Are these two quantities inversely proportional?Are these two quantities inversely proportional?

1 answer:

5 0

Because you do not provide an example, it is hard to tell. However, an inversely proportional equation would look something like this: y=k/x.

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Anja is creating a triangle using 3 straws. The 2 shorter straws have lengths of 20cm and 21cm. How long, in centimeters, should

Bezzdna [24]

Answer:

The answer is 29 cm.

Step-by-step explanation:

The side we are looking for is the longest side of the right triangle, called a hypotenuse.

To find it, we first have to square 20, which equals 400. Then, square 21, which equals 441. Next, add 400 and 441 to make 841, then find the square root of 841, which is 29.

I hope this helped! :-)

4 0

3 years ago

- 8 - 7(2x + 3) = 3(1 - 10) simplified

Dmitry [639]

-15(2x + 3) = -27
5(2x + 3) = 9
10x + 15 = 9
10x = -6
x= 0.6

7 0

4 years ago

Write a system of linear equations with -3,9 as its solution

lozanna [386]

Let the variable of the equation be x.

Solution of the equation is given to us, hence,

x = -3 and x = 9

x + 3 = 0 and x - 9 = 0

Multiplying,

(x + 3)(x - 9) = x² - 9x + 3x - 27 = x² - 6x - 27

Hence, the linear equation with solution -3 and 9 is x² - 6x - 27.

4 0

4 years ago

What is 3 wholes and 3/4 divided by 165

Irina18 [472]

Answer:

0.2272727

Step-by-step explanation:

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8 0

4 years ago

X^2-5x-8=0 find the roots (zeros)

melomori [17]

Answer:

$x_1=\dfrac{5-\sqrt{57}}{2}\ ,\quad x_2=\dfrac{5+\sqrt{57}}{2}$

Step-by-step explanation:

$x^2-5x-8=0\\\\a=1\,,\ b=-5\,,\ c=-8\\\\x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\x=\dfrac{-(-5)\pm\sqrt{(-5)^2-4\cdot1\cdot(-8)}}{2\cdot1}=\dfrac{5\pm\sqrt{25+32}}{2}=\dfrac{5\pm\sqrt{57}}{2}$

5 0

4 years ago