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Gre4nikov [31]
3 years ago
8

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. How many standard deviations from the mean is that?
Mathematics
1 answer:
Basile [38]3 years ago
6 0
                                                      63 - 38
Just calculate the z-score:    y = ---------------- = 25/10, or   z = 2.5 (answer)
                                                          10
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Chain complete 40% of her homework on Monday and 2/3 on Tuesday if she started her homework on Monday what fractional part of he
kotykmax [81]

Answer:

1/5

Step-by-step explanation:

For Monday

The fraction of homework Chain completed =

40% of her homework

= 40% = 40/100

= 2/5

For Tuesday

The amount of home work left =

= 1 - 2/5

3/5

The fraction of homework Chain completed on Tuesday = 2/3

= 2/3 Of 3/5

= 2/3 × 3/5

= 2/5

Let the total complete homework be represented by 1

Hence:

The Fractional part of her homework left for her to complete after Tuesday =

1 - (2/5 + 2/5)

Lowest common denominator is 5

= 1 - (2 + 2/5)

= 1 - (4 /5)

= 1/5

8 0
3 years ago
If f(2) = 22 – 5, then what is the value of f(2) + f(5)?
jasenka [17]

Answer:

67

Step-by-step explanation:

With the information of f(2) = 22-5,  you can assume the equation will be f(x) = 11x-5. Using this, you can calculate f(5) by doing 11(5)-5, which is 50. 22-5 is 17, so 50+17=67

5 0
3 years ago
Read 2 more answers
When 7 is subtracted from 3 times a certain number , the result is 28. What is the number
pychu [463]

7 multiply by three u get 21 then add it to the number 28 add u get the answer 49

5 0
3 years ago
For f(x) = x3-x2, which gives an output of 48?<br> A. f(-8)<br> B. f(-4)<br> C. f(4)<br> D. f(8)
Butoxors [25]

Answer:

The input is x−2, therefore

Step-by-step explanation:

f(x−2)=(x−2)2−3(x−2)+1

7 0
2 years ago
Ms. Hernández is taking her children and their friends to the movies. She will pay $10 for her adult ticket and $7 for each chil
stiv31 [10]
(40-10)/7

The maximum amount of money she wants to spend is $40
Her adult ticket costs $10
She will pay for the children’s tickets with the remaining money
Each child’s ticket costs $7
To find the number of children she can take we need to use this expression (40-10)/7
Mrs Herñàndez can take 4 children
8 0
2 years ago
Read 2 more answers
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