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Vedmedyk [2.9K]
2 years ago
12

Assume that the mean length of a human pregnancy is 269 days. If​ 95% of all human pregnancies last between 249 and 289 ​days, w

hat is the standard deviation of the distribution of lengths of human​ pregnancies? What percent of human pregnancies are expected to last at least 287 ​days?
Mathematics
1 answer:
o-na [289]2 years ago
7 0

Answer:93% not sure

Step-by-step explanation:

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Slope is 0 and (3,2) is on the line
USPshnik [31]

Answer:

y = 2

Step-by-step explanation:

if slope is 0 y stays the same and y is 2 on the point

7 0
4 years ago
What is the measure of each interior angle of the regular polygon pictured below? If necessary, round to the nearest tenth.
sammy [17]

Answer:

144

Step-by-step explanation:

Sum of interior angles:

180(n-2)

180(10-2)  

1440

Measure of each interior angle:

1440/10=144

8 0
3 years ago
Tyler has a lizard named Larry. Tyler wants to build a rectangular pen for Larry to run
QveST [7]

Answer:

You can go for 1x9, 2x8, 3x7, 4x6, 5x5.

5x5 is the best as it builds a square, which maximizes space.

20*2.50 = $50.

7 0
3 years ago
Estimate the product 5.25 × 8.89.
Anon25 [30]

Answer:

47.25

Step-by-step explanation:

8.89 is about 9.

So, we have 9(5.25)=9(5)+9(0.25)=45+2.25=47.25

3 0
2 years ago
Naomi wants to make smoothies for her friends.each servings the smoothie contains 7/8 cup of blueberries and 8/9 cups of strawbe
STatiana [176]

Answer:

A.

Step-by-step explanation:

Blueberries

7/8 + 8/9 = 1  55/72

1  55/72 x 4 =

1 = 72

72 + 55 = 127

127/72 x 4/1 = 504/288

504/72 = 7/1

7

Even tho 7 isn´t an option I would pick A. because it is the closest

4 0
3 years ago
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