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gavmur [86]
3 years ago
5

Please help me please

Mathematics
1 answer:
Lerok [7]3 years ago
4 0

Answer: circumference: 22π  area: 121π

Step-by-step explanation:

area of a circle is \pi r^2

circumference is 2\pi r

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C.is decrease by 1 foot every 500 miles D. Is decrease by 1 foot every 1000 miles
Tasya [4]

Answer:

Option A

Step-by-step explanation:

Slope of a line passing through two points (x_1,y_1) and (x_2,y_2) is given by,

Slope = \frac{y_2-y_1}{x_2-x_1}

Line shown in the graph is passing through two points (2, 8000) and (4, 7000).

Therefore, slope of the given line = \frac{8000-7000}{2-4}

                                                        = -500 feet per mile

Which means, altitude decreases by 500 ft every mile.

(Negative sign represents the decrease)

Option A is the correct option.

4 0
3 years ago
In a class of 22 students, 15 play an instrument and 11 play a sport. There are 9
ollegr [7]

Answer:7/22

Sorry I don’t know how to explain.But here the answer.

Hope this helped!

Have a great day!

6 0
2 years ago
If DF = 170, find the value of x. Then find DE and EF.<br> DE=3x + 20<br> EF=2x + 40
Julli [10]

9514 1404 393

Answer:

  DE = 86

  EF = 84

Step-by-step explanation:

We assume that point E lies on segment DF, so that ...

  DE + EF = DF

  (3x +20) +(2x +40) = 170

  5x = 110 . . . . . . . . . . . . . . . collect terms, subtract 60

  x = 22 . . . . . . . . . . . . divide by 5

  DE = 3×22 +20 = 66 +20 = 86

  EF = 2×22 +40 = 44 +40 = 84

7 0
3 years ago
Set a = 3 and k = 1. Use the slider to manipulate M. What happens to the graph when M is negative?
ANEK [815]

Answer:

C (reflection across the x access)

Step-by-step explanation:

I got it right on edge

5 0
3 years ago
What is the greatest ten you can multiply by 2 to get close to but not over 58?
ExtremeBDS [4]

Answer:

20

Step-by-step explanation:

20 x 2 =40

40 is under 58 and the closest to 58

the next 10 is 30 and 30 x 30 is over 58 with 60

3 0
2 years ago
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