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tangare [24]
3 years ago
11

A large envelope is 0.085 cm thick. How thick would a stack of 100 of these envelopes be? Explain your reasoning.

Mathematics
1 answer:
Pavlova-9 [17]3 years ago
3 0

Answer:

8.5 cm

Step-by-step explanation:

I think because wouldn't you take the 0.085 · 100

(get mad if I'm wrong i might be)

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An engineer has designed a valve that will regulate water pressure on an automobile engine. The valve was tested on 240240 engin
mojhsa [17]

Answer:

p-value = 0.1213  (to 4-decimal places)

Step-by-step explanation:

Given:

N = 240

mean  = 7.5

s = 1.0

Solution

With N=240 and using the central limit theorem, distribution can be approximated as normal.

Let

Null hypothesis H0, mu = 7.6

Alternate hypothesis, mu not equal to 7.6  (two-tail test)

for

Alpha = 0.1 (two sided)

Z = sqrt(N)(mean – mu)/s = sqrt(240)(7.5-7.6)/1.0 = -1.54919

p-value  

= P(|Z|>1.54919)  

= 2P(Z>1.54919)

= 2(1-P(Z<1.54919)

=2(1-0.9393)     (using normal distribution table)

=0.12134

Since alpha = 0.1 < p-value (0.1213), H0 that mean = 7.6 is not rejected.

5 0
3 years ago
How many degrees does the hour hand of a clock turn between 3 p.m and 7:30 p.m ?​
BlackZzzverrR [31]

A clock has 12 hours on it.

360/12 = 30

Each hour is 30 degrees.

3pm to 7:30pm is 4.5 hours

Multiply total hours by degrees per hour:

4.5 x 30 = 135 degrees

3 0
3 years ago
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Action hero mambo ('the moose with no mercy') has just finished for film for his latest movie. Due to his unique acting style he
solmaris [256]
A. £549 376 / 4 = £137344 per word
B. £549 376 / 16 = £34336 per letter
C. £549 376 / 37 = £14848 per letter
D. £549 376 / 512 = £ 1073
7 0
3 years ago
Please help 12+2x-14x+8=
bulgar [2K]

Answer:

-12x+20

Step-by-step explanation:

12+2x-14x+8

Add constants: 20+2x-14x

Add variables: 20-12x

Reorder: -12x+20

8 0
3 years ago
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A movie production company was interested in the relationship between the budget to make a movie and how well that movie was rec
fomenos

Answer:

i think it's C

Step-by-step explanation:

4 0
3 years ago
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