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KIM [24]
3 years ago
14

Use technology or a z-score table to answer the question.

Mathematics
1 answer:
matrenka [14]3 years ago
4 0

Answer:

D

Step-by-step explanation:

I usually use a z-score table, but you can do this with a calculator.

If we go to a z-score table, we first look up the first two digits (in this case, 2.8) in the far left column.  Then we find the hundredths digit in the top row (0.07).  Where they intersect is P(z < 2.87).

P(z < 2.87) = 0.9979

Answer D.

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22. f(x) is stretched horizontally by a factor of 2 and reflected across the x-axis. Which choice shows the correct representati
goblinko [34]

Answer:

A. -f(1/2 x)

Step-by-step explanation:

Reflextion about the x-axis is

f(x) -> -f(x)

and horizontal dilation is

f(x) -> f(-x/b) where b is the factor of dilation.

so the proper answwer is

A. -f(1/2 x)

6 0
3 years ago
48+(2*13)/110= ?<br> A) .673<br> B) .7214<br> C) 51.5<br> D) 35.62
siniylev [52]
48 + (2*13) / 110
PE(MD)(AS)

2 * 13 = 26
48 + 26 / 110

26 / 110 = 0.236..
Rounded = 0.24

48 + 0.24 = 48.24….

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6 0
3 years ago
What is the answer in fraction form?<br><br>-4/3÷9/5=?
Katarina [22]

Answer:

-20/27

Step-by-step explanation:

-4/3 ÷ 9/5

= -4/3 * 5/9

= -20/27

Hope it helps :)

7 0
3 years ago
Read 2 more answers
The radius of a circle is (7x+3)cm. Write an expression to represent the area of the circle in simplified form
zepelin [54]

Answer:

A = π(7x + 3)² cm²

Step-by-step explanation:

A = πr² is the appropriate equation.  If r = 7x + 3 cm, then the area of this particular circle is:

A = π(7x + 3)² cm²

3 0
3 years ago
Mr. Robins earns a commission on each airfare he books. At the end of the day, he had booked $208.60 worth of airfare and earned
muminat

Answer:

the answer in 15% because if you do $208.60 multiplied by 15% you get $31.29.

Step-by-step explanation:

8 0
3 years ago
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