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laiz [17]
2 years ago
15

Pregnancy length (in days) is a normally distributed random variable with a mean of 266 days and a standard deviation of 16 days

. Calculate the z-score for a pregnancy lasting 286 days. Do not round.
Mathematics
1 answer:
velikii [3]2 years ago
5 0

Answer:

it=552

Step-by-step explanation:

with rounding it = 550

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What is the answer to this 2x - 5 = 7
SCORPION-xisa [38]

Step-by-step explanation:

2x - 5 = 7

2x = 7 + 5

2x = 12

x = 12 / 2

x = 6

Hope it will help :)

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3 years ago
Nina and Luca were told to draw a net for the three-dimensional figure shown below. Which statement about the students' nets is
NISA [10]

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it was a three-dimensional figure

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2 years ago
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Convert 89/10 into a mixed number ​
kompoz [17]

Answer:

8 9/10

Step-by-step explanation:

89 goes into 10 8 times.

8x10=80.

89-80=9

So the answer is 8 9/10

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2 years ago
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Diana buys 5 sodas every week. Which of the following expressions shows the total number of sodas she buys in y weeks?
dedylja [7]

Answer:

5y

Step-by-step explanation:

because each week she buys five so you multiply 5 by however many weeks.

5 0
2 years ago
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NEED HELP ASAP!!! 20 POINTS, 5 STAR REVIEW AND BRAINLIEST TO WHOEVER IS FIRST!
lesya [120]

Answer:

#1 is 30 degrees

#2 is obtuse

#3 is "No rhombuses are rectangles"

#4 is D

#5 is A

Step-by-step explanation:

For #1, we have an angle vertical to 120 degrees which includes a right angle, so we make an equation:

90+x=120

x=30

So angle x is 30 degrees aka. Option A

For #2, obtuse angles have the sum of the square of the side lengths that are less than the square of the hypotenuse. In this case, 6^2+4^2<9^2 or 50<81

For #3, rhombuses have two pairs of congruent sides but no right angles while rectangles have two pairs of congruent sides but they also have right angles.

For #4, they are similar because one of the triangles is dialated by a scale factor of 1.5.

For #5, just think of turning the triangle on its other side, aka. option A

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2 years ago
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