3 years ago

2/5,8/20: is it a proportion?

Mathematics

1 answer:

katen-ka-za [31]3 years ago

6 0

Answer:

Step-by-step explanation:

you need to simplify 8/20

8/20 can be put into the greatest common factor which is 4

then divide both sides by 4 this equals to 2/5

So yes they are

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Answer:

A=πr2

Step-by-step explanation:

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3 years ago

If a triangle with angle measures 40,30.and 120 centimeters possible?

vagabundo [1.1K]

No, the longest side must be less than the sum of the smaller sides or else they won't connect (try it yourself with straw or something)

40+30>120
70>120
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Answer:

x^2 -4x +2 = 0

Step-by-step explanation:

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Expanding this, we get ...

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3 years ago

Find the area of the trapezoid. b1=5 b2=7 h=4 PLEASE EXPLAIN TOO!

olga_2 [115]

Step-by-step explanation:

The formula for finding the area of a trapezoid is $\frac{b_{1} + b_{2} }{2}$ ×h

Start by substituting the values given in the problem into the formula

$\frac{5+7}{2}$ ×4

Now Simply/solve

$\frac{12}{2}$ ×4

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3 years ago

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