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olya-2409 [2.1K]
3 years ago
12

A student earned an 80 % on a math test that had 25 problems . How many problems on the test did the student earn

Mathematics
1 answer:
Artist 52 [7]3 years ago
8 0

Answer: 20 problems

Step-by-step explanation:

There were 25 questions in this test.

The student got 80% out of these so the problems that the students got right were:

= 80% * 25

= 20 problems

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Which alternative will increase the probability of detecting a shift in the process average?
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Answer:

d. Taking larger samples more frequently

Step-by-step explanation:

The alternative that will increase the probability of detecting a shift in the process average is option D.

d. Taking larger samples more frequently .

3 0
3 years ago
A rectangular park is 150 yards on one side and 125 yards on the other.
Ket [755]
So, there is a rectangular park with longer side (length) 150 yards and shorter side (width) 125 yards.

so walking around the rectangular park once is like covering the Perimeter (p) of the rectangular park.

So, lets find the perimeter of the park.
Perimeter of rectangle = 2 ( l + w)
                                    = 2 ( 150 + 125 )
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Now, walking around the park two times is like doubling the Perimeter of the rectangle. So, when Debbie walks around the park 2 times, he covers the perimeter of the rectangular field twice.

i.e. Debbie walked 2 * Perimeter
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Now, If Debbie wanted to walk 1,000,000 yards, she has to walk the  rectangular park (1,000,000 / the Perimeter of the park)
         i.e.  1,000,000 / 550
             = 1818.18 times

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(b) She have to walk 1818.18 times
4 0
3 years ago
Four polynomials are shown below:
nikklg [1K]
Both B and D are 3rd degree, but only D is a 3rd degree binomial because it has only 2 terms. The answer is D.
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Answer:

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The Y-intercept is where the line crosses the y-axis, point of intersection. It is the constant in the slope-intercept form.

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We will know if a proportion is equivalent when its cross products are equal.

a/b = c/d where ad = bc

since ad = bc, a/c = b/d

4 0
3 years ago
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