3 years ago

Please will give brainliest and thanks

Mathematics

2 answers:

Paraphin [41]3 years ago

7 0

Answer:

Kahn academy works great with this stuff

Step-by-step explanation:

DerKrebs [107]3 years ago

4 0

Answer:

1- 9/7n

Step-by-step explanation:

1/7-9/7n+6/7=1-9/7n

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Circle F is centered at the origin. Is point (7, -7) on the circle?

scoundrel [369]

Your answer is not correct.

The correct answer is the third one:

-No, because the distance from the origin to point (7,-7) is greater than the radius of the circle.

6 0

3 years ago

What is the number of sides of a regular n gon if one of the extierior angles is 40 degrees?

sertanlavr [38]

Sum of all exterior angles = 360°

Size of one exterior angle = 40°

Number of sides = 360 ÷ 40 = 9

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Answer: There are 9 sides to this polygon.
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3 years ago

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valentinak56 [21]

Step-by-step explanation:

$\huge \: 2 \sqrt{x} .4 {x}^{ - \frac{5}{2} } \\ \\ \huge \: = 2.4 {x}^{ \frac{1}{2} } . {x}^{ - \frac{5}{2} } \\ \\ \huge \: = 8 {x}^{ \frac{1}{2} - \frac{5}{2} } \\ \\ \huge \: = 8 {x}^{ \frac{1 - 5}{2} } \\ \\ \huge \: = 8 {x}^{ - \frac{4}{2} } \\ \\ \huge \: = 8. {x}^{ - 2} \\$