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sweet [91]
3 years ago
15

The formula for the circumference

Mathematics
1 answer:
Marina CMI [18]3 years ago
4 0

Answer:

2πr or πd

Step-by-step explanation:

Where

π= pi

r= radius of the circle

d= diameter of the circle

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Which rule represents Ro, 180º?
Ksju [112]

Answer: (x, y) = (-x, -y)

Step-by-step explanation:

To solve this, you can match the coordinates of points on the triangles and choose the correct answer from there.

The highest point on the triangle, S, has coordinates of (3, 5).

The reflected triangle's point S has coordinates of (-3, -5).

Point Q on the triangle has coordinates of (1, 0)

Point Q on the reflected triangle has coordinates of (-1, 0).

Matching these two points and their reflections to the answers, the only answer that fulfills both points correctly is (x, y) = (-x, -y).

5 0
3 years ago
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Plzz helpp guys
Kitty [74]

Answer:

y = 1500(0.024)^t

Step-by-step explanation:

Given

a = 1500km -- initial area

b = 2.4\% -- rate

t = time --- (years)

Required

Represent as an exponential function

An exponential function has the form:

y = ab^t

Where

a = initial\ value

b = rate and b \ne 1

t= time

Substitute values for a and b, we have:

y = 1500 * (2.4\%)^t

Convert percentage to decimal

y = 1500 * (0.024)^t

y = 1500(0.024)^t

Hence, the exponential function that represents the scenario is: y = 1500(0.024)^t

6 0
3 years ago
Three eighths of the 32 children in the club were girls. <br> How many boys were in the club?
vivado [14]

Answer:

20

Step-by-step explanation:

3/8* 32= 12

32-12=20

12 Girls

20 Boys

8 0
3 years ago
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I surveyed students in my Math II classes to see how many hours of television they watched the night before our big test on tria
dangina [55]
Dependent variable would be the test scores, because they DEPEND on the amount of TV you watched
7 0
3 years ago
100 PNTS AND BRAINLIST FOR CORRECT ANWSER WITH A GOOD EXPLAINATION!!
Lelechka [254]

Answer:

Expected value is -3

You should not play

Step-by-step explanation:

five are red, five are green, 10 yellow

P(red) = red/total = 5/20 = 1/4

P(green) = green/total = 5/20 = 1/4

P(yellow) = yellow/total =10/20 = 1/2

Expected value = 1/4(18) + 1/4(10) + 1/2(0) - 10 to play

                             =18/4 + 10/4 - 10

                            =28/4 -10

                             =7-10

                             = -3

You should not play

5 0
2 years ago
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