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4 years ago

1. Which expression is equivalent to (–2)(a + 6)? (1 point)

2 answers:

8 0

1.
-2(a + 6) = -2 · a - 2 · 6 = -2a - 12

2.
-22:
whole numbers
rational numbers
integers

3.
6 · (b - p) = 6(b - p)

4.
[5(14 - 2)²]/2 = (5 · 12²)/2 = (5 · 144)/2 = 720/2 = 360

5.
u + xy
u = 18; x = 10; y = 8, subtitute

18 + 10 · 8 = 18 + 80 = 98

6.
A = 479 ft²;
a - length of a side
A = a²
therefore
a² = 479 ⇒ a = √479 ⇒ a ≈ 21.886 ⇒ 22 (ft)

7.
(7 + 5) + 4 · 13 - 2 = 12 + 52 - 2 = 64 - 2 = 62

lara31 [8.8K]4 years ago

3 0

1. C

2. B,C

3. B

4.D

5. C

6. A = 479 ft²;

A = a²

a² = 479 ⇒ a = √479 ⇒ a ≈ 21.886 ⇒ 22 (ft)

100% SURE YOU GET 6/6 OR MORE

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Step-by-step explanation:

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Make n the subject of the formula

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Answer:

$\mathsf{ \frac{m + 21}{5} = n }$

Step-by-step explanation:

To make "n" the subject of the formula, rearrange the formula so it begins with " n = "

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There's also a 5 attached to n, that means the multiplication of n with 5, the inverse of multiplication is division, so dividing both sides of the equation by 5

$\mathsf{ \frac{m + 21}{5} = n }$

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