2 years ago

The diameter of a circle is 26 miles. what is the circle's circumference. Use 3.14 for pi

Mathematics

1 answer:

12345 [234]2 years ago

7 0

Answer:

81.68

Step-by-step explanation:

The radius is half the diameter so the radius is 13. 13 times pi times 2 equals 81.68.

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Give triangle abc is congruent to triangle def find x

Karolina [17]

Answer:

x=9

Step-by-step explanation:

FE is 3x-7

since ΔABC≅ΔDEF the equivalent of FE is CB, or BC...which is 20

3x-7=20

3x=27

x=9

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2 years ago

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Kisachek [45]

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2 years ago

Solve the system of equations - 8x - 5y = -13 and - 4x – 5y = 11 by<br> combining the equations.

Citrus2011 [14]

Answer:

(6,-7)

Step-by-step explanation:

subtract them:

-8x - 5y = -13

-4x - 5y = 11

you get

-4x = -24

so x = 6

plug x into the second equation:

-24 - 5y = 11

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so your solution is (6,-7).

4 0

3 years ago

Read 2 more answers

Solve for the unknown quantity of x<br> 15/2= 60/x

grin007 [14]

Answer:

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3 0

3 years ago

Nth term to 4 1 -2 -5 -8

AURORKA [14]

4 - 3 = 1

1 - 3 = -2

-2 - 3 = -5

-5 - 3 = -8

It's the arithmetic sequence.

$a_n=a_1+(n-1)d$

$a_1=4,\ d=-3$

substitute

$a_n=4+(n-1)(-3)=4-3n+3=-3n+7$

Answer: $a_n=-3n+7$

7 0

2 years ago