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3 years ago

9

if workers were able to pave 1/3 of your driveway in 40 minutes if they work at same rate what portion of driveway will they pav

e in one hour

1 answer:

Dafna1 [17]3 years ago

5 0

40min is 1/3
implies 20min is 1/6
60min is 1/3+1/6=3/6=1/2

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1. Find p(-3) if p(x) = 4x3 - 5x2 + 7x - 10

SVETLANKA909090 [29]

Answer:

1) -184

2) 13 $(m^{4}) ^{2}$ -3( $m^{4}$ )+4

Step-by-step explanation:

For problem number 1, Let's start by substituting all the x's for -3

So the equation will look like

p(-3)= $4(-3)^{3}$ - $5(-3)^{2}$ +7(-3)-10

Now, lets simplify by solving the exponents

First we'll do $-3^{3}$ which equals -27

Now we'll do $-3^{2}$ which equals 9

So now our equation looks like

p(-3)=4(-27)-5(9)+7(-3)-10

Now, we are going to multiply all these numbers

First 4(-27) which equals -108

Now -5(9) which equals -45

And finally 7(-3) which equals -21

Now our equation looks like

p(-3)= -108-45-21-10

Now we can solve

-108-45-21-10=-184

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95

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2 years ago

Check my answers? 15 points to whomever answers.

vova2212 [387]

38, 20, 12, 2, 1 and 4 only.

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