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kolbaska11 [484]
3 years ago
13

If you need carpet that is 6 1/2 long and 5 3/4 wide how many square feet do you need for the carpet??

Mathematics
1 answer:
Orlov [11]3 years ago
6 0

Find the area

A= l*w

A = (6 1/2) * (5 3/4)

6 1/2 =  (2*6+1)/2 =13/2

5 3/4 = (4*5+3)/4 = 23/4

A = 13/2 * 23/4

299/8

37 3/8

37 3/8 ft^2

Answer: 37  3/8 ft^2

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Please please give answer
rodikova [14]

Answer:

Then the total area is  116 cm^2 which agrees with answer D

Step-by-step explanation:

Notice we need to calculate the area of two rectangles (one larger at the bottom and a smaller one on top)

The Area of a rectangle is the product: base x height

In our case :

Area of Big rectangle = 12 cm x 7 cm = 84 cm^2

Area of smaller rectangle = 8 cm x 4 cm = 32 cm^2

Then the total area is: 84 cm^2 + 32 cm^2 = 116 cm^2

8 0
3 years ago
F(x)=-2x-1 and g(x)=x^2-1. Find (fog)(-5).
serg [7]

Answer: - 49

Step-by-step explanation:

f(x) = -2x - 1

g(x) = x^{2} - 1

fg(x) = f (x^{2} - 1) , we just put in the value of g(x) , the next thing is to substitute x^{2} - 1 for the value of x in f(x) , that is

fg(x) = -2(x^{2} - 1) - 1

fg(x) = -2x^{2} + 2 - 1

fg(x) = -2x^{2} + 1

Therefore : fg(-5) means we will substitute -5 for x in fg(x) , that is

fg(-5) = -2 ((-5)^{2} + 1

fg(-5) =  -2(25) + 1

fg(-5) = -50 + 1

fg(-5) = -49

7 0
3 years ago
What makes (a + 2)(b – 9) = 0 true?
prohojiy [21]
B would have to equal 9 and a should equal -2 to get 0
5 0
3 years ago
Read 2 more answers
The ratio of the length to the width of a rectangle is 5:4. The length of the rectangle is 60 inches. What is the width?
Firlakuza [10]

\huge\boxed{\text{48 inches}}

We know that \frac{\text{length}}{\text{width}} = \frac{60}{\text{width}} = \frac{5}{4}.

Solve using cross multiplication of the last two fractions. I will use w to represent the width of the rectangle. 60*4=w*5

Multiply. 240=5w

Divide both sides of the equation by 5. \boxed{48}=w

7 0
3 years ago
Read 2 more answers
What is 0.0003124 in scientific notation?
Shalnov [3]

3.124 * 10^-4

since your decimal is coming forward you need the exponent to be negative

3 0
3 years ago
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