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3 years ago

When do two ratios form a proportion?

Mathematics

2 answers:

Karo-lina-s [1.5K]3 years ago

8 0

A proportion is when two ratios are equal.

For example the ratio 10:5 is equal to the ratio 2:1, therefore this is a proportion.

umka21 [38]3 years ago

5 0

when they are equal

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What two ratios are equivalent to 12:6?

Alex73 [517]

It would be equal to, 24:12, 36:18

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3 years ago

Marty got a score of 45 with two throws on this dart board. Which two categories did he hit

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Step-by-step explanation:

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2 years ago

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Please help me with this geometry question and show work

soldi70 [24.7K]

(3) 8

Step-by-step explanation:

Note that ∆ADE is similar to ∆ABC. As such, the ratios of their legs are equal. Also note that AD = AB + BD.

BC/AB = DE/AD

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2 years ago

Use synthetic division to find P (-10) for P(x)=2x^3+14x^2-58x

Savatey [412]

The polynomial remainder theorem states that the remainder upon dividing a polynomial $p(x)$ by $x-c$ is the same as the value of $p(c)$ , so to find $p(-10)$ you need to find the remainder upon dividing

$\dfrac{2x^3+14x^2-58x}{x+10}$

You have

..... | 2 ... 14 ... -58
-10 | ... -20 ... 60
--------------------------
..... | 2 ... -6 .... 2

So the quotient and remainder upon dividing is

$\dfrac{2x^3+14x^2-58x}{x+10}=2x-6+\dfrac2{x+10}$

with a remainder of 2, which means $p(-10)=2$ .

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3 years ago

Consider the original trapezoid and the enlargement.

Vika [28.1K]

Answer:

Step-by-step explanation:

2x4=8

5x4=20

2x4=8

each side is multipled by 4

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3 years ago