Write a numerical expression for 15 minus the sum of 6 and 7

Answers

Answer 1

Answer:

15-(6+7)

Step-by-step explanation:

Answer 2

Answer:

15 - (6+7)

Step-by-step explanation:


Related Questions

Tanner bought 7 pieces of bubble gum for 56¢. Write
and solve an equation to find g, the cost of one piece of bubble gum

Answers

Answer: 8 = g

Step-by-step explanation:

56 divided by 7 = g

8 = g

Solve for x.
A=x+y-2

Answers

Answer:

x=1

Step-by-step explanation:

In 1985, there were 326,030 cell phone subscribers in the United States. By 2008, the number of cell phone subscribers increased to 262,359,000. What is the geometric mean annual increase for the period?

Answers

33.7618% is the geometric mean annual increase for the period

Rate of Increase Over Time(GM)=[tex]\sqrt[n]{value end period / value start period }[/tex] -1

In 1985, there were 326,030 cell phone subscribers in the United States. By 2008, the number of cell phone subscribers increased to 262,359,000. we have to find  the geometric mean annual increase for the period

from 1885 to 2008 that is (2008- 1885=23 ) in 23 years the GM become

therefore n= 23

value of start period = 326030

value of end period = 262359000

rate of increase over time GM= [tex]\sqrt[23]{262359000/326030} -1[/tex]

                                                 = 1.337618 -1

                                                  =0.337618

rate of increase is 33.7618% per year

33.7618% is the geometric mean annual increase for the period

learn more about of percentage here

https://brainly.com/question/16112709

#SPJ9

How to find the slope of the line that passes through the points (−2,3) and (5,−7)

Answers

Answer:

[tex]\frac{-10}{7}[/tex]

Step-by-step explanation:

Use the formula

m= [tex]\frac{y2-y1}{x2-x1}[/tex]

another way to say this is Δy divided by Δx

Δ means "change in"

m = slope

The y2 value is -7

The y1 value is 3

The x2 value is 5

The x1 value is -2

Plug those values in the formula

m = [tex]\frac{(-7)-3}{5-(-2)}[/tex]

Simplify

m = [tex]\frac{-10}{7}[/tex]

The slope is [tex]\frac{-10}{7}[/tex]

Given the function g(x)=11x^2+28x, solve for g(x)=−12.

Answers

Answer: -2, -6/11

Step-by-step explanation:

[tex]11x^2 +28x=-12\\\\11x^2 +28x+12=0\\\\(11x+6)(x+2)=0\\\\x=-2, -6/11[/tex]

Which is the mean? a density curve that models the distribution of a quantitative variable shown here. identify the location of the mean and median by letter. justify your answer.

Answers

The location of the mean and median by letter are C and B, respectively

How to identify the location of the mean and median by letter?

The given parameter is the density curve that models the distribution of a quantitative variable

From the density curve, we can see that:

The density curve is a right-skewed distribution

In a right-skewed distribution, the median is the middle line and the mean is to the right of the median

This means that

Median = B

Mean = C

Hence, the location of the mean and median by letter are C and B, respectively

Read more about right-skewed distribution at

https://brainly.com/question/16410052

#SPJ1

Leah is training to run half marathon Her goal For training is to run 20 miles a week. she ran 3 1/2 Miles on Monday 4. 3/4 miles on Tuesday 5 miles on Wednesday And 4 miles On Thursday. how Many Miles will She Need to run On Friday In Order to meet her goal?

Answers

The number of miles she should run on Friday is 2 3/4 miles.

Given that, Leah is training to run a half marathon her goal training is to run 20 miles a week. she ran 3 1/2 miles on Monday 4 3/4 miles on Tuesday 5 miles on Wednesday and 4 miles on Thursday.

We need to find how many miles will she need to run on Friday in order to meet her goal.

How to add mixed fractions?

Follow these steps to add mixed fractions:

Add the whole numbers together. Find the lowest common denominator (LCD) of both fractions. The LCD is the lowest number that is evenly divisible by both numbers.Convert the fractions to have the LCD as their denominator.Once you have a common denominator, the fractions can be added by simply adding the numerators.

Now, the number of miles she ran together from Monday to Thursday

=3 1/2 + 4 3/4 + 5 + 4 =(3+4+5+4)(1/2 + 3/4)

=16 (2/4 + 3/4)

=16 5/4

=17 1/4

Remaining miles = 20-17 1/4

=20-69/4

=(80-69)/4

=11/4

=2 3/4

Therefore, the number of miles she should run on Friday is 2 3/4 miles.

To learn more about the addition of mixed fractions visit:

https://brainly.com/question/21495400.

#SPJ1

Ruby looks over the edge of her boat and sees fish 0.4 meter below the surface of the water. If Ruby holds a 1-meter long net at 0.5 meter above sea level, What will be the answer?

Answers

It should be noted that Ruby will be able to reach the fish

What is sea level?

It should be noted that sea level simply means the sea base level that is used for measuring the elevation and the depth on the Earth.

It should be noted that Ruby looks over the edge of her boat and sees fish 0.4 meter below the surface of the water and Ruby holds a 1-meter long net at 0.5 meter above sea level.

It should be noted that he will be able to each the fish. This will be illustrated as:

=1m - (0.4 + 0.5)

= 1 - 0.9

= 0.1m

Therefore, the long net is enough to reach the fish.

Learn more about sea level on:

brainly.com/question/22136251

#SPJ1

Ruby looks over the edge of her boat and sees fish 0.4 meter below the surface of the water. If Ruby holds a 1-meter long net at 0.5 meter above sea level. Can she reach the fish?

please help with this one! ASAP

Answers

Answer: 699 m^2

Step-by-step explanation:

Cyndee wants to invest $50,000. Her financial planner advises her to invest in three types of accounts: one paying 3%, one
paying 5%, and one paying 6% simple interest per year. Cyndee wants to put twice as much in the lowest-yielding, least-risky
account as in the highest-yielding account. How much should she invest in each account to achieve a total annual return of
$2120?

Answers

Answer:

$25,333.33 at 3%$12000 at 5%$12,666.67 at 6%

Step-by-step explanation:

Cyndee invests $50,000 in accounts earning 3%, 5%, and 6% annually, for a total annual return of $2120. She puts twice as much in the first account as in the third. You want to know the amount invested in each account.

Setup

Let x represent the amount invested in the third account. Then 2x is the amount invested in the first account, and (50000 -3x) is the amount invested in the second account. The total return is ...

  0.03(2x) +0.05(50000 -3x) +0.06(x) = 2120

Solution

Simplifying the equation gives ...

  -0.03x +2500 = 2120

  380 = 0.03x . . . . . . . . . . add 0.03x-2120

  12,666 2/3 = x . . . . . . . divide by 0.03

  2x = 25,333 1/3

  50000 -3x = 12,000

Cyndee should invest 25,333.33 at 3%, $12,000 at 5%, and $12,666.67 at 6%.

For each function, find the vertex, the axis of symmetry, the y-intercept, the x- intercepts (if any), whether the parabola opens upward or downward, the intervals on which the function is increasing or decreasing, the maximum or minimum value, and the range. Then sketch the graph. y = -2(x + 3)² + 8​

Answers

Given parabola [tex]y=-2(x+3)^{2} +8[/tex]  have vertex (-3,8)

axis of symmetry :x=-3

x intercepts (-1,0),(5,0)

y intercepts (0,-10)

Maximum value (-3,8)

Range is y[tex]\leq 8[/tex] or (-∞,8]

Parabola is increasing in (-∞,-3) and decreasing in (-3,∞)

How to identify parabola type from vertex form and its attributes?

The parabola equation y=ax²+bx+c

The parabola equation in its vertex form is

y = a(x - h)² + k, where

a  is same as the a coefficient in the standard form;

(h, k)  is coordinates of the vertex of parabola

h and k can be calculated as

h = - b/(2a)

k = c - b²/(4a)

If a is negative the parabola opens downward and if a is positive the the parabola opens upward

Axis of symmetry : x= h

For  a parabola y=ax²+bx+c if a<0  then the range is y [tex]\leq k[/tex] and if a>0 then range is y[tex]\geq k[/tex]

For Maximum and minimum value , if a<0 then vertex is the maximum value and if a>0 then vertex is the minimum value.

For given equation [tex]y=-2(x+3)^{2} +8[/tex]

As this equation is in vertex form

h=-3, a=-2, k=8

Therefore, vertex = (-3,8)

For x intercept put y=0

Then [tex]y=-2(x+3)^{2} +8\\y\\=-2x^{2} -12x-10\\y=0\\\\x=-1,-5\\put x=0 \\y= -10[/tex]x intercepts (-1,0),(5,0)

y intercepts (0,-10)

Axis of symmetry : x= -3

[tex]y=-2(x+3)^{2} +8\\y=-2x^{2} -12x-10[/tex]

As a is negative therefore range is y[tex]\leq 8[/tex] or (-∞,8]

As a is negative therefore vertex (-3,8) is the maximum value

f'(x)= -4x-12

f'(x)=0 gives x= -3

f'(x)>0 in (-∞,-3), parabola is increasing in (-∞,-3)

f'(x)<0 in (-3,∞), parabola is decreasing in (-3,∞)

Please find the graph attached.

Learn more about parabola from

https://brainly.com/question/21685473

#SPJ1

Someone can help me please

Answers

4-3i^2

Step-by-step explanation:

(2-3i)^2

(2-3i)(2-3i)
4-6i-6i+3i^2
3i^2-12i+4

Please I need help !!!!

Answers

A--->A'=(-2,6)

B--->B'=(7,3)

Polygon B is a scaled copy of Polygon A using a scale factor of 5. Polygon A's area is what fraction of Polygon B's area?

Answers

Polygon A's area is 1/25 times of Polygon B's area.

What do you understand by polygon?

In geometry, a polygon is a two-dimensional closed shape with straight sides that is flat or plane. It doesn't have any curved edges.

A polygon's sides are also known as its edges. The vertices (or corners) of a polygon are the points where two sides meet.Polygons are named after the number of sides they have. Polygons are commonly represented by the symbol n-gon, where n indicates the number of sides.A 5-sided polygon is called a 5-gon, a ten-sided polygon is called a 10-gon, and so on.

Now, as per the given question;

The formula of the scale factor is given as;

Area of Polygon B = (scale factor)²×(Area of Polygon A).

The scale factor is given as 5.

(Area of Polygon B)  = (5)²×(Area of Polygon A)

Further simplifying;

(Area of Polygon B) = (25)×(Area of Polygon A)

or,

Area of Polygon A = (1/25)×Area of Polygon B

Therefore, the area of polygon A is found to be 1/25 times times the area of the polygon B.

To know more about the polygon, here

https://brainly.com/question/26583264

#SPJ9

A5.1 m long ladder is leaning against a
wall. The wall stands perpendicular to the
ground. The base of the ladder is 1.8 m
away from the wall.
Work out the size of the acute angle that
the ladder makes with the ground.
Give your answer in degrees to 1 d.p.

Answers

The acute angle the ladder makes with the ground is 69.3 degrees.

How to find the acute angles formed from the right triangle ?

The ladder is 5.1 m and it is leaning against a wall.

The wall is perpendicular to the ground.

This means the ground forms 90 degrees with the wall.

This situation forms a right angle triangle.

Therefore, the acute angle the ladder forms with the ground can be found as follows:

Using trigonometric ratios,

cos ∅ = adjacent / hypotenuse

where

∅ = acute angle

Therefore,

adjacent side = 1.8 m

hypotenuse side = 5.1 m

Hence,

cos ∅ = 1.8 / 5.1

∅ = cos⁻¹ 0.35294117647

∅ = 69.3326835065

∅ = 69.3°

Therefore, the acute angle the ladder makes with the ground is 69.3 degrees.

learn more on right triangle and perpendicular lines here: https://brainly.com/question/12904927

#SPJ1

simplify (2^4)^-1. Answer options: 1 over 2^-4, 1 over 2^4, -2^4, and 2^3

Answers

[tex]\frac{1}{2^{4} }[/tex]  is simple form of the equation.

What in mathematics is a linear equation?

There are only one or two variables in a linear equation. No variable can be multiplied by a number larger than one or used as the denominator of a fraction in a linear equation. All of the points fall on the same line when you identify the values that together make a linear equation true and plot those values on a coordinate grid.A linear equation with one variable is one that contains just one variable. It has the formula Ax + B = 0, with A and B being any two real numbers and x being an ambiguous variable with only one possible value. One such linear equation in one variable is 9x + 78 = 18.

Simply solve this equation = [tex](2^{4}) ^{-1}[/tex]

multiply the powers   = [tex]2^{-4}[/tex]

now right on simple form  = [tex]\frac{1}{2^{4} }[/tex]

Learn more about linear equation

brainly.com/question/11897796

#SPJ9

Solve the following compound inequality. Graph the solution.
5x2-30 and 5x ≤ 15
What is the solution? Select the correct answer below and, if necessary, fill in the answer boxes within your choice.
OA. xs
OB. xs
OC. x2
OD. SXS (Type integers or decimals.)
E. The compound inequality has no solution.
OF. The solution is all real numbers.
XXXB
or x2 (Type integers or decimals.)
(Type an integer or a decimal.)
(Type an integer or a decimal.)

Answers

The solution to the inequality is x ≤ 3

How to solve the compound inequality and graph the solution?

The compound inequality is given as:

5x ≤ -30 and 5x ≤ 15

Divide both sides of the individual inequality in the compound inequality by the coefficient of the variable x

So, we have

x ≤ -6 and x ≤ 3

One of the above inequalities can be true

x ≤ 3 is a proper set of x ≤ -6

So, the solution to the inequality is x ≤ 3

See attachment for the graph of the inequality

Read more about inequality at

https://brainly.com/question/25275758

#SPJ1

gina visits her local farm to buy apples oranges to make a fruit salad. she has 10.00 to spend.

Answers

Based on the fact that Gina has $10.00 to spend, if she only buys oranges, the number of oranges she can buy is 29.41176 oranges.

How to find the number of oranges?

The number of oranges that Gina can buy when she visits her local farm to buy apples and oranges for a fruit salad can be found as:

= Amount that Gina has to spend / Price of oranges

Solving for the total amount of oranges gives:

= 10 / $0.34

= 29.41176 oranges.

The full question is:

Gina visits her local farm stand to buy apples and oranges to make a fruit salad. She has​ $10.00 to spend. If she buys only oranges and oranges are $0.34 how much oranges can she buy

Find out more on oranges to be bought at https://brainly.com/question/17043039

#SPJ1

The mean of the commute time to work for a resident of Boston is 27.1 minutes. Assume that the standard deviation of the commute time is 8.3 minutes.

a) What is the minimum percentage of commuters in Boston has a commute time within 2 standard deviation of themean?

b) What minimum percentage of commuters in Boston has a commute time within 1.6 standard deviation of the mean?

c) What are the commute times within 1.4 standard deviation?

Answers

a) The minimum 75% of commuters in Boston has a commute time within 2 standard deviation of the mean.

b) The minimum 60.93% of commuters in Boston has a commute time within 1.6 standard deviation of the mean.

c) Commute times within 1.4 standard deviation are lie between 15.48 to 38.72.

Explanation:

Given that

The mean of the commute time to work for a resident of Boston is 27.1 minutes.the standard deviation of the commute time is 8.3 minutes.

To find

a) What is the minimum percentage of commuters in Boston has a commute time within 2 standard deviation of the mean?b) What minimum percentage of commuters in Boston has a commute time within 1.6 standard deviation of the mean?c) What are the commute times within 1.4 standard deviation?

So, according to the question

We know that

The minimum percentage within k standard deviations of the mean,

                            = (1- [tex]\frac{1}{k^2}[/tex] )×100

a) What is the minimum percentage of commuters in Boston has a commute time within 2 standard deviation of the mean?

The minimum percentage within 2 standard deviations of the mean,

                            = (1- [tex]\frac{1}{2^2}[/tex] )×100

                            = (1- [tex]\frac{1}{4}[/tex] )×100

                            = ( [tex]\frac{4-1}{4}[/tex] )×100

                            =  [tex]\frac{3}{4}[/tex] ×100

                            = 3 × 25

                            = 75%

b) What minimum percentage of commuters in Boston has a commute time within 1.6 standard deviation of the mean?

The minimum percentage within 1.6 standard deviations of the mean,

                            = (1- [tex]\frac{1}{1.6^2}[/tex] )×100

                            = (1- [tex]\frac{1}{2.56}[/tex] )×100

                            = ( [tex]\frac{2.56-1}{2.56}[/tex] )×100

                            =  [tex]\frac{1.56}{2.56}[/tex] ×100

                            = 1.56 × 39.06

                           = 60.93%

c) What are the commute times within 1.4 standard deviation?

Within 1.4 standard deviations,

     commute times  = 27.1 ± (1.4×8.3)

                                 = 27.1 ± 11.62

      for + sign,

                                 = 27.1 + 11.62

                                 = 38.72

      for - sign,

                                 = 27.1 - 11.62

                                 = 15.48

Commute times within 1.4 standard deviation are lie between 15.48 to 38.72.

To learn more about standard deviation and mean, please click on the link:

https://brainly.com/question/14959599

#SPJ9

What is a sticker price of higher education

Answers

Sticker price refers to the published tuition and fees, whereas net price refers to the amount the student actually pays after financial help which is much lower than the sticker price.

Sticker price

The sticker price of a college education is the entire annual cost. This cost covers the whole cost of tuition every year, books, lodging, and board, as well as any other charges the campus may levy, such as a parking permit or library card fee.

In this report, there are two prices listed: a sticker price and a net price. The sticker price of a college education is the entire annual cost. Every year's full tuition, books, housing, and board are included in this amount.

Hence sticker price refers to the published tuition and fees

To learn more about the Sticker Price here,

https://brainly.com/question/27824461

#SPJ1

6. Reggie went to the grocery
store and purchased several
items. The cereal he bought cost
$2.10, which was twice as much as
the eggs. What was the price of the
eggs?

Answers

$1.05 is half the price of the eggs, so the answer is $1.05
cereal = $2.10
eggs = $2.10 divided by 2
2.10/2=1.05

price of eggs = $1.05

Find the area of the polygon with the given vertices.
K(-3, 4), L(1, 4), M(-4,-2), N(0, - 2)

Answers

Answer: 24.33 units

Step-by-step explanation: If we appropriately measure the distance between the points we can depict a parallelogram with 2 sides measuring 6.083 units and 2 others measuring 4 units. We multiply 4 x 6.083 and get the area: 24.33 units

Answer: 24

Step-by-step explanation: As the formula to solve this equation is A= 1/2 | [(x1y2) - (x2y1)] + [(x2y3) - (x3y2)] + [(x3y4) - (x4y3)] + [(x4y1) - (x1y4)]

Which would be (with the numbers)

[(-3 x 4) - 1 x 4)] + [(1 x -2) - (0 x 4)] + [(10 x 2) - (-4 x -2)] + [(-4 x 4) - (-3 x -2)]

which lowers down too

(-12 - 4) + (-2 - 0) + (0 - -8) + (-16 - 6)

Then that gets us (absolute values) of

|-16| + |-2| + |8| + |-22|

using absolute values that gets us to

16 + 2 + 8 + 22

Which is equal to 48.

Don't forget to divide by 2 because we need half of it as it says in the beginning of the formula (A = 1/2)

So that gives us the answer of 24.

Hope this helped :)

Also, this could help by labeling each coordinate as a (X, Y) Number

[-3(x1) , 4(y1)}  (you could write the x and y part above it)

And then you go down the list and label each as either x1 , x2 , x3 , x4 (for the left side of comma) and then y1 , y2, y3 , y4 (for the right side of the comma)

Aisha drove 17 miles in 3 hours. On average, how fast did she drive, in miles per
hour? Enter your answer as a whole number, proper fraction, or mixed number in
simplest form.

Answers

Answer: 5.6 repeating

Step-by-step explanation: No explanation added.

Chloe reads 7 pages of a mystery book in 9 minutes. What is her average reading rate in pages per
minute?

Answers

Answer:

1.25

Step-by-step explanation:

you have to take the 9 pages and divide by 7 and then divide that by 60 and u get 1.25

How many bacteria are in the Petri dish after 120 minutes ?

Answers

Answer:

D. [tex]2^9[/tex]

Step-by-step explanation:

[tex]2^6*2^3 = 2^9[/tex]

We can just add the exponents together.

If it were continued another 120 minutes past this, it would be

[tex]2^9*2^3 = 2^1^2[/tex]

need help asap please

Answers

Answer:

3/30 for 66 lo siento I core help you

write an equation using f(x) notation to show how the numbers in the domain and the range are related {(1,2), (-2,-4), (3,6), (0,0)

Answers

Answer:

f(x) = 2x

Step-by-step explanation:

It is obvious that the relationship between x and y is y = 2x from the numbers given

So equation is f(x) = 2x

Which of the following expressions is equivalent to 9x-27

Answers

Answer:

3

Step-by-step explanation:

9x-27=0

+27. +27

9x=27

x=3

At the arcade, Ryan, Sara, and Tim played video racing games, pinball, and air hockey. Ryan spent $6 for 6 racing games, 2 pinball games, and 1 game of air hockey. Sara spent $12 for 3 racing games, 4 pinball games, and 5 games of air hockey. Tim spent $12.25 for 2 racing games, 7 pinball games, and 4 games of air hockey. How much did each of the games cost?

Answers

Answer: Racing $.50

Pinball $.75

Air Hockey $1.50

I need help I dot understand someone explain it step by step

Answers

Use Pythagorean theorem where c is the missing side
Other Questions
A 100kg bag contains peanuts and almonds. Peanuts are priced at $2 per kg and almonds are priced at $2.40 per kg. If the whole bag is priced at $2.08 per kg, how many kg of peanuts and almonds are there in the bag? Which statements describe the key features of the graph of f(x) = -The graph has a y-intercept at -2.The graph has an x-intercept at -6.The graph has a vertical asymptote at x = 3.The graph has a vertical asymptote at x = -3.The graph has a horizontal asymptote at y = 1.18-3x-x? Check all that apply.x-9 A scientist isolated DNA from a particular bacterium and decided to analyze it. The sequence of the bacterial DNA is ATGGGCTASTCTT What willthe complementary strand be? 15) Falcons can dive at speeds of up to 318 feet per second. Convert this speed to miles perhour. How can you use this document to argue that Hammurabi code was just?How can you use this document to argue that Hammurabi code was not just?HURRY Which statement is true about the function of ATP?ResponsesIt's used to store energy for long periods of time.It's used to store energy for long periods of time.It can only be used to help transport molecules.It can only be used to help transport molecules.It's primarily used to fuel cell division.It's primarily used to fuel cell division.It provides energy for all cellular activities. 41. find the odds against selecting an ace when a card is drawn from a standard deck of cards. odds against select the correct answer. what is the most likely explanation for sarah maintaining a log of each time she spends or receives money? a. making a note each time she receives money so that she does not forget where it came from b. making a note of each expense so that she does not repeat purchases c. preparing a report for her bank on how she spends money d. preparing a budget to review her expenses The writing of Thomas Jefferson is most closely associated with: *O The Treaty of Paris 1763O The U.S. Declaration of IndependenceO Common SenseO The U.S. Constitution suppose a student poured equal volumes of water and naoh in two different flasks. he forgets to label his flasks and is confused about which is which. he decides to determine the contents of the flasks by adding 10 ml of each to 10 ml of hcl. Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. Release your mouse button when the item is place. If you change your mind, drag the item to the trashcan. Click the trashcan to clear all your answers. Prove: The segment joining the midpoints of the diagonals of a trapezoid is parallel to the bases. Slopes are equal; therefore, segments are parallel What was made possible by the domestication of the camel in the fourth century?the introduction of enslavement to Chinathe introduction of enslavement to Chinatrade across the Sahara Deserttrade across the Sahara Desertagriculture in West Africaagriculture in West Africathe opening of the Silk Road why were al-qaeda so against the usa a covalent bond is likely to be polar when . question 4 options: the two atoms sharing electrons are of the same elements carbon is one of the two atoms sharing electrons one of the atoms sharing electrons is more electronegative than the other atom the two atoms sharing electrons are equally electronegative Can someone provide an example and counter example of a function ? maria obsesses for hours over her hair and make-up in the morning. she has been fired from two jobs in the past four months, as she cannot get to work on time. this is an example of which of the four d's? HELP What is the falling actions, rising actions, and resolution of the house on mango street. help solve show how to!!! M(-7)=|3x - 2| + 2 I need help solving x. photo is attached below. when writing a disaster plan for implementation during a mass casualty incident (mci), which percentage of victims often require admission to the hospital for further treatment?