2 years ago

Mallory bought a pizza and sodas for her birthday party. If she spent

Mathematics

1 answer:

Kruka [31]2 years ago

8 0

Answer:

She had 7 pizzas.

Step-by-step explanation:

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The formula s= SA/6 squared gives the length of the side, s, of a cube with a surface area, SA. How much longer is the side of a

stiv31 [10]

The surface area (SA) of a cube can be written as:

SA = 6s²

From here we can write, the length of the side s as:

$s= \sqrt{ \frac{SA}{6} }$

For cube with surface area of 1200 square inches, the side length will be:

$s= \sqrt{ \frac{1200}{6} }=10 \sqrt{2}$ inches

For cube with surface area 768 square inches, the side length will be:

$s= \sqrt{ \frac{768}{6} }=8 \sqrt{2}$ inches

The difference in side lengths of two cubes will be:

$10 \sqrt{2} -8 \sqrt{2}=2 \sqrt{2}$

Rounding to nearest tenth of an integer, the difference between the side lengths of two cubes will be 2.8 inches.

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2 years ago

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H(a)=2a+4 <br> g(a)-2a^2+2 <br> find (h+g)(a+3)

Lunna [17]

Answer:

hello :

(g/f)(3) = g(3)/f(3)

but : g(3) =3(3)+2 = 11

f(3) 2(3)-4 = 2

g/f)(3) = 11/2

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2 years ago

Simplify the expression -4x2(3x − 7).

FromTheMoon [43]

Answer:

-12x^3 + 28x^2

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3 years ago

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Solve for x 11x-7= 3x+9

elixir [45]

Answer: x=2

Step-by-step explanation:

first subtract 3x from both sides

then your equation will be 8x-7=9 then you will add 7 to both sides getting 8x=16 then divide both sides by 8 and x=2

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3 years ago

Six less than the product of four and a number x. Can someone Help PLS <br>

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Answer:

4x - 6

Step-by-step explanation:

6 less is -6

product of four and a number x is 4x

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2 years ago