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mariarad [96]
3 years ago
7

PLEASE HELP I NEED HELP ;(

Mathematics
2 answers:
Dominik [7]3 years ago
8 0
It’s the second choice
MrRissso [65]3 years ago
7 0

Answer: second choice

Explanation:

all the answers are prime factorized, meaning that everything under the sign should multiply up to 180. the second answer, 2*2*3*3*5=180 works

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Newly purchased tires of a particular type are supposed to be filled to a pressure of 30 psi. Let m denote the true average pres
dimulka [17.4K]

Answer:

a) 48.21 %

b) 45.99 %

c) 20.88 %

d) 42.07 %

e) 50 %

Note: these values represent differences between z values and the mean

Step-by-step explanation:

The test to carry out is:

Null hypothesis  H₀    is                           μ₀ = 30  

The alternative hypothesis                      m  ≠ 30

In which we already have the value of z for each case therefore we look  directly the probability in z table and carefully take into account that we had been asked for differences from the mean (0.5)

a)  z = 2.1   correspond to  0.9821  but mean value is ubicated at 0.5 then we subtract    0.9821 - 0.5  and get 0.4821   or 48.21 %

b)  z = -1.75   P(m) = 0.0401     That implies the probability of m being from that point p to the end of the tail, the difference between this point and the mean so 0.5 - 0.0401 = 0.4599 or 45.99 %

c)  z = -.55    P(m) = 0.2912    and this value  for same reason as before is 0.5 - 0.2912 = 0.2088  or 20.88 %

d)  z = 1.41     P(m) = 0.9207    0.9207 -0.5     0.4207  or  42.07 %

e)  z = -5.3   P(m) = 0    meaning there is not such value in z table is too small to compute  and difference to mean value will be 0.5  

d)  z= 1.41      P(m) =

4 0
3 years ago
Jaden has 3 times as many pieces of gum as Brian has. Jaden has 150 pieces of gum. How many pieces of gum does Brian have?
storchak [24]

Answer:

Brian has 50 pieces of gum

Step-by-step explanation:

Jaden has three times as many

Therefore-

n x 30 = 150

We need to solve for n

You can do that by dividing 150 by 3

150/3 = 50

So Brian has 50 pieces

5 0
3 years ago
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6 x 2 minus 20 because 6 x 2 is in parenthesis so it comes first
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Evaluate the expression when b= -5 and X-4.<br> 9x-b
Bas_tet [7]
9(-4)-5


If you want the answer then that is


-36-5= -41
3 0
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A scientist collects 4 beetles that measure 0.85 cm, 0.75 cm, 0.60 cm , and 0.51 cm. which of these fall into size range of lady
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0.51 its most likely
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