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Ilya [14]
3 years ago
9

Use the remainder theorem to find the remainder for

Mathematics
1 answer:
solong [7]3 years ago
7 0

Answer:

0

Step-by-step explanation:

The remainder theorem says when you are dividing P(x) by (x-c), then the remainder is P(c).

So we need to evaluate x^2+2x-15 for x=3.

3^2+2(3)-15

9+6-15

15-15

0

So the remainder is 0.

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Hey i need help with a test score!!
Lapatulllka [165]

Ok, so I'm pretty sure you get it by just dividing 168 by 182 to get 0.923 etc. Then if you multiply it by 100 then you get your grade. Which is about a <em>92.3%</em>. Hope this helps.

4 0
4 years ago
A restaurant recorded the number of green salads ordered during lunchtime for five weekdays.
Tju [1.3M]
To find the mean add all the numbers and dived by the number of numbers. So 15 + 23 + 14 + 17 + 21 = 90 / 5 =  18. The mean is 18.
4 0
3 years ago
The interest rate r required to increase your investment p to the amount a in t years is found by . Find the interest rate r for
Dahasolnce [82]

Answer:

The interest rate was of 0.1173 = 11.73%.

Step-by-step explanation:

This is a simple interest problem.

The simple interest formula is given by:

E = P*I*t

In which E is the amount of interest earned, P is the principal(the initial amount of money), I is the interest rate(yearly, as a decimal) and t is the time.

After t years, the total amount of money is:

A = E + P

In this problem, we have that:

A = 10000, P = 8100, t = 2

So

A = E + P

10000 = E + 8100

E = 1900

So

1900 = 8100*I*2

I = \frac{1900}{8100*2}

I = 0.1173

The interest rate was of 0.1173 = 11.73%.

7 0
3 years ago
Hannah made a ramp for her grandfather who was in a wheelchair. The ramp was 10 ft long and it was 5 ft away from the porch step
lianna [129]

Given :

Length of ramp( Hypotenuse ), l = 10 ft .

Length of base, b = 5 ft .

To Find :

How high were the porch steps.

Solution :

Let, height is h.

By Pythagoras theorem :

b^2+h^2=l^2\\\\h=\sqrt{l^2-b^2}\\\\h=\sqrt{10^2-5^2}\\\\h = \sqrt{75}\\\\h = 5\sqrt{3}\ ft

Hence, this is the required solution.

3 0
3 years ago
in 2010 the population of rhode island was approximately 1053000. if the population decrease was 0.3% find the population of rho
maks197457 [2]
1049841 1053000x.003=3159 1053000-3159=1049841
4 0
3 years ago
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