3 years ago

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Mathematics

1 answer:

GREYUIT [131]3 years ago

4 0

Answer:

I can even see anything can you reupload your answer, please?

Step-by-step explanation:

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A car seller buys a car from a manufacturer for 10,000. He increases the cost by 5 percent. What is the markup amount?

Ksenya-84 [330]

The seller marks up the price by $500, for a grand total of $10,500

7 0

3 years ago

If m a is 45, then a is ?

dezoksy [38]

Then a is Half of 45 wich is 22.5 I believe.

5 0

3 years ago

The scores on a psychology exam were normally distributed with a mean of 60 and a standard deviation of 10 . A failing grade on

tensa zangetsu [6.8K]

Answer:

The cutoff for a failing score was 40,

Approximately 2.3% of the students failed.

Step-by-step explanation:

Given,

Mean, $\mu=60$

Standard deviation, $\sigma=10$

Let x represents the cutoff for a failing score,

Thus, according to the question,

$\frac{x-\mu}{\sigma}=-2$

$\frac{x-60}{10}=-2$

$x-60=-20$

$x=-20+60$

$x=40$

Thus, the cutoff for a failing score is 40,

∵ P(<-2) = 0.02275 = 2.275 % ≈ 2.3 %

Hence, Approximately 2.3 % of the students failed. 

7 0

3 years ago

Zachary says that the equation 0 =-1/2 (x – 4)(x –

melomori [17]

Answer:
c = 4

Explanation:
The number of solutions for any equation is equal to the degree of the equation.

The given equation is a second degree equation which means that it has two solutions.

The only possible way for it to have one unique real solution is that the two solutions are equal

This means that:
x - 4 = x - c
Now, we solve for c:
x - 4 - x = x - c - x
-4 = -c
c = 4

Hope this helps :)

6 0

3 years ago

Read 2 more answers

Hii please answer really easy xx

dlinn [17]

Answer:

Step-by-step explanation:

find only for x or?

8 0

3 years ago