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mihalych1998 [28]
3 years ago
7

Please answer, serious answers only !

Mathematics
2 answers:
nadya68 [22]3 years ago
6 0

Answer:

64

Step-by-step explanation:

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djyliett [7]3 years ago
3 0

Answer:

Step-by-step explanation:

Those 2 angles (the one you are given and the one you want to find) are vertically opposite.

Vertically opposite angles are equal.

Therefore the answer is 64 degrees.

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There is concern that increased industrialization may be increasing the mineral content of river water. Ten years ago, the silic
Tema [17]

Answer:

a) P value = 0.0013

b) No, it is not plausible that the silicon content of the water is no greater than it was 10 years ago

Step-by-step explanation:

The null hypothesis here is “Mean is equal to 5” while alternate hypothesis is that “Mean is greater than 5”

Given  

Mean = 5, x’ = 5.4 and sigma = 1.2 and n = 85

Z = x-u’/sigma/sqrt n

Substituting the given values, we get –  

Z = 3.02

A) P value = 0.0013 which is less than 0.05 and thus we will reject the null hypothesis

B) There is enough evidence to reject the null hypothesis  

6 0
2 years ago
Can someone please help me with this question?
il63 [147K]

192 people should prefer Company B.


32+75+18=125

750/125=6

32*6=192

3 0
3 years ago
Read 2 more answers
PLZ HELP<br> Do the ones you know!
liq [111]
The first one in the top is 180 degrees so 8(15) and 8x15=120 so x on the other side is 60.
3 0
3 years ago
Can anyone help me please, I need to figure out the value of n with work shown
Dmitry [639]

Answer:

n = 15

Step-by-step explanation:

This is a right triangle, and so the Pythagorean Theorem applies:

x^2 + 8^2 = 17^2

Solving for x^2:  17^2 - 8^2 = 289 - 64 = 225, and so x = 15.

n = 15

4 0
2 years ago
Gavin is selling water bottles at a baseball game to help raise money for new uniforms.
coldgirl [10]

Answer:

$41.50 profit

Step-by-step explanation:

First, 1.25x48=60

Second, 60-18.50=41.50

7 0
3 years ago
Read 2 more answers
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