2 years ago

Which expression is equivalent to 18 − 20?

1 answer:

6 0

The answer is 18+(-20) because if if you were going to solve that equation you would use the absolute value of -20 and then the opposite of the sign giving you 18-20. Hope this helps:)

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Find the solutions to x^2=27 A x= +/- 9 √3 B x= +/- 3 √9 C x= +/- 3 √3 D x= +/- 9 √2 FIRST TO ANSWER CORRECTLY GETS BRAINLIEST :

Brilliant_brown [7]

Answer:

The answer is C.

Step-by-step explanation:

You have to square both sides :

${x}^{2} = 27$

$x = ± \sqrt{27}$

Then, you have to simplify it :

$x = ± \sqrt{9 \times 3}$

$x = ±( \sqrt{9} \times \sqrt{3} )$

$x = ±( 3 \times \sqrt{3} )$

$x = ±3 \sqrt{3}$

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2 years ago

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(No links please) I’ll mark Brainlyst

statuscvo [17]

18 bags of sand will be needed

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2 years ago

What is the solution to this equation? 9^x – 1 = 2 A. 1 B. 2 C. -1/2 D. 1/2

choli [55]

Answer:

Step-by-step explanation:

7 0

2 years ago

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The first term in a sequence is 84. The pattern follows the rule add 24. What are the next four terms?

weqwewe [10]

Answer: 108, 132, 156, and 180

Step-by-step explanation:

If you need to add 24 to the first term for the next 4 terms, you would have

84 + 24 = 108

108 + 24 = 132

132 + 24 = 156

156 + 24 = 180

So your sequence would be 108, 132, 156, and 180 for the next 4 terms.

5 0

2 years ago

In the regular pentagon below, if AP = 4 m and BC = 10 m, find it's area.

12345 [234]

First symmetrically cut the pentagon to get 5 pieces. (So that you will get the idea that this polygon is divided into 5 triangles)

Then find the area of one of the triangles:

Area of Triangle = $\frac{1}{2} bh$

A = $\frac{1}{2}$ × 4 × 10

A = 20 m²

To find the area of the whole pentagon shape:

A = 20 × 5 = 100 m²

Hope it helps!

4 0

1 year ago