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3 years ago

Solve x^2 = 144.A. 72 B. 12C. +12D. -12

Mathematics

2 answers:

Vladimir79 [104]3 years ago

5 0

B. 12

Ex: 12 squared is 144

Jey

2 years ago

i got it wrong on my test

Mandarinka [93]3 years ago

3 0

Answer: 12

Step-by-step explanation:

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How many solutions can be found for the linear equation? 4(x + 5) - 5 = 8x + 18/ 2

mylen [45]

Answer: The correct option is A.

Explanation:

The given equation is,

$4(x+5)-5=\frac{8x+18}{2}$

Multiply both sides by 2.

$2[4(x+5)-5]=\frac{8x+18}{2}$

$8(x+5)+2(-5)=8x+18$

$8x+40-10=8x+18$

$8x+30=8x+18$

Subtract both sides by 8x.

$30=18$

This statement is false for any value of x, therefore the system of equation have no solution and option A is correct.

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3 years ago

Read 2 more answers

If an angle measuring 20 is bisected to form two new angles, what is the measure of each new angle

alexgriva [62]

Answer:

10 degrees

Step-by-step explanation:

Bisection means dividing into two equal parts

So, if we bisect an angle measuring 20 degrees

It will divide into 2 equal parts and:

=> 20/2 = 10 degrees

Two angles of 10 degrees will be formed.

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2 years ago

Circle X with a radius of 6 units and circle Y with a radius

asambeis [7]

Answer:

Option C.

Step-by-step explanation:

It is given that radius of circle X is 6 units and radius of circle Y is 2 units.

Here, circle Y is smaller and circle X is larger.

$\text{Scale factor}=\dfrac{\text{Radius of circle X}}{\text{Radius of circle Y}}$

$\text{Scale factor}=\dfrac{6}{2}$

$\text{Scale factor}=3$

If we translate the circles so they share a common center point, and after that we dilate circle Y by a scale factor of 3, then we get circle which is equal to circle X.

We know that, after dilation the figure and its image are similar.

Hence, we can say that both circles are similar.

Therefore, the correct option is C.

8 0

2 years ago

How do i solve for n in this problem -6n - (3n - 9) + 5n = -4 (2n - 8)

DaniilM [7]

Answer:

-6n -(3n - 9) + 5n = -4 (2n - 8)

-6n -3n +9 +5n = -8n +32

-9n +5n +9 = -8n +32

-4n + 9 = -8n +32

8n - 4n = 32 - 9

4n = 23

n = 23/4 = 5.75

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2 years ago

A person invest 7500 dollars in a bank. The bank pays 6 interest compounded semi-annually. To the nearest tenth of a year,how lo

Kamila [148]

Answer:

Step-by-step explanation:

I clicked see solution

T=5 years

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2 years ago

Solve x^2 = 144.A. 72 B. 12C. +12D. -12​

Solve x^2 = 144.A. 72 B. 12C. +12D. -12