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3 years ago

What is the value of x in the model below?

Mathematics

1 answer:

just olya [345]3 years ago

5 0

Answer:

The value of x is 3, in the shown model

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The lengths of the sides of a rectangular window have the ratio 1.2 to 1. The area of the window is 811.2 square inches. What ar

GrogVix [38]

Answer:

a. 26 inches by 31.2 inches

Step-by-step explanation:

The lengths(X) of the rectangular is 1.2 times longer than the width (Y), so you can put it into this equation

x= y * 1.2

x= 1.2 y

The area of the window is 811.2 square inches, so you can put this equation

x * y= 811.2

Combining both equations, you can get

x * y= 811.2

(1.2y) * y = 811.2

1.2y^2= 811.2

y^2= 676

y= 26

x= 1.2 y

x= 1.2(26)= 31.2

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4 years ago

Darlene is building a rectangular fence. the length is 8 feet longer than the width. the perimeter of the rectangle is 76 feet.

Llana [10]

Answer:8 feet

Step-by-step explanation:

4 0

2 years ago

HELP PLS!! <br> Round $1.92 to the nearest 10 cents

e-lub [12.9K]

Answer: $1.90

explanation: bc you would round 92 to 90

8 0

3 years ago

<img src="https://tex.z-dn.net/?f=%5Csqrt%7B45%7D%20%2B%5Csqrt%7B54%7D%20%2B%5Csqrt%7B56%7D%20%3D" id="TexFormula1" title="\sqrt

Artyom0805 [142]

$\sqrt{45}+\sqrt{54}+\sqrt{56}$

$\sqrt{45} = 3\sqrt{5}$

$\sqrt{54} = 3\sqrt{6}$

$\sqrt{56} = 2\sqrt{14}$

<em>so it's equal to:</em>

$=3\sqrt{5}+3\sqrt{6}+2\sqrt{14}$

<h3><em>Hope I helped you!</em></h3><h3><em>Success!</em></h3>

<em>by a random romanian guy</em>

5 0

3 years ago

Read 2 more answers

If f(x) = 7+ 4x and g(x) = 1/2,

olchik [2.2K]

270

<h3>Further explanation</h3>

<u>Given:</u>

$\boxed{ \ f(x) = 7 + 4x \ }$
$\boxed{ \ g(x) = \frac{1}{2x} \ }$

<u>Question:</u>

What is the value of $\boxed{ \ \bigg( \frac{f}{g} \bigg)(5)? \ }$

<u>The Process:</u>

The form of $\boxed{ \ \bigg( \frac{f}{g} \bigg)(x) \ }$ means that f(x) is divided by g(x).

$\boxed{\boxed{ \ \bigg( \frac{f}{g} \bigg)(x) \ } \rightarrow \boxed{ \ \frac{f(x)}{g(x)} \ }}$

Let us solve the problem.

$\boxed{ \ \bigg( \frac{f}{g} \bigg)(x) = \frac{7 + 4x}{\frac{1}{2x}} \ }$

$\boxed{ \ \bigg( \frac{f}{g} \bigg)(x) = (7 + 4x) \times \frac{2x}{1} \ }$

Thus, we get $\boxed{{ \ \bigg( \frac{f}{g} \bigg)(x) = 14x + 8x^2 \ }}$

And now, we can calculate the value of $\bigg( \frac{f}{g} \bigg)(5)$ .

$\boxed{ \ \bigg( \frac{f}{g} \bigg)(5) = 14(5) + 8(5)^2 \ }$

$\boxed{ \ \bigg( \frac{f}{g} \bigg)(5) = 70 + 200 \ }$

Thus, the value is 270.

- - - - - - - - - - -

Alternative thinking

$\boxed{ \ \bigg( \frac{f}{g} \bigg)(5) = \frac{7 + 4(5)}{\frac{1}{2(5)}} \ }$

$\boxed{ \ \bigg( \frac{f}{g} \bigg)(5) = (7 + 20) \times 10} \ }$

$\boxed{\boxed{ \ \bigg( \frac{f}{g} \bigg)(5) = 270 \ }}$

<h3>Learn more</h3>

If f(x) = x² – 2x and g(x) = 6x + 4, for which value of x does (f o g)(x) = 0? brainly.com/question/1774827
Solve for the value of the function composition brainly.com/question/2142762
If g(x) is the inverse of f(x), what is the value of f(g(2)) brainly.com/question/1517760

Keywords: if, f(x), g(x), function, divide by, the value, (f/g)(5), 5, 270

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5 0

3 years ago