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Juliette [100K]
2 years ago
7

Which of the following statements is not true?

Mathematics
1 answer:
icang [17]2 years ago
8 0

Answer:

-3.7 > -3.1

Step-by-step explanation:

Because -3.1 more close to 0 so is supposed to be bigger than -3.7

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A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 117.7-cm and a standard dev
Andre45 [30]

Answer:

Required probability is 0.9748

Step-by-step explanation:

given data

mean \mu = 117.7-cm

standard deviation \sigma = 2.2-cm

sample size n = 29

solution

we consider here random variable which represents here length of rod= x

so get here first z that is express as

Z = \dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}    

put here value with x value 118.5-cm

Z = \dfrac{118.5-117.7}{\dfrac{2.2}{\sqrt{29}}}

Z = 1.9582

p value is 0.9748

so required probability is 0.9748

7 0
3 years ago
What are the chances of landing on heads when tossing one coin?
e-lub [12.9K]

Answer:

50%

Step-by-step explanation:

Since there is either heads or tails, meaning only two options you have a 50% chance of getting heads

6 0
3 years ago
Read 2 more answers
An angle measures 6° less than the measure of a complementary angle. what is the measure of each angle?
Sauron [17]
A and 90-a is the measure of the two angles

a=90-a-6
2a=84
a=42
42° and 48°
3 0
3 years ago
Can you answer these 3 questions for me plz
finlep [7]
A.
1hr \: 15min = 75min

c = 0.22t = 0.22 \times 75 = 16.5

cost is $16.50

B.

26.40 = 0.22 \times t

rearrange to solve for t:

t = \frac{26.40}{0.22} = 120min

C. This is the same as part B, only the rate changed

t = \frac{26.40}{0.25} = 105.6min

they ask for the greatest number of minutes, so we round down (take the floor of the value).

the answer is 105 minutes.
4 0
2 years ago
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Pless help ineed it naww
aleksandr82 [10.1K]

Answer:

D

Step-by-step explanation:

It's the only equation that gets y correct in every one.

3 0
2 years ago
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