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4 years ago

4.5+ what =7

ass="latex-formula">

Mathematics

1 answer:

34kurt4 years ago

3 0

Answer:

x = 2.5

Step-by-step explanation:

Ok so 4.5 + x = 7; we want to find x:

x = 7 - 4.5

x = 2.5

Hope this helps you, im going to sleep

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PLEASE ANSWER ASAP! THANK YOU! SUPER EASY! Mrs. Davis is planning to put a circular rug in her living room. The circumference of

netineya [11]

Answer:

Part A) The diameter of the rug is $10\ ft$

Part B) The radius of the rug is $r=5\ ft$

Part C) The area of the rug is $78.5\ ft^{2}$

Step-by-step explanation:

Part A) Find the diameter of the rug

we know that

The circumference of a circle (circular rug) is equal to

$C=\pi D$

where

D is the diameter

we have

$C=31.4\ ft$

$\pi=3.14$

substitute the values and solve for D

$31.4=(3.14)D$

$D=31.4/(3.14)=10\ ft$

Part B) Find the radius of the rug

we know that

The radius of a circle (circular rug) is half the diameter

we have

$D=10\ ft$

$r=D/2$

substitute

$r=10/2=5\ ft$

part C) What is the area the rug is covering?

The area of the circle (circular rug) is equal to

$A=\pi r^{2}$

we have

$r=5\ ft$

$\pi=3.14$

substitute

$A=(3.14)(5)^{2}$

$A=78.5\ ft^{2}$

7 0

4 years ago

Convert each radian measure into degrees

faltersainse [42]

Answer:

Step-by-step explanation:

$\frac{deg}{rad}=\frac{360}{2\pi }\\ \\ deg=\frac{360rad}{2\pi }\\ \\ deg=\frac{180rad}{\pi }$

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3 years ago

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3 years ago

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mr_godi [17]

Answer:

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3 years ago

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Makovka662 [10]

Area de la base es un hexagono: Nota: asumiendo que 39 cm son el lado de un hexagono. Menuda pizza.

A = 3*sqrt(3)/2*a^2 = 3*sqrt(3)/2*39^2 = 3951.67391746839972 cm^2

Hay dos base y tapa, doble:

7903.34783493679944 cm^2

Luego los lados verticales:

6 * 39 * 4.7 = 1099.8 cm^2

TOtal = 9003.14783 = 9003.147 cm^2 = 9003.15 cm^2

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4 years ago