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4 years ago

Geometry is hard. please help

Mathematics

1 answer:

Kryger [21]4 years ago

4 0

NCAA COURT- 288

School court- 278

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Estimate 3/5 x 6/7. Giving our brainiest!

mojhsa [17]

Answer:

Step-by-step explanation:

3/5 x 6/7 is 18/35. So if you divide 25 by 18 you get 1.9 rounded is basically 2.

5 0

3 years ago

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Please help! I need to multiply these with step by step work (x^2+2x+8)(x^2-x+1)

olga_2 [115]

Answer:

x^4+x³+7x²-6x+1

Step-by-step explanation:

(x²+2x+8)(x²-x+1)

distribute

x²(x²-x+1)

x^4-x³+x²

2x(x²-x+1)

2x³-2x²+2x

8(x²-x+1)

8x²-8x+1

x^4-x³+x²+2x³-2x²+2x+8x²-8x+1

combine like terms

x^4+x³+7x²-6x+1

4 0

3 years ago

Marcella bought 12/14 yards of ribbon. She uses 2 1/2 yards of ribbon for gift packages and 3 2/3 yards to tie balloons.

xenn [34]

Answer:

$6\frac{1}{12}\ yd$

Step-by-step explanation:

The correct question is

Marcella bought 12 1/4 yards of ribbon. She uses 2 1/2 yards of ribbon for gift packages and 3 2/3 yards to tie balloons.

How many yards of ribbon does Marcella have left?

we know that

To find out how many yards of ribbon Marcella has left, add up the yards of ribbon used for the gift packages plus the yards of ribbon used to tie the balloons. and subtract this result from the total yards of ribbon bought by Marcella

$12\frac{1}{4}-(2\frac{1}{2}+3\frac{2}{3})$

but first convert mixed number to an improper fractions

$12\frac{1}{4}=\frac{12*4+1}{4}=\frac{49}{4}$

$2\frac{1}{2}=\frac{2*2+1}{2}=\frac{5}{2}$

$3\frac{2}{3}=\frac{3*3+2}{3}=\frac{11}{3}$

substitute in the expression above

$\frac{49}{4}-(\frac{5}{2}+\frac{11}{3})$

$\frac{49}{4}-(\frac{5*3+2*11}{6})$

$\frac{49}{4}-(\frac{37}{6})$

$\frac{3*49-37*2}{12}$

$\frac{73}{12}\ yd$

Convert to mixed number

$\frac{73}{12}\ yd=\frac{72}{12}+\frac{1}{12}=6\frac{1}{12}\ yd$

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3 years ago

Brainiest and points!

Mekhanik [1.2K]

Answer:

$9^3$

Step-by-step explanation:

Rules Used

$a ^x \cdot a^y = a^{x+y}$

$\frac{b^x}{b^y} = b^{x-y}$

$\frac{9^6 \cdot 9^0 \cdot 9^4}{9^7} = 9^{6 + 0 + 4 -7} = 9^{10-7} = 9^3$

8 0

3 years ago

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A can of juice is 6 inches high, a base has a diameter of 4 inches . What is the volume of the can? Round to the nearest tenth

Blababa [14]

The answer will most likely be 25.1in^3

6 0

3 years ago