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Neporo4naja [7]
3 years ago
12

1.

Mathematics
1 answer:
iris [78.8K]3 years ago
4 0
37 miles! Step-by-step explanation:
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At Walmart, a $525 bicycle is marked, "Get a 30% discount." What is the sale
Mkey [24]

Answer:

367.50

Step-by-step explanation:

First find the discount

525 * 30%

525 * .30

157.50

Subtract this from the price

525-175.50

367.50

This is the new price

5 0
3 years ago
Read 2 more answers
A, B and C lie on a straight line.
lilavasa [31]

Answer:

y+what ever the angle inside=180 since its on a line

180-128=52

52+z+x=180since thats always the angles of a triangle added up

52+91+x=180

add

143+x=180

-143

x=37

Hope This Helps!!!

8 0
2 years ago
In the United States, the mean and standard deviation of adult men's heights are 70 inches (5 feet 10 inches) and 4 inches, resp
Artyom0805 [142]

Answer:

P(X>72)=P(\frac{X-\mu}{\sigma}>\frac{72-\mu}{\sigma})=P(Z>\frac{72-70}{4})=P(z>0.5)

And we can find this probability using the complement rule and the normal standard table:

P(z>0.5)=1-P(z

And the best solution would be:

c. 0.3085

Step-by-step explanation:

For this case we can convert all the values to inches in order to standardize the solution:

5ft * \frac{12 in}{1ft}= 60 in

6ft * \frac{12 in}{1ft}= 72 in

Let X the random variable that represent the heights of US mens, and for this case we know the distribution for X is given by:

X \sim N(70,4)  

Where \mu=70 and \sigma=4

We are interested on this probability

P(X>72)

We can use the z score formula given by:

z=\frac{x-\mu}{\sigma}

Using this formula we got:

P(X>72)=P(\frac{X-\mu}{\sigma}>\frac{72-\mu}{\sigma})=P(Z>\frac{72-70}{4})=P(z>0.5)

And we can find this probability using the complement rule and the normal standard table:

P(z>0.5)=1-P(z

And the best solution would be:

c. 0.3085

5 0
3 years ago
Find the value of X for which the following fraction is undefined
aleksandrvk [35]

Answer: ±√2

Step-by-step explanation: A fraction is undefined when its denominator is =0 or undefined. so we need to get 2/3x²-6=0 or undefined. so we can also do 3x^2-6=0. Solving yields ±√2!

3 0
3 years ago
Write a story to go with 3/4 times 1/2.
valina [46]

Answer:

2/3 = 0.666666667

<em><u>hopefully i helped :)</u></em>

<em><u></u></em>

8 0
3 years ago
Read 2 more answers
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