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nasty-shy [4]
3 years ago
13

What is the verbal expression of 3x-7

Mathematics
1 answer:
jonny [76]3 years ago
8 0

Answer:

Step-by-step explanation:

Three times a number decreased by 7

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Find the area of this irregular polygon.
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Answer:

970m^{2}

Step-by-step explanation:

This polygon can be divided in two figures: one is a triangle, an the other one is a square.

We'll begin calculating the triangle's area, using the following formula:

At= \frac{b.h}{2}

Where:

H= height = 30 m

B = 9 m + 9 m + 20 m = 38 m

As you can see, I added both sides of the triangle that measure 9 m and also the lenght of the square that measures 20 m! This added up is what the base of the triangle measures on total.

At= \frac{38 m .30 m}{2}

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Now we are going to calculate the square's area, that is much more simple:

As= L^{2}

Where:

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To know the whole figure's area, we add up both areas:

A = At+As = 570m^{2} +400m^{2}=970m^{2}

3 0
3 years ago
A rectangle’s length is 6 more than 4 times its width. If the perimeter is 42, how long is the rectangle
Ainat [17]

The Length of the rectangle is 18 unit.

<h3>What is the Perimeter of a Rectangle?</h3>

Perimeter of rectangle = 2(length + width)

Given the following:

Let x represent the width of the rectangle

Width of the rectangle = x

Length of the rectangle = 4x + 6

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Therefore, we would write the following equation to find x based on the formula for finding the perimeter of a rectangle:

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Length of the rectangle = 4(3) + 6

Length of the rectangle = 18 unit.

Learn more about perimeter of rectangle on:

brainly.com/question/24571594

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2 years ago
In a linear equation, the independent variable increases at a constant rate while the dependent variable decreases at a constant
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The best and most correct answer among the choices provided by your question is the second choice or letter B.

<span>The slope of this line is NEGATIVE.</span>

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
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