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Over [174]
3 years ago
11

Which shape is always a rectangle?

Mathematics
1 answer:
meriva3 years ago
8 0

Answer:

D. A square because it has 4 right angles.

Step-by-step explanation:

A square is a rectangle but a rectangle is not a square.

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Of the 85% of the students in a class who studied for a test,75% passed the test.Of the 15% of the students who didn't study,30%
galina1969 [7]
Probability works for any given number, so we will assume there are 100 students. Of those 100, 85 of them studied. Since 75% of 85 students passed, we will multiply 85 by 0.75. This gives us 60. So of the students who studied, 60 of them passed. Of the 15 students that didn’t study, 30 percent passed. So we multiply 15 by 0.3. This gives us 4.5 students. Add up 60 and 4.5, and you get 64.5. The probability of passing is 64.5%. If you want to round up, it would be 65%. If you want to round down, it would be 64%. But the most precise answer is 64.5%.
3 0
3 years ago
A pile of string measures to be 4 5/6 feet long. For a project Ms. Thompson wants to cut the long piece of string into several s
Vesnalui [34]

Answer:

7 pieces

Step-by-step explanation:

change 4 5/6 into an irregular fraction. 29/6

divide 29/6 by 2/3. to do this, flip and multiply

29/6 * 3/2 = 87/12 = 7.25 or 7 whole pieces

3 0
3 years ago
A new health drink has 130​% of the recommended daily allowance​ (RDA) for a certain vitamin. The RDA for this vitamin is 50 mg.
Anika [276]
Answer:
58.5 mg

Step-by-step explanation:

Drink: 130% of RDA of vitamin X
RDA vitamin X = 45mg
130% of 45 = mg in the drink
130% = 130/100 = 1.3
130% of 45 = 1.3*45 = 58.5

So, this new drink has 58.5 mg of vitamin
4 0
3 years ago
If x and y are two supplementary angles whereas m
Rudiy27

Answer:

110degrees

Step-by-step explanation:

Complete question

Q4: If x and y are two supplementary angles whereas m<x=70 then find the m<y.

The sum of two supplementary angles is 180degrees, hence;

m<x + m<y = 180

70 + m<y = 180

m<y = 180 - 70

m<y = 110degrees

Hence the measure of ,=m<y is 110degrees

5 0
3 years ago
The graph shows the ages of different concertgoers who have backstage passes.
kow [346]

Answer:

B.The two holders of back-stage passes whose ages are above 40 make the mean age higher than the median age.

Step-by-step explanation:

i took the test just now

8 0
3 years ago
Read 2 more answers
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