20. Your friend says the absolute value equation |2x + 9 + 7 = 3 has two solutions
because the constant on the right side of the equation is positive. Is your friend
correct? Explain.

Answers

Answer 1

This is an absolute value problem. In mathematics, absolute value is simply defined as the distance of a number from zero on the number line, irrespective of the direction on either side of zero.

In the absolute value given which is; |2x + 9| = -4, we can see that there is an absolute value when the right hand side is negative and not when it is only positive.

Thus, the friend is not correct.

We are given the equation;

|2x + 9| + 7 = 3

Now when dealing with absolute values, it means that the solution is either positive or negative.

For example;

|x| = 5 means that x = +5 or -5

Thus in this question, let us first of all simplify the equation to get;

|2x + 9| = 3 - 7

|2x + 9| = -4

From |2x + 9| = -4, we can see that there is an absolute value when the right hand side is negative and not when it is only positive.

Thus, the friend is not correct.

Read more here; brainly.com/question/12928519


Related Questions

kareem made $273 for 13 hours of work. At the same rate, how much would he make for 5 hours?

Answers

Answer:

$105

[tex] \frac{273}{13} \times 5 = 105[/tex]

The length of a rectangle is twice its width.
The perimeter of the rectangle is 126 feet.

Answers

Answer: Length = 42ft Width = 21ft

Step-by-step explanation:

Let "w" be width

W = 21ft

w x 2 = L

L = 42ft

Perimeter:

42+42+21+21

=126

Evaluate and simplify expressions

Pls put the solution as well

Answers

Answer:

The answer for question no 1 is 9

Step-by-step explanation:

Check out the steps as I've done in the image sent

Work 2 and 3,using the same process

Hope you understand?

A circle is the set of points around that are all the SAME distance from a central point inside the circle.
O True
O False

Answers

Answer:

True

Step-by-step explanation:

The statement is TRUE and is the basic definition of a circle

true, if they were diff distances it would be an oval or a squashed circle or whatever


What is the perimeter of this rectangle?
21 units
3 units
12 units
None of the above.

Answers

Answer:

12

Step-by-step explanation:

12 units....

perimeter is the total surface area of a certain object or shape... counting only the surfaced side of each square tat makes up this rectangle.... its perimeter is 12 units

8 - 4s = s + 13

what is s?

Answers

Answer:

-5s = 5

S= - 1

Step-by-step explanation:

Udndkdjdndjxbdnekdjdndkdjdjd

The answer would be s=1

Because 8-4s=s+13
-8+4s= -8
-4s= s+5
+4s=+4s +5
5 divided by 5 gives you positive 1. Hope this helps

PLS HELP!!
Find the slope of the line through each pair of points.(-10, -1). (-15, -7)*

Answers

Answer:

6/5

Step-by-step explanation:

To find the slope, we use the formula

m = ( y2-y1)/(x2-x1)

    = ( -7 - -1)/(-15 - -10)

    = (-7+1)/(-15+10)

    = -6/-5

  = 6/5

what's the answer to 5 of the statement side , please help​

Answers

Step-by-step explanation:

2x+3x=15

5x=15

x=15/5

x=3

Find the midpoint of (4,5) & (2,2)

Answers

Answer:

&

Step-by-step explanation:

Answer:

[tex]\boxed {\boxed {\sf (3, \frac{7}{2}) \ or \ (3, 3.5)}}[/tex]

Step-by-step explanation:

The midpoint is the middle point of a line segment that bisects (splits into 2 equal parts) the line segment. When we calculate the midpoint, we basically find the average of the x-coordinate, then the average of the y-coordinates. The formula is:

[tex](\frac{x_1+x_2}{2} , \frac{y_1+y_2}{2})[/tex]

In this formula, (x₁, y₁) and (x₂, y₂) are the endpoints of the segment.

We are given the points (4,5) and (2,2). Match the value and the corresponding variable.

x₁= 4 y₁= 5 x₂= 2 y₂=2

Substitute these values into the formula.

[tex](\frac{4+2}{2} , \frac{5+2}{2})[/tex]

Solve the numerators.

X-coordinate: 4+2= 6 Y-coordinate: 5+2=7

[tex](\frac{6}{2}, \frac{7}{2})[/tex]

Divide.

[tex](3, \frac{7}{2}) \ or \ (3, 3.5)[/tex]

The midpoint of the line segment is (3, 7/2) or (3, 3.5).

Which Statement is not true based on the figures below?

Answers

the first statement is incorrect.

A statement that is not true based on the figures would be A; CD = JK

WE are given the figure of two similar pentagon figure that are;

ABCDE and JKLMN

Similar figure are zoomed in or zoomed-out (or just no zoom) version of each other. For two similar figures, the pair-by-pair similar angles of those two similar figures are called corresponding angles tthat are of same measurement.

Thus, we can see that the sides are similar to each other.

AB = JK

CB = LK

CD = LM

DE = MN

AE = JN

Since CD = JK is not valid

Therefore, we can conclude that the first statement is incorrect.

Hence, the answer is A.

Learn more about similar figure here;

https://brainly.com/question/29291672

#SPJ3

Order the numbers below from least to greatest.


Answers

Answer:

I don't believe any of these are correct.

I think the real order is:

-9/4, -1, [tex]\sqrt{6}[/tex], 1/4, 3.9

But I would choose D if I were you.

What is the inverse of the function f(x) = 2x – 10?

Answers

Answer:

The inverse f-1(x) = ( x + 10)/2.

Step-by-step explanation:

f(x) = 2x - 10

Find x in terms of f(x):

2x = f(x) + 10

x = (f(x) + 10))/ 2

Replace x by the inverse f-1(x) and f(x) by x:

f-1(x) = (x + 10)/2.


Which names are other ways to name Angle
2?
Select each correct answer

Answers

Answer:

when are you going to insert file?

A jacket costs $129.95. The sales tax rate is 8%. If prepresents the price of the jacket, and the sales tax rate, which TWO expression
represent the total cost of the jacket?
A) p+гр
B) P - 0.08
C)1.08p
D) (p-r)+p
E) 0.92p

Answers

Answer:

A and C

Step-by-step explanation:

A. P+rp would be 129.95+.08(129.95)=140.35

C 1.08p=1.08(129.95)=140.35

2. Quinton sold the most tickets in his school for the annual Autumn Festival. As a
reward, he gets to choose twice from a grab bag with tickets that say "free juice" or
"free notebook."

Answers

Answer:

I personally would choose the notebook

Step-by-step explanation:

How can $500 be divided between four people so that each person gets $20 more than the person before.

Answers

Answer:

$95, $115, $135, $155

Step-by-step explanation:

If the first person gets x dollars:

the next person gets 20 more, so x + 20 dollars

the next person gets x + 40 dollars

and the last person gets x + 60 dollars

We add all these allocations together, and we get $500

x + (x + 20) + (x + 40) + (x + 60) = 500

Combine like terms

4x + 120 = 500

Subtract 120 on both sides

4x = 380

Divide by 4 on both sides

x = 95

So the first person gets $95.

The second person must get $115

The third must get $135

And the fourth must get $155

Checking our work:

95 + 115 + 135 + 155 = 500

Find the equivalent equation that results from adding 5 to both sides first and then multiplying
both sides by 2. Show each step. You do not have to solve the equation at the end.

Answers

Answer:

5d = 30

Step-by-step explanation:

1. first you need to add 5 to both sides

   d-4+5 = 2+5

2. then you need to combine like terms

   d+1 = 7

3. after that you have to multiply both sides by 5

   5(d+1) = 7(5)

4. simplify

   5d + 5 = 35

         -5     -5

   5d = 30

In 2015, the city of Miami had a population of 441,000 people and an area of 36 square miles. What was the population density of Miami, in people per square mile, in 2015? 10,750 12,250 14,250 16,750​

Answers

Answer:

12,250

by dividing the 441000 by 36, I got the answer.

The population density of Miami, in people per square mile, in 2015 was 12,250

The given parameters are:

Population = 441,000 peopleArea = 36 square miles

The population density of a place is the ratio of the population to the unit square area.

So, we have:

[tex]Density=\frac{Population}{Area}[/tex]

Substitute known values

[tex]Density=\frac{441000}{36}[/tex]

[tex]Density=12250[/tex]

Hence, the population density of Miami, in people per square mile, in 2015 was 12,250

Read more about population density at:

https://brainly.com/question/13890769

please help me is for my homework​

Answers

Answer:

[tex]\frac{59}{100}[/tex]

Step-by-step explanation:

first divide 59 by 100

[tex]\frac{59}{100}[/tex]

now simplify

as u can see we can not simplify and it is the last stage so the answer will be

[tex]\frac{59}{100}[/tex]

What is 10x^2 times 9x^2

Answers

90x^4

..................

#39 only show work pls hurry tysm

Answers

Let earn per hour be x

The equation will be

[tex]\\ \sf\Rrightarrow 6.5(x)=42.25[/tex]

[tex]\\ \sf\Rrightarrow 6.5x=42.25[/tex]

[tex]\\ \sf\Rrightarrow x=\dfrac{42.25}{6.5}[/tex]

Sales Tax - You go to the store and purchase a shirt for $33.99, how much will you pay
after 8.25% sales tax.

Answers

Answer:

$95.17

Step-by-step explanation:

[tex] 33.99 \times 0.0825[/tex]

[tex] = 2.80[/tex]

[tex] 33.99 + 2.80[/tex]

[tex] = $95.17[/tex]

How do I solve this

Answers

Answer:

it's 67

Step-by-step explanation:

Step-by-step explanation:

the base is already same.

-9 + (-8) - (-7) = -10

= m^-10

Find the value of x that will make A||B.

Answers

Answer:

7

Step-by-step explanation:

By the definition of alternate interior angle:

3x-2=2x+5

3x-2x=5+2

x=7

Note:if you need to ask any question please let me know.

Answer:

x = 7

Step-by-step explanation:

since these are alternating interior angles, these two expressions will be = to each other

2x+5=3x-2

subtract the 2x from both sides

5=x-2

add the 2 to both sides

7=x

Solve: 2 3/4 ÷ 1 4/7=
Help?

Answers

Answer:

[tex] \frac{11}{7} [/tex]

Step-by-step explanation:

[tex]2 \frac{3}{4} \div 1\frac{4}{7} [/tex]

[tex] = 2 \frac{3}{4} \times \frac{4}{7} [/tex]

[tex] = \frac{11}{4} \times \frac{4}{7} [/tex]

[tex] = 11 \times \frac{1}{7} [/tex]

[tex] = \frac{11}{1} \times \frac{1}{7} [/tex]

[tex] = \frac{11 \times 7}{1 \times 7} [/tex]

[tex] = \frac{11}{1 \times 7} [/tex]

[tex] = \frac{11}{7} [/tex]

(3x2 – 5x + 6) + (2x2 + 7x - 9)

Answers

Answer:

Step-by-step explanation:

3x^2 + 2x^2 - 5x + 7x + 6 - 9

5x^2 + 2x - 3

Which equation represents a line which is perpendicular to the line y =
= -x - 72
6x - 5y = 30
Oby - 52 = 18
Submit Answer
O 6x + 5y = 20
O 5x + 6y = 42
PLS HELP ASAP

Answers

Answer:

[tex]5x + 6y = 42[/tex]

Step-by-step explanation:

Hope it is helpful....

Solve X/3 - 2X+1/3 = X-3/5​

Answers

Answer:

Answer is 3

Step-by-step explanation:

x/3-2x/1+3 =x-3/5

x/3-x/3 = x-3/5

0=x-3/5

0=x-3

3=x

sothat, x = 3 ans

Which of these is a factor in this expression?
624 – 4+9 (73 + 3)
O A. -4+9 (+ 3)
O B. (18+ 3)
O C. 624 – 4
O D. 9 (y2 + 3)
URGENT

Answers

Answer:

May be the ans is option C and A

21. Describe a real-life situation that can be modeled by an absolute-value equation
with the solutions x = 5 and x = 10.
Will give Brainly

Answers

The absolute value of a number returns the positive value of the given number. A real life situation that describes the scenario is:

"the point which a boy stands if the boy is standing 2.5 meters away from the 7.5 meters point."

Given that:

[tex]x = 5\ or\ x = 10[/tex]

An example of real life situation is as follows:

Calculate the point which a boy stands if the boy is standing 2.5 meters away from the 7.5 meters point.

Represent the point at which the boy stays with x. So, the situation is represented as:

[tex]|x - 7.5| = 2.5[/tex]

Remove absolute brackets

[tex]x - 7.5 = 2.5\ or\ x - 7.5 = -2.5[/tex]

Solve for x

[tex]x = 7.5+2.5\ or\ x = 7.5-2.5[/tex]

[tex]x = 10\ or\ x = 5[/tex]

Hence, the value of x is 5 or 10

Read more absolute values at:

https://brainly.com/question/1301718

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