Calculate the average of the following values:
4,5,6,6,9.
Answer:
the answer is 1.65
hope this helps:)
Answer:
6
Step-by-step explanation:
Add up all the values, then divide by the total number of values--5 values, in this case.
(4+5+6+6+9)/5 = 30/5 = 6
The subtraction problem 11.5−7.2 can be rewritten as the addition problem _[blank]_.
The subtraction expression 11.5−7.2 in the form of addition will be 11.5 + 7.2.
What is an expression?Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.
Given expression of subtraction is,
E = 11.5−7.2
The expression in the form of addition will be converted by changing the sign of 7.2.
E= 11.5 - (-7.2)
E = 11.5 + 7.2
Therefore, the subtraction expression 11.5−7.2 in the form of addition will be 11.5 + 7.2.
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I need the answer in the next hour please!
f(x)=2(x)^2-2, Find f(2-a)
f(2-a)=2(2-a)^2-2
Answer:
2a² - 8a + 6Step-by-step explanation:
Given function:
f(x) = 2x² - 2To find f(2 - a) substitute x with 2 - a:
f(2 - a) = 2(2 - a)² - 2 = 2(4 - 4a + a²) - 2 =2a² - 8a + 8 - 2 =2a² - 8a + 6f(x)=2(x)^2-2
[tex]\\ \rm\hookrightarrow f(2-a)[/tex]
[tex]\\ \rm\hookrightarrow 2(2-a)^2-2[/tex]
[tex]\\ \rm\hookrightarrow 2(2^2-4a+a^2)-2[/tex]
[tex]\\ \rm\hookrightarrow 2(4-4a+a^2)-2[/tex]
[tex]\\ \rm\hookrightarrow 8-8a+2a^2-2[/tex]
[tex]\\ \rm\hookrightarrow 2a^2-8a+6[/tex]
Using the order of operations, which operation in the given expression should we complete first? 3 6 X 5 - 3 = 3 OA) Multiply 6 and 5. OB) Divide 3 by 3. OC) Cube 3. OD) Subtract 3 from 5.
What are the coordinates of POINT A?
A.)1,2
B.)-1,2
C.)2,1
D.)1,-2
Please help me! This is very important! Who every answers first and I think that answer is really good I will mark Brainly est!!!! Please help me! I need details! Please I really need this
Im not good at coordinate graphs but I think the answer is the second one, sorry if I'm wrong!! :)
The cost at a store for a package of pens is $3 and for a three-ring binder
is $4. Write a variable expression for the cost of buying p packages of
pens and b binders. How much would 3 packages of pens and 8 binders
cost?
Hey there! I'm happy to help!
Our question tells us that the number of packages is p and that the number of binders is b.
Each package is $3, so for every p we have, we will have 3 more dollars. So we have 3×p, which is written as 3p.
The same goes for binders. For every binder, we have 4 more dollars, so we have 4×b which is just written as 4b.
An expression is just a number sentence without an equal sign, so something like 1+1 or 7x². The variables are just the letters or symbols that represent an unknown quantity (so 7x² is a variable expression).
Our total cost is going to be the cost of our packages and our binders, so we combine the 3p and 4b we previously came up with, so our expression is 3p+4b.
Now, we can plug in our amounts of each thing into the equation. We will insert our 3 packages in plae of the p and our 8 binders in place of the b to find our cost.
In algebra, you can also write multiplication as a number outside of a number in parentheses so 4(2)=8 for example.
3(3)+4(8)
9+32
41
So, the total cost is $41.
Have a wonderful day and keep on learning! :D
Help me Guess just help please
Subtract -1 3/5 ( -2 5/8 ) enter your answer as a simplest fraction by filling in the boxes
Answer:
21/5
Step-by-step explanation:
Answer:
1 [tex]\frac{1}{40\\}[/tex]
Step-by-step explanation:
i hope this helps :0
Solve for x.
1. xyz=y
2. s=7zx
Answer:
[tex]1)xyz = y \\ xz = 1 \\ x = \frac{1}{z} \\ 2)s = 7zx \\ x = \frac{s}{7z} \\ thank \: you[/tex]
Step-by-step explanation:
1. xyz = y
[tex] = > x = \frac{y}{yz} [/tex]
[tex] = > x = \frac{1}{z} (ans)[/tex]
2. s = 7zx
[tex] = > x = \frac{s}{7z} (ans)[/tex]
I WILL MARK AS BRAINLIEST! Write an Equation that represents the points in the table
Answer:
y= -x+2
Step-by-step explanation:
Using the equation, y = mx+b, you know you have to find the slope. Find the slope using two coordinate points, (-2,4) and (0,2).
Subtract 2-4/0+2 - the answer is -1. Your slope is -1 and the y axis is given so the equation is y=-x+2
PLEASE SOLVE ALL OF THE QUESTIONS IN FULL
what are 3/4 equivalent to?
Answer:
6\8
Step-by-step explanation: Because 3/4 times 2/2 is 6/8
I WILL MARK AS BRAINLIEST! Solve For X and Y
Answer:
brainliest is appreciated
Rafael wants to wallpaper the back wall of his bedroom. The wall is in the shape of a rectangle. Its length is 13 feet and its width is 9 feet. Suppose wallpaper costs $7 for each square foot. How much will wallpaper cost for the wall?
Answer:
$819
Step-by-step explanation:
First we find the area of the wall so we multiply 13ft x 9ft.
13ft x 9ft = 117ft
We know each square foot is equal to $7. So now we multiply 117 x 7 to get the total cost.
117 x 7 = $819
please helpp me i'm kinda not smart in da head
Answer:
the answer would be C.
Step-by-step explanation:
C is your answer
Answer:
answer b
Step-by-step explanation:
Find the number that makes the ratio equivalent to 45:15.
:3
Answer:
9
Step-by-step explanation:
45/15=x/3
3*3=x
x=9
Answer:
3*5=15 so __*4=45 so answer is 45/5=9
Step-by-step explanation:
Answer needed WITH explanation asap
Answer:
14
Step-by-step explanation:
5x + 2 + 48 = (180-120)+30 +30
5x+50 = 60+30+30
5x+50=120
5x=120-50
5x = 70
x = 70/5
x = 14
Please help:
First photo is the graph, second is the questions.
Answer:
i don't know ok but today is my math exam
Help!
Write 3*3*3*3 in exponential form.
Answer:
3⁴
Step-by-step explanation:
3*3*3*3 is equal to 3⁴
3 fewer than a number squared and four
Answer:
([tex]n^{2}[/tex]+4)-3
Step-by-step explanation:
since it says "and four" i think it means it is in parenthesis
Answer:
n^2 + 1
Step-by-step explanation:
Let the unknown number be n. Then "a number squared and four" is
n^2 + 4, and 3 fewer than this result is
n^2 + 3 - 3, or n^2 + 1
please help thank u!!
Answer:
[tex]2x^3-3x+4+\frac{5}{3x-5}[/tex]
Step-by-step explanation:
Use polynomial; long division to divide the two polynomials. Remember to put each polynomial in standard form, or rather organize each polynomial by their degree (exponent). The polynomial with the highest exponent will go first, then each with its varying exponent will suceed.
_____[tex]\underline{2x^2\ \ -\ \ 3x\ \ +4}[/tex]
[tex]3x-5[/tex] | [tex]6x^3 - 19x^2+27x-15[/tex]
[tex]\underline{-6x^3+10x^2}[/tex]
[tex]-9x^2+27x[/tex]
[tex]\underline{+9x^2-15x}[/tex]
[tex]12x-15[/tex]
[tex]\underline{-12x+20}[/tex]
[tex]5[/tex]
find the exact coordinates of X on segment JK that is 1/3 the distance from j to k. J (-1,4) K(5,-3)
Answer:
ee
Step-by-step explanation:
e
Please help! Greatly appreciated sorry for bad quality
Answer: D
Step-by-step explanation: 15 : 5 is equivalent to 60 : 20 because you multiply both sides by 4
Is –862 ÷ 1 positive or negative?
Answer:
Negative
Step-by-step explanation:
Answer:
It's negative
Step-by-step explanation:
–862 ÷ 1
= -862
and even remember that if a negative number is divided by positive the answer will be always negative
same applies here
Find the number that makes the ratio equivalent to 6:24.
1:4
Answer: 6:24 . 1:4
*All devided by 6
If helpful, Brainliest please
Answer: 1 : 4
Step-by-step explanation:
6 is divisible by 6 and 24
so , after dividing the answer will be 1 : 4
At a college, the cost of tuition increased by 10%. Let t, represent the former cost of the tuition. What is the new cost of tuition?
I WILL MARK BRAINLIEST! Solve for X
Answer:
Step-by-step explanation:
You are to assume in both problems that the two triangles are similar. That is a very dangerous assumption -- especially in later math classes. But in this case, there is no other way to do the problem. The two sets of triangles look like they are proportional. So set up two ratios that are = to each other
On the left
long side small triange / long side large triangle = base small triangle / base large triangle
On the right
hypotenuse/longest leg = hypotenuse / longest leg.
Problem A
Set up the similar Proportion
5/40 = x/20 Cross Multiply
40x = 20*5
40x = 100 Divide by 40
x = 100/40
x = 2.5
Problem B
Again set up the similar triangle proportion
15/10 = x/2 Multiply by 2
15*2/10 = x
3 = x
Find the area of each parallelogram.
triangle ABC △ABC triangle, A, B, C is rotated -120° about point P create ΔA' B' C'
Answer:
40°
Step-by-step explanation:
Since triangle ABC is identical to triangle A'B'C', it has the same measures of respective sides and angles, and ang A is therefore equal to angle A'.
After rotational transformation, the measure of angle ∠A' = 40°.
What is a rotation transformation?A rotation is a transformation that turns the figure in either a clockwise or counterclockwise direction on the coordinate plane. In both transformations the size and shape of the figure stays exactly the same.
For the given situation,
The diagram shows the two triangles.
Triangle ABC is the original triangle and A'B'C' is the triangle obtained after the rotation of -120°.
From the definition, in rotational transformation the size and shape of the figure stays exactly the same. Then the angle measures are also remains the same.
Thus the measure of angle A' is [tex]\angle A' = \angle A = 40[/tex]
Hence we can conclude that after rotational transformation, the measure of angle ∠A' = 40°.
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