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notsponge [240]
2 years ago
14

Xz=58 and yz=23.1 find xy

Mathematics
1 answer:
Pachacha [2.7K]2 years ago
4 0

Step-by-step explanation:

XZ = 58

YZ = 23.1

XY = XZ + YZ

XY =58 + 23.1

XY = 81 .1

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What is the measure of angle B in degrees?<br> A) 30<br> B) 45<br> C) 60<br> D) 90
Triss [41]

Answer:

its a 30 my friend and if its not a then choose b hope this helped

Step-by-step explanation:

5 0
2 years ago
Seventy-six percent of sunflower seeds will germinate into a flower, and a sample of 800 such sunflower seeds is randomly select
ollegr [7]

Answer:

12.08

Step-by-step explanation:

For each sunflower, there are only two possible outcomes. Either it germinates, or it does not. The probability of a sunflower germinating is independent of other sunflowers. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

The standard deviation of the binomial distribution is:

\sqrt{V(X)} = \sqrt{np(1-p)}

Seventy-six percent of sunflower seeds will germinate into a flower

This means that p = 0.76

Samples of 800:

This means that n = 800

The standard deviation for the number of sunflower seeds that will germinate in such samples of size 800 is:

\sqrt{V(X)} = \sqrt{np(1-p)} = \sqrt{800*0.76*0.24} = 12.08

5 0
3 years ago
If the lowest temperature in Whitesboro for the week was -1°F and the highest temperature was 20°F, what was the total change in
Talja [164]
Answer: The total change is 21.

Since you want to find the change from the lowest to highest, make it into a subtraction problem. First of all, take the smallest number in front of the largest.

20 -1

Next, add a minus sign in between, your equation should look like this:

20 - (-1) = x

Then, you cancel out the negative signs. After that you solve it

20 - (-1) -> 20 + 1.

Lastly, you add them together.

20 + 1 = 21.

In conclusion, the answer is 21.

3 0
3 years ago
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A club has members from three grades.
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the ratio is 24:30

or the simplified version is 4:5

7 0
2 years ago
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