I need help with this!!

Mathematics

1 answer:

leva [86]3 years ago

5 0

Answer:

Step-by-step explanation:

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Name two things to consider when you are planning how to select a random sample.<br>

Marta_Voda [28]

Answer:

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Step-by-step explanation:

7 0

3 years ago

a school wants to build a rectangular playground that will have a diaonal length of 75 yards. how wide can the playground be if

adoni [48]

You would use the Pythagorean Theorem.
a2 + b2 = c2
302 + x2 = 752
900 + x2 = 5625
900 – 900 + x2 = 5625
X2 = 5625
√(x^2 ) = √5625
X = 75
It is 75 yards wide. I've included a drawing of the rectangle if it helps.

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4 years ago

I need help with my math homework please

lidiya [134]

8. The percentage of salt in each mixture is 0.35%.
To find out the latter part of the problem, we can use algebra:
14 (grams of salt) = 0.35m (0.35% of the mixture)
14 ÷ 0.35 = 0.35m ÷ 0.35 (we want to find just m, so we have to divide it by 0.35)
40 = m. The scientist made 40 g of mixture!

9. We just divide 32.5 pounds by 0.25 ( a quarter).
32.5 ÷ 0.25 = 130 kids!

10. Her original distance is 0.5 miles. But! She walked back 0.25 (quarter) mile so now this adds a quarter of a mile of distance from her house to her school.
0.5 × 3 = 1.5 + 0.25 = 1.75 miles from her house to her school.

7 0

3 years ago

PLEASE HELP IM STRUGGLING ILL GIVE 15 PTS! Given segment CE and point D that lies on CE, find ED if CE = 17, CD=-20-5x, and ED=-

mr_godi [17]

Here you go! The work is shown below!