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2 years ago

Simplify -7y(4-y) plz also include explanation

Mathematics

1 answer:

Lana71 [14]2 years ago

6 0

Use distributive property
-28y+8y= -20y

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PLEASE HELP PLEASE HELP

deff fn [24]

Answer:

D -- Triangular prism

Step-by-step explanation:

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7 0

1 year ago

david is drinking a sports drink that us 24 ounces. he drinks 3 ounces in 5 minutes what percentage of the sports drink will dav

adoni [48]

Answer:

18 ounces

Step-by-step explanation:

5 x 6= 30

3 x 6= 18

8 0

2 years ago

Carol wants to make a quilt using a scale of 1.5 inches=2 feet. Her scale drawing is 7.5 inches by 10.5 inches. What is the area

cestrela7 [59]

Answer:

140 ft

Step-by-step explanation:

7 0

2 years ago

A conservative estimate of the number of stars in the universe is 6 x 10^22. The average human can see about 3,000 stars at nigh

Ilia_Sergeevich [38]

$2 \times 10^{19}$ times more stars are there in universe compared to human eye can see

<h3><u>Solution:</u></h3>

Given that, conservative estimate of the number of stars in the universe is $6 \times 10^{22}$

The average human can see about 3,000 stars at night with only their eyes

To find: Number of times more stars are there in the universe, compared to the stars a human can see

Let "x" be the number of times more stars are there in the universe, compared to the stars a human can see

Then from given statement,

$\text{Stars in universe} = x \times \text{ number of stars human can see}$

<em><u>Substituting given values we get,</u></em>

$6 \times 10^{22} = x \times 3000\\\\x = \frac{6 \times 10^{22}}{3000}\\\\x = \frac{6 \times 10^{22}}{3 \times 10^3}\\\\x = 2 \times 10^{22-3}\\\\x = 2 \times 10^{19}$

Thus $2 \times 10^{19}$ times more stars are there in universe compared to human eye can see

5 0

3 years ago

Kelly used 3 2/9 packs of notebook paper in the first 1/6 of the year. At what rate is Kelly using notebook paper.

Makovka662 [10]

Answer:

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4 0

2 years ago