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2 years ago

If x=3 then x^2=9. true or false?

Mathematics

2 answers:

rewona [7]2 years ago

7 0

Answer:

if you mean x times 2 equals nine then false if you mean x to the power of two then true.

Step-by-step explanation:

MA_775_DIABLO [31]2 years ago

5 0

Answer:

True

Step-by-step explanation:

x^2 = 9

if 3 is x then it is ???

3^2 = 3 x 3 = 9

if 3 is x then it is true

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Plz hurry!!!! thank you!!!!

RoseWind [281]

Answer:

$m\angle KLM=53.13^o$

Step-by-step explanation:

see the attached figure to better understand the problem

step 1

Find the measure of angle KOM

In the triangle KOM

we have

$KO=MO=r=5\ units$

$KM=8\ units$

Applying the law of cosines

$8^2=5^2+5^2-2(5)(5)cos(KOM)$

$64=50-50cos(KOM)$

$50cos(KOM)=50-64$

$50cos(KOM)=-14$

$cos(KOM)=-14/50$

$m\angle KOM=cos^{-1}(-14/50)$

$m\angle KOM=106.26^o$

step 2

Find the measure of the arc KM

we know that

$arc\ KM=m\angle KOM$ ----> by central angle

we have

$m\angle KOM=106.26^o$

$arc\ KM=106.26^o$

step 3

Find the measure of angle KLM

we know that

The inscribed angle is half that of the arc comprising

$m\angle KLM=\frac{1}{2}[arc\ KM]$

we have

$arc\ KM=106.26^o$

substitute

$m\angle KLM=\frac{1}{2}[106.26^o]$

$m\angle KLM=53.13^o$

7 0

2 years ago

A bag contains 5 red blocks, 7 yellow blocks, and 8 green blocks. What is the ratio of green blocks to total blocks? Choose all

zysi [14]

Answer:

Step-by-step explanation:

Total: 20 blocks

Green: 8

8/20

Please mark as Brainliest! :)

Have a nice day.

3 0

2 years ago

Read 2 more answers

Solve for x: 3x+7 = 22 *

Lorico [155]

3x+7=22
Subtract 7 to both sides
3x=15
Divide by 3
x=5

4 0

2 years ago

Read 2 more answers

write an enaquality that expresses the reason the lengths 5 feet , 10 feet and 20 feet could not make a triangle. explain how th

NikAS [45]

For any triangle, the 2 shortest sides added together have to be longer than the longest sides.

short side (10) + short side (5) needs to be greater than (>) longest side (20)

10 + 5 > 20

15 > 20

This inequality is incorrect, so the lengths cannot make a triangle.

Hope this helps :)

7 0

2 years ago

In a right triangle,the two sides adjacent to the right angle are known as the what? Or and

PIT_PIT [208]

Answer:

Opposite and hypotenuse

Step-by-step explanation:

In a right triangle,the two sides adjacent to the right angle are known as the opposite and the hypotenuse

3 0

2 years ago