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3 years ago

Find the area of the figure. PLZ HURRY

Mathematics

2 answers:

Alex3 years ago

4 0

Answer:

132 cm²

Step-by-step explanation:

Area = rectangle + trapezoid

(7 × 4) + [½(7 + 19) × 8]

28 + 204

132 cm²

Serjik [45]3 years ago

3 0

Answer:

132 cm²

Step-by-step explanation:

This is a composite figure, so we want to find the area of the top rectangle and the bottom trapezoid and then add those together.

The area of a rectangle is denoted by: A = lw, where l is the length and w is the width. Here, the length is l = 4 and the width is w = 7, so the area is:

A = lw

A = 7 * 4 = 28 cm²

The area of a trapezoid is denoted by: A = $\frac{(b_1+b_2)*h}{2}$ , where b1 and b2 are the bases and h is the height. Here, the two bases are 7 and 19 and the height is h = 8. So, the area is:

A = $\frac{(b_1+b_2)*h}{2}$

A = $\frac{(7+19)*8}{2}=26 *4=104$ cm²

Add these together:

28 + 104 = 132 cm²

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3 years ago

A roof repairman charges a $60 consult fee, and then $45 per hour to complete repairs. if the homeowner pays a total of $195, ho

Thepotemich [5.8K]

The time spent by the repairman there will be 3 hours so the correct answer is option D.

<h3>What is an expression?</h3>

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Given that:-

A roof repairman charges a $60 consult fee, and then $45 per hour to complete repairs. if the homeowner pays a total of $195.

The time will be calculated as:-

Total amount = $195

Now the fixed consulting cost will be $60 and will be deducted from the

total amount.

Variable cost = 195 - 60 = 135

The $45 per hour charge so for $145 the time will be:-

Time = 135 / 45

Time = 3 Hours

Therefore the time spent by the repairman there will be 3 hours so the correct answer is option D.

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