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3 years ago

Pls help due tonight. BRIANLIEST IF CORRECT. Prob easy tho.

Mathematics

1 answer:

vodka [1.7K]3 years ago

7 0

Find two numbers that multiply to be 20 and add up to be -12. The question

5 x 4 = 20

2 x 10 = 20

20 + -32 = -12

good luck!!!

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The circumference of a circle is 62.8 centimeters. What is the circle's radius?

Kobotan [32]

Hello!

To solve this exercise, we must use the formula below:

$\mathrm{C=2\cdot\pi\cdot r}$

C = 62.8cm
π = 3.14
r = ?

Knowing these values, let's replace them in the formula to obtain r:

$\mathrm{62.8=2\cdot\ 3.14\cdot r}\\\mathrm{62.8=6.28r}\\\mathrm{6.28r=62.8}\\\\\mathrm{r=\dfrac{62.8}{6.28}}\\\\\boxed{\mathrm{r=10}}$

So, the radius of this circle is 10cm.

Hope this helps!

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2 years ago

Sketch a system of linear equation whose solution is (3,6)

Ilya [14]

Answer: x+y = 9, 2x+3y = 24

Step-by-step explanation:

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3 years ago

Find the sum of the geometrical equation -3 , 18 , -108 , if there are 7 terms

harina [27]

Hello from MrBillDoesMath!

Answer:

Sum = -119,962 ( I hope!)

Discussion:

Let's determine the pattern.

first term: -3

2nd term: (-3) * (-6) = 18 (multiply first term by -6)

3rd term: (18) * (-6) = -108 (multiply 2nd term by -6)

4th term : (-108)*(-6) = 648 ( etc)

5th term : (648)*(-6) = -3888 (etc)

6th term : (-3888)*(-6) = 23328 (etc)

7th term: (23328)*(-6) = -139967 (etc)

Sum = -119,962

A simpler way to do this is to use the formula for the sum of a geometric series to n terms. The series is

-3 Sum ( -6)^n n = 0, 1, 2, 3, 4, 5, 6

Regards,

MrB

P.S. I'll be on vacation from Friday, Dec 22 to Jan 2, 2019. Have a Great New Year!

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3 years ago

The function graphed below models the revenue of a company as a function of the price of their product. Approximately what price

givi [52]

Answer:

C. as the revenue goes down it slowly increases causing it to keep on increasing i picked c because it is the best answer

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3 years ago

ABCD is a rectangle. What is the value of x? (1 point)

Nookie1986 [14]

Answer: The value of X is unknown

Step-by-step explanation: X doesn’t do anything with points ABCD on a rectangle, unless there is a picture. Where is the picture if there is suppose to be one?

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3 years ago

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