3 years ago

HI CAN SOMEONE PLEASE HELP ME ON THIS ASAPPP , FIND EF AND THEN GE

Mathematics

1 answer:

Feliz [49]3 years ago

6 0

The answer is b. 12

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Multiply -c^2(3c-2) apply distributive property and multiply

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Answer:

$\large\boxed{-c^2(3c-2)=-3c^3+2c^2}$

Step-by-step explanation:

$-c^2(3c-2)\qquad\text{use the distributive property}\ a(b+c)=ab+ac\\\\=(-c^2)(3c)+(-c^2)(-2)\\\\=-3c^3+2c^2$

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3 years ago

A necklace and earrings cost $144. Six necklaces and five pairs of earrings cost $825

hram777 [196]

Step-by-step explanation:

let necklace : x

let earrings : y

x+y=144 -1st eqn

6x+5y=825 -2nd eqn

y=144-X -3rd eqn

substitute eqn into 2nd eqn

6x+5(144-x)= 825

6x +720-5X =825 (expanded)

X = 825-720

X =105

substitute "X=105" into 1st eqn

(105)+y=144

y= 144-105

y=39

1 necklace = 105$

1 pair of earrings = 39$

(to check back: substitute the value into the original eqn)

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3 years ago

A construction crew has just finished building a road. The road is 10 5/6 kilometers long. If the crew worked for 5 days, how ma

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Answer:

Step-by-step explanation:

10 5/6 km...in 5 days

(10 5/6) / 5 =

(65/6) / 5 =

65/6 * 1/5 =

65/30 =

2 1/6 kilometers per day <===

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4 years ago

He had to wait 1 hour and 45 minutes at the airport in San Francisco. Then Frank

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Step-by-step explanation:

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On the coordinate plane, point P is located at (3, y) and point Q is located at (1, -4). The distance between

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y = 23, -31

Step-by-step explanation

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3 years ago