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Murljashka [212]
3 years ago
11

A student earned a grade of 80% on a math test that had 20 problems. how many problems on the test did the student answer

Mathematics
1 answer:
Mekhanik [1.2K]3 years ago
3 0
16 questions where answered correctly.
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What is the operation symbol if the question is like this.<br> 52=8___(4___5)___20
stepan [7]

Answer:

52= 8×(4+5)-20

so I guess it's correct

7 0
3 years ago
If g(x)= 2x-1, and h(x)= square root of x, find (goh)(9)
loris [4]
(goh) = 2(x^1/2)-1
(goh)(9) = 2(9^1/2)-1
= 2(3)-1
= 6-1
= 5
(goh)(9) = 5
5 0
2 years ago
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I really need help!
iVinArrow [24]

Answer:

  c. m∠P'Q'R' = m∠PQR

Step-by-step explanation:

Rotation is a rigid transformation. It does not change lengths or angles.

8 0
2 years ago
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A box is 50 cm long. Which of these is closest to the length of this box in feet? (1 inch = 2.54 cm)
goblinko [34]

First, convert cm to inches.

50/2.54 is roughly 19.69

There are 12 inches in a foot, so divide the 19.69 by 12.

19.69/12 is roughly 1.64

So the answer is C

3 0
3 years ago
What is the area of the shaded sector?
Salsk061 [2.6K]

Answer:

= 72*pi

If we approximate pi

           = 226.08

Step-by-step explanation:

The area of the entire circle is

A = pi * r^2

where r = 24

A = pi * 24^2

A = pi *576

45 degrees is part of a 360 degree circle

45/360  =1/8

Multiply the area by 1/8  since it is 1/8 of the circle

1/8 A = 1/8 * 576pi

         = 72*pi

If we approximate pi

           = 226.08

7 0
3 years ago
Read 2 more answers
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