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3 years ago

Pls answer this for me, this is the remainder theorem for grade 9 so help me.

1 answer:

3 0

1) Let f(x) be x^3+5x^2+2x+1
Since f(x) is divided by x+1,
R= f(-1) = (-1)^3 + 5(-1)^2+2(-1) + 1
= -1+5-2+1
= 3
2) Let f(x) be x^3 - 6x + 5x +2
Since f(x) is divided by x-5,
R= f(5) = x^3 - 6x^2 + 5x +2
= 5^3 - 6(5)^2 + 5(5) +2
= 125 - 150 + 25 + 2
= 2

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Find the circumference of a circle with an area of 530.93

HACTEHA [7]

A = π r^2
r^2 = A/π
r^2 = 530.93 / 3.14
r^2 = 169.08
r = 13

C = 2 π r
C = 2 (3.14)(13)
C = 81.64

answer
81.64 m

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3 years ago

If 3 dogs were 2 ft and 4 were 5 what would be the total height of all of them together

seraphim [82]

Answer:

26 i think

Step-by-step explanation:

since the 3 dogs are 2 feet tall you would multiply them then multiply 4 by 5 and get 20 and 3x2 is 6 you add it up and get 26

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3 years ago

Read 2 more answers

Can yall help me with this pls

Katyanochek1 [597]

Its the third answer, how much gas he has after one hour

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2 years ago

Please help im stuck on this question! :)

nydimaria [60]

Answer:

The answer is 6 (:

Step-by-step explanation:

88-4=84

8+6=14

84 divied by 14= 6

hope this helps! <3

7 0

3 years ago

How do I solve this literal equation? 15 points

kati45 [8]

Answer:

$\pi = \frac{A}{2r^2 + 2rh}$

Step-by-step explanation:

First, we need to isolate $\pi$ by taking it common from both terms on the right:

$A=2\pi r^2 + 2\pi rh\\A=\pi (2r^2 + 2rh)$

Now, since we want $\pi$ in terms of the other variables, we can divide the left hand side (A) by whatever is multiplied with $\pi$ on the right hand side. Then we will have an expression for $\pi$ . Shown below:

$A=\pi (2r^2 + 2rh)\\\pi = \frac{A}{2r^2 + 2rh}$

This is the xpression for $\pi$

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3 years ago