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SVETLANKA909090 [29]
4 years ago
12

The annual snowfall in a town has a mean of 38 inches and a standard deviation of 10 inches. Last year there were 63 inches of s

now. Find the number of standard deviations from the mean that is, rounded to two decimal places
Mathematics
1 answer:
padilas [110]4 years ago
8 0
This is 2.5 standard deviations from the mean.

We find this by subtracting the mean from our value, and dividing by the standard deviation:
(63-38)/10 = 25/10 = 2.5
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Find the number that belongs in the green box. <br><br>round your answer to the nearest tenth.​
Delicious77 [7]

Answer:

4.6

Step-by-step explanation:

Use sine rule to find the number that belongs to the box.

Thus:

\frac{a}{sin(A)} = \frac{b}{sin(B)}

a = ?? (the number in the green box)

b = 5

A = 38°

B = 42°

Plug in the values

\frac{a}{sin(38)} = \frac{5}{sin(42)}

Multiply both sides by sin(38)

\frac{a}{sin(38)} \times sin(38) = \frac{5}{sin(42)} \times sin(38)

a = \frac{5 \times sin(38)}{sin(42)}

a = 4.6 (nearest tenth)

8 0
3 years ago
You have $700 to invest in an account and need to have $950 in one year. What interest rate would you need to have in order to r
zhenek [66]

Answer:

136% = 1.36

Step-by-step explanation:

(950-700)/700

=0.3571 (0.36)

Then you have to plus one

0.36+1

=136% or 1.36

4 0
3 years ago
Given the digits 2,5,7,9, 4, and 1, how many 4-digit codes can be made if 4 points
VMariaS [17]

Answer:

144

Step-by-step explanation:

first digit of the code: only 2 and 4 are the only even numbers availible, so only 2 possibilities for the first digit.

2nd digit of code: 2,5,7,9,1 so 6 possibilities for the 2nd digit.

3rd digit of code: 2,5,7,9,1 so 6 possibilities for the 3rd digit.

4th digit of code: only 7 and 9 are greater tyhan 6 so only 2 possibilities for the 4th digit.

SO...

2 x 6 x 6 x 2 = 144

8 0
3 years ago
Hi again. I'm bb and needs more help with maths if you can helps me :3
Brut [27]

Answer:

The answer is: There is a negative correlation in the data set.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Please answer, I’m struggling allot
agasfer [191]

Answer: -3

Step-by-step explanation:

y2-y1/x2-x1

(1,0)

(0,3)

3-0/0-1 = -3/1

4 0
3 years ago
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