3 years ago

This one is hard can some body help me

Mathematics

1 answer:

natali 33 [55]3 years ago

5 0

First option because 3 x 10^9 is 3,000,000,000

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4y = 9x - 21<br> y = x-4

Anastaziya [24]

Answer:

x = 1

y = -3

Step-by-step explanation:

if y = x - 4

then reorganise the first equation

4 (x - 4) = 9x -21

4x - 16 = 9x - 21

5 = 5x

x = 1

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3 years ago

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Spencer made a quilt for his cousin's doll. The quilt had a 7x7 array of different color square patches. If each patch is 1 3/4

Damm [24]

Answer:

$\frac{2401}{16}$ square inches

Step-by-step explanation:

Given:

The quilt made by Spencer had a 7×7 array of different color square patches such that each patch is $1\frac{3}{4}$ in long.

To find: the area of the whole quilt

Solution:

Side of each quilt = $7(\frac{3}{4})=7(\frac{7}{4})=\frac{49}{4}$

Quilt is in the form of a square such that area of square is given by $(side)^2$

Therefore, area of quilt = $(side)^2=(\frac{49}{4})^2 =\frac{2401}{16}$ square inches

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3 years ago

Which shows another way to write 4 to the sixth power?

geniusboy [140]

A) 6 x 6 x 6 x 6

Hope this Helps!!

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3m-n=km-8, solve for m

viktelen [127]

Add n on both sides:

3m = km - 8 + n

Subtract km on both sides:

3m - km = n - 8

Factor the Left-Hand Side:

m(3 - k) = n - 8

Divide both sides by (3 - k):

m = (n - 8) / (3 - k)

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3 years ago

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Why are there so many songs about rainbows

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Answer:

Step-by-step explanation:

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