How can you show that two objects are proportional?

1 answer:

8 0

You can make a table that shows the data that you get, and there you can cross multiply. Or, you can make a graph (x,y) and see ifbit touches the origin, and is a straight line. I hope I helped you! :3

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What is the product of 5 and the difference of 20 and 12?

dezoksy [38]

Answer:

Step-by-step explanation:

5*(20-12) =

5* 8

8 0

4 years ago

(5/6)^4x=(36/25)^9-x, please help solve for x, and the 9-x is all superscript

stiks02 [169]

$\frac{36}{25}=\frac{6^2}{5^2}=\left(\frac{6}{5}\right)^2=\left(\frac{5}{6}\right)^{-2}\\\\therefore:\\\\\left(\frac{5}{6}\right)^{4x}=\left[\left(\frac{5}{6}\right)^{-2}\right]^{9-x}\\\\\left(\frac{5}{6}\right)^{4x}=\left(\frac{5}{6}\right)^{-2(9-x)}\iff4x=-2(9-x)\\\\4x=-2\cdot9-2\cdot(-x)\\\\4x=-18+2x\ \ \ \ \ |subtract\ 2x\ from\ both\ sides\\\\2x=-18\ \ \ \ \ \ |divide\ both\ sides\ by\ 2\\\\\boxed{x=-9}$

$Use:\\a^{-n}=\left(\frac{1}{a}\right)^n\\\\\left(a^n\right)^m=a^{n\cdot m}\\\\\left(\frac{a}{b} \right)^n=\frac{a^n}{b^n}$

6 0

3 years ago

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The perimeter of a square is equal to the circumference of a circle with a radius of 10 cm.

marta [7]

Answer:

C = 2*3.14*10 = 62.8 cm = P of square

Area=1/16 * p2

246.49 cm2

3 0

4 years ago

PLZZ HELP What is the value of x?

hichkok12 [17]

Answer:

Step-by-step explanation:

Triangle is a 45 45 90 right triangle

Ratio of leg : hypotenuse = x : x√2

Given leg = 7√2

so hypotenuse x = 7√2 * √2 = 14

7 0

3 years ago

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Which of the following is a linear function?

Rama09 [41]

$\boxed{ \textbf{ \huge{Answer: A}}}$

A linear function has 1 as the highest power of the variable.

A. f(x) = 2 - 7x

here, the highest power of the variable x is 1.
Hence it is a LINEAR function.
___________

B. f(x) = 2 + x + x^2

here, the highest power of the variable x is 2.
Hence it is NOT a linear function.
_______________

$c.f(x) = \sqrt{2 + 7x}$
here, the highest power of the variable x is 1/2.
Hence it is NOT a linear function.
________________

6 0

3 years ago