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ehidna [41]
3 years ago
6

The scores on a test given to all juniors in a school district are normally distributed with a mean of 72 and a standard deviati

on of 6. Find the probability that a randomly chosen junior has a score above 90. The probability of randomly choosing a junior whose score is above 90 is___%.
Mathematics
1 answer:
faust18 [17]3 years ago
8 0
30% is the correct  answer.
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Given the following exponential function, identify whether the change represents growth or decay, and determine the percentage r
Luden [163]
We are given this function:
y=8700* (1.04)^{4}

8700 is the initial amount.
1.04 shows the change of original amount. This is decimal form of percentage. We need to transform it into regular percentage.
1.04 * 100% = 104%
Now we observe this number. If it is greater than 100% we have growth, if it is lower than 100% it is decay, and if it is equal to 100% than there is no change.
In our case this number is greater than 100% so we have growth. To determine the percentage rate we must substract 100% as it represents the original amount.
104% - 100% = 4%
This would be our solution if we don't have an exponent.

We have exponent so first step is to calculate the number and then we repeat the steps from above.
1.04^{4} = 1,16985856
1,16985856 * 100% ≈ 116,99%
116.99% - 100% = 16.99%
So, final solution is growth of 16.99%
6 0
3 years ago
Read 2 more answers
Help me pls, here you are.
VLD [36.1K]

Answer:

The answer is -3/8

Step-by-step explanation:

3 0
3 years ago
In ΔABC, a = 300 inches, ∠B=45° and ∠C=41°. Find the length of c, to the nearest 10th of an inch.
dezoksy [38]

Answer:

197.3

Step-by-step explanation:

4 0
3 years ago
Write and solve an equation for the total number of possible combinations from flipping a coin 10 times.
vladimir2022 [97]

Step-by-step explanation:

every flip has 2 possible outcomes.

1 flip has 2.

2 flips have 2×2 = 2² = 4

3 flips have 2×2×2 = 2³ = 8

and so on.

the number of possible combinations flipping a coin n times is

C(n) = 2^n

for 10 flips

C(10) = 2¹⁰ = 1024

possible outcomes or combinations.

5 0
1 year ago
Read 2 more answers
3. Below is Linbell's weekly work
Flura [38]
42
It’s 42 since if you would convert this
7 0
3 years ago
Read 2 more answers
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