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3 years ago

Find the area and the circumference of a circle with radius 7yd

Mathematics

2 answers:

Rainbow [258]3 years ago

5 0

$\boxed {\text {Area of circle =} \pi r^2}$

Area of circle = π (7)² = 49π = 153.94 yd²(nearest hundredth)

$\boxed {\text {Circumference of circle =} 2 \pi r}$

Circumference of circle = 2 π (7) = 14π = 43.98 yd² (nearest hundredth)

Anettt [7]3 years ago

4 0

Area= 153.86 yd

Circumference

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Leno4ka [110]

Answer:

$\mathrm{Range\:of\:}x^2:\quad \begin{bmatrix}\mathrm{Solution:}\:&\:f\left(x\right)\ge \:0\:\\ \:\mathrm{Interval\:Notation:}&\:[0,\:\infty \:)\end{bmatrix}$

The graph is also attached below.

Step-by-step explanation:

Given the function

$y=x^2$

We know that the range of a function is the set of values of the dependent variable for which a function is defined.

$\mathrm{For\:a\:parabola}\:ax^2+bx+c\:\mathrm{with\:Vertex}\:\left(x_v,\:y_v\right)$

$\mathrm{If}\:a$

$\mathrm{If}\:a>0\:\mathrm{the\:range\:is}\:f\left(x\right)\ge \:y_v$

$a=1,\:\mathrm{Vertex}\:\left(x_v,\:y_v\right)=\left(0,\:0\right)$

$f\left(x\right)\ge \:0$

Thus,

$\mathrm{Range\:of\:}x^2:\quad \begin{bmatrix}\mathrm{Solution:}\:&\:f\left(x\right)\ge \:0\:\\ \:\mathrm{Interval\:Notation:}&\:[0,\:\infty \:)\end{bmatrix}$

The graph is also attached below.

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2 years ago

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rewona [7]

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3 years ago

How many pounds does 64 ounces weigh?

wel

Answer:

4 lbs

Step-by-step explanation:

There are 16 ounces in a pound, so divide 64 by 16 to get the number of pounds. 64 ÷ 16 = 4 lbs

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