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pshichka [43]
3 years ago
12

Please ignore the work done in pencil. Can somebody help me do this

Mathematics
1 answer:
Alisiya [41]3 years ago
4 0
Your answer is 33+19 because phoebe scored 23 points and scored 10 points less than Nancy so adding 10 to 23 would get Nancy so then 10+23 is 33 so than you you add 19 to 33 to get your answer
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If the mean is 298 and standard deviation is 22 what is the probability that a random sample of 42 pregnancies has a mean gestat
anyanavicka [17]

Answer:

The probability is 0.9909.

Step-by-step explanation:

Test statistic (z) = (sample mean - population mean) ÷ (sd/√n)

sample mean = 290 days

population mean = 298 days

sd = 22 days

n = 42

z = (290 - 298) ÷ (22/√42) = -8 ÷ 3.395 = -2.36

The cumulative area of the test statistic is the probability that the mean gestation period is less than 290 days. The cumulative area is 0.9909. Therefore the probability is 0.9909.

7 0
3 years ago
Read 2 more answers
Help anyone pleaseeee
AlexFokin [52]

Answer:

36 <127

(36,127°)

36 [ cos (127) + i sin (127)]

Step-by-step explanation:

w1 = 2 < 95

w2 = 18 < 32


w1 * w2

We multiply the magnitude and add the angles

w1 * w2 = 2*18 < (95+32)

            =36 < 127

             36 [ cos (127) + i sin (127)]

4 0
3 years ago
Which layer of the Earth is the thickest?
DaniilM [7]

Answer:

The mantle

Step-by-step explanation:

The Earth can be divided into four main layers: the solid crust on the outside, the mantle, the outer core and the inner core. Out of them, the mantle is the thickest layer, while the crust is the thinnest layer

3 0
3 years ago
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[(b+3)÷(a–2)](−4) if a=−5, b=6.
finlep [7]
9/-7 x -4=

36/7

Hope it helps
6 0
3 years ago
Which point is on the graph of f(x) = 6x? A. (0, 6) B. (1, 6) C. (6, 1) D. (0, 0)
andreev551 [17]

Answer:

D. (0,0)

Step-by-step explanation:

F(x)=6x

0=6x

x=0

6 0
3 years ago
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