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2 years ago

Determine if the following expressions are equivalent. If so, by what property are they equivalent.

Mathematics

1 answer:

jeka942 years ago

5 0

Answer:

C. Yes, by distributive property

Step-by-step explanation:

Distributive property states that 3 can be distributed to all of the terms inside of the parentheses, namely x and -2. 3x + 3(-2) = 3x-6

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Expand -7(g-8)<br> I will give brainiest

PSYCHO15rus [73]

Answer:

-7g + 56

Step-by-step explanation:

-7 (g - 8)

-7 × g + -7 × 8

-7g + 56

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2 years ago

20 < k + 18 The solution of the inequality is<br><br> There is no answer choice

Kazeer [188]

Answer:

2<k

Step-by-step explanation:

20 < k + 18

20 - 18 < k + 18 - 18

2<k

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2 years ago

Special parallelograms

Elza [17]

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3 years ago

New York City is located about 40˚ north of the equator. If Earth's radius is about 4000 miles, approximately how many miles sou

qwelly [4]

Answer:

The answer is "2793 miles"

Step-by-step explanation:

In this firstly we convert degrees to radians, which can be defined as follows:

$\to \theta =\frac{40^{\circ} \times \pi }{180^{\circ}}$

$=\frac{ 2\pi }{9}$

Now calculating the distance:

$=\frac{2\pi }{9} \times 4000\\\\= \frac{8000 \pi }{9}$

$=\frac{8000\times 3.14 }{9}\\\\ = \frac{25120}{9}\\\\=2793 \ miles$

4 0

2 years ago

Subtract. Your answer should be a polynomial in standard form. a (4r ^ 2 - 3r + 2) - (- r ^ 2 - 3r) =

blsea [12.9K]

Answer:5r2+2

Step-by-step explanation:

Distribute the Negative Sign:

=4r2−3r+2+−1(−r2−3r)

=4r2+−3r+2+−1(−r2)+−1(−3r)

=4r2+−3r+2+r2+3r

Combine Like Terms:

=4r2+−3r+2+r2+3r

=(4r2+r2)+(−3r+3r)+(2)

=5r2+2

6 0

3 years ago