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1 year ago

PLEASE HELP find value of X x^2 = 9, x = ?

Mathematics

2 answers:

bulgar [2K]1 year ago

7 0

Answer:

Step-by-step explanation:

x^2 means squared

to get x you need to get the square root of 9

which is

siniylev [52]1 year ago

5 0

${x}^{2} = 9 \\ \\ x = \sqrt{9} \\ \\ x = \sqrt{3 \times 3} \\ \\ x = 3$

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5 Victor knows that 2 + 7 = 7+2 and 2•7= 7•2

Romashka [77]

Answer:2^7 ≠ 7^2

Step-by-step explanation:

2^7 = 2 * 2 * 2 * 2 * 2 * 2 * 2

The only factor is 2

7^2 = 7 * 7

The only factor is 7

Comparing the factors when written as a repeated multiplication,

2^7 and 7^2 have no common factor :

2^7 = 2 * 2 * 2 * 2 * 2 * 2 * 2 = 128

7^2 = 7 * 7 = 49

6 0

3 years ago

Find the area of a circle with diameter 12 cm.

luda_lava [24]

Answer:

113.04 cm.

Step-by-step explanation:

Step 1: Formula/explain

To find the area of a circle, multiply the radius by itself twice, then multiply the product pi.

$a=\pi r^2(3.14*radius*radius)$

Step 2: Solve

According to the word problem, the circle has a diameter of 12. This means it has a radius of 6.

Now, we plug the numbers into formula.

$\pi 6^2 (3.14*6*6)=113.04$

Step 3: Conclude

Therefore, the area of this circle is 113.04 cm.

3 0

2 years ago

The perimeter of a rectangle is 46in and the diagonal is 17 in

dmitriy555 [2]

Answer + explaination

p=2*(L+l)=46

L+l=46:2

L+l=23

(L+l)^2=529

(L^2+l^2)+2l*L=529

D= V L^2+l^2= 17

L^2+l^2=289

so 289+2l*L=529

2l*L=529-289=240

l*L=240:2

A=120

4 0

2 years ago

8x+12=4(3+2x) Show your work please

marysya [2.9K]

Answer:

8x + 12 = 12 + 8x

0 = 0

Step-by-step explanation:

Distribute then simplify

7 0

3 years ago

Read 2 more answers

Kisachek [45]

Answer:

4000g

Step-by-step explanation:

7 0

2 years ago