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hichkok12 [17]
3 years ago
13

The weight of laboratory mice follows a normal distribution, with a mean of 0.68 ounce and a standard deviation of 0.02 ounce. W

hat percentage of the mice weigh between 0.62 ounce and 0.74 ounce?
A.99.7%
B.95%
C.68%
D.47.5%
E.34%
Mathematics
2 answers:
Natasha2012 [34]3 years ago
8 0
The answer is letter D
Soloha48 [4]3 years ago
6 0

Answer:

A.99.7%

Step-by-step explanation:

Calculate each z-score.

z = (x − μ) / σ

z = (0.74 − 0.68) / 0.02

z = 3

z = (x − μ) / σ

z = (0.62 − 0.68) / 0.02

z = -3

You can use a z-score table, or use the empirical rule.

P(-3 < z < 3) = 99.7%.

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Solve the 3D figure Rectangle is A=BH<br> Triangle is A=1/2BH
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Answer:

The area of the 3d figure

Step-by-step explanation:

the area of the one of triangle is 8.7

and the reactangle is 5 x 7 = 35

and the big one is 10 x 7 = 70

so 8.7 + 8.7 + 35 + 35 + 70 = 157.4

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2 years ago
Find the perimeter of the semicircle when diameter is 3.5 cm. (1 Point)
Feliz [49]

● Answer:

8.995 cm

● Step-by-step explanation:

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d = 3.5 cm

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= pi×d/2

= 3.14×3.5/2

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4 years ago
What is the length of the third side of the window frame below?
Tanya [424]

Answer:

15 inches

Step-by-step explanation:

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Let the base of the window frame be x inches

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x² = 39² - 36² = 225

x = \sqrt{225} = 15 inches

The third side of the window frame is therefore equal to 15 inches.

3 0
3 years ago
5d-4=4-d<br> solve the equation
horrorfan [7]

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Step-by-step explanation:

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+d             +d

____________

6d - 4 = 4

      -4   -4

__________

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__   __

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3 0
3 years ago
Read 2 more answers
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Natasha_Volkova [10]

Answer:

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Step-by-step explanation:

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