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3 years ago

Find the area of a circle using pie and the radius is 7ft

Mathematics

1 answer:

maks197457 [2]3 years ago

6 0

Answer: area = 49π $ft^{2}$

Step-by-step explanation:

area of a circle = π $r^{2}$

r = 7

area = π* $7^{2}$

area = 49π $ft^{2}$

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Help me plz with this 50 points if right

Monica [59]

Answer:

18 units.

Step-by-step explanation:

If you plot the points on a graph then you can clearly see where point D goes, (-2, 3). Then, you can find the side length, which is 4.5 units. Multiply that by 4 and you get 18 units.

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3 years ago

Read 2 more answers

What is Hiroshi's mistake?

natka813 [3]

Answer:

His mistake is that he didn't multiply it -18 to the negative sign correctly. The negative sign and -18 have to multiply which turns -18 to a positive 18.

Step-by-step explanation:

-15-(-18)=-15 +(-18)

-15+18= -15 -18

3=33

no solution

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3 years ago

A plane loses altitude at the rate of 5 meters per second. It begins with an altitude of 8500 meters. The planes altitude is a f

Pavlova-9 [17]

Answer:

28 minutes and 3 seconds

Step-by-step explanation:

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4 years ago

The rational function has a y-intercept of 7. What is the equation for this function?

Schach [20]

Answer:

$\large\boxed{f(x)=\dfrac{4}{x+2}+5}$

Step-by-step explanation:

$f(x)=\dfrac{a}{x-b}+c\\\\\text{We have}\\\text{(1) the vertical asymptote}\ x=-2.\ \text{Therefore}\ b=-2.\\\text{(2) the horizontal asymptote}\ y=5.\ \text{Therefore}\ c=5.\\\text{(3) the point (0, 7). Put the coordinates of the point to the equation}\\\text{of the function}\\y=\dfrac{a}{x-(-2)}+5\\\\7=\dfrac{a}{0+2}+5\qquad\text{subtract 5 from both sides}\\\\2=\dfrac{a}{2}\qquad\text{multiply both sides by 2}\\\\4=a\to a=4\\\\\text{Finally:}\\\\f(x)=\dfrac{4}{x+2}+5$

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3 years ago

using a single graph paper and the same axes draw the graph of the following equation x-y+1=0 and 3x+2y=12

Mashcka [7]

Answer:

See attachment

Step-by-step explanation:

We want to graph the following equation:

x-y+1=0

and

3x+2y=12

For the first equation: x-y+1=0

When x=0, we have 0-y+1=0---->y=1

We plot the point (0,1)

When y=0, we have x-0+1=0---->x=-1

We plot (-1,0)

We draw a straight line through these two points to get the graph of this line.

For the second equation: 3x+2y=12

When x=0,y=6. So we plot (0,6)

When y=0, x=4, So we plot (4,0)

We draw another straight line through them to obtain the graph in the attachment.

4 0

4 years ago