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slava [35]
3 years ago
15

Can someone help me with these 2 polygons and how to figure out a circumference

Mathematics
1 answer:
Svetlanka [38]3 years ago
7 0

The circumference of a circle is found by using the equation: C= 2 x PI x r

Both circles have r = 1

Circumference = 2x 3.14 x 1 = 6.28.

Diameter is 2 times the radius= 2x1= 2

The ratio of the circumference to the diameter = 6.28 / 2 = 3.14 which is the value of PI

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What is -1/2 + n = -5/8 what does n equal
Stels [109]

Answer: n=0.4 or 2/5

Step-by-step explanation:

4 0
3 years ago
Eva bought 3 rainbow trout for dinner. They weighed 3 Ib 5 oz, 2 Ib 12 oz, and 3 Ib 8 oz. She cut off the heads and the tails an
Y_Kistochka [10]

The amount of waste is 22 oz

<h3>How to determine the waste amount?</h3>

The weights of the 3 rainbow trouts are:

3 Ib 5 oz, 2 Ib 12 oz, and 3 Ib 8 oz.

The total weight is:

Total = 3 Ib 5 oz + 2 Ib 12 oz + 3 Ib 8 oz

Evaluate the sum

Total = 8 Ib 25 oz

The amount she was left with is 8 Ib 2 oz

Subtract this amount from the total

Waste = 8 Ib 25 oz - 8 Ib 2 oz

Evaluate

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Hence, the amount of waste is 22 oz

Read more about sum and difference at:

brainly.com/question/10739762

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8 0
2 years ago
Given g(x)= -2x+2 and f(x)= 3x^2+4, find (g+f)(-3)
aliina [53]

Answer:

39

Step-by-step explanation:

g(x)= -2x+2 and f(x)= 3x^2+4

(g+f)(-3)

g(-3) = -2(-3) +2 = 6+2 =8

f(-3) = 3 (-3)^2 +4 = 3(9)+4 = 27+4 = 31

(g+f)(-3) = g(-3) + f(-3) = 8+31 = 39

3 0
3 years ago
I will give brainliest to the person who does all ten problems first
Anastasy [175]

Answer:

1)   5p+10-p

4p+10

2)  8h+12h-18

20h-18

3)  4x+32+9x

13x+32

4)  6y+8+9

6y+17

5)9x+12x+18

21x+18

6) 9m+9+2m

11m+9

7)  2r+18-6

2r+12

8)  15d+8

9)  8m+8+3m

11m+8

10)  5y+20+10y

15y+20

3 0
2 years ago
A psychological experiment was conducted to investigate the length of time (time delay) between the administration of a stimulus
aleksklad [387]

Answer:

The P-value of this sample is 0 and is less than the significance level (0.05), so the effect is significant and the null hypothesis is rejected.

As there is significant evidence to reject H_0: \mu= 1.6, we can say that there is significant evidence to claim that the mean time delay for the hypothetical population of all persons who may be subjected to the stimulus differs from 1.6 seconds.

The significance level for this test is 0.05.

Step-by-step explanation:

In this case, we want to prove if there is significant evidence that the mean differs from 1.6 seconds. That is the same as having evidence to reject the the hypothesis H_0:\mu= 1.6 (the null hypothesis always have the equal sign).

We have to test the null hypothesis

H_0:\mu= 1.6

The significance level for this test is 0.05

Calculation of the t-statistic:

t=\frac{M-\mu}{s/\sqrt{n}} =\frac{2.2-1.6}{0.57/\sqrt{36}} =\frac{0.6}{0.063}= 9.47

If we look up in a t-table for t=9.47 and df=(36-1)=35, we get this value appears with a probability of zero. A large number like that is very unlikely to happen.

The P-value of this sample is 0 and is less than the significance level (0.05), so the effect is significant and the null hypothesis is rejected.

As there is significant evidence to reject H_0: \mu= 1.6, we can say that there is significant evidence to claim that the mean time delay for the hypothetical population of all persons who may be subjected to the stimulus differs from 1.6 seconds.

6 0
3 years ago
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