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3 years ago

Find the equation for the circle with center (4,-5) and passing through (5,-4)

Mathematics

1 answer:

jasenka [17]3 years ago

7 0

Answer:

(x -4)^2 +(y +5)^2 = 2

Step-by-step explanation:

The equation of a circle centered at (h, k) through point (p, q) is ...

(x -h)^2 +(y -k)^2 = (p -h)^2 +(q -k)^2

Filling in your given numbers gives ...

(x -4)^2 +(y +5)^2 = (5-4)^2 +(-4+5)^2

(x -4)^2 +(y -5)^2 = 2

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The solids are similar. Find the surface area S or the volume V of the smaller solid. If applicable, round your answer to the ne

wel

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3 years ago

Curtis threw 15 darts at a dartboard.40% of his darts hit the bull’s eye.how many darts not hit the bulls eye?

Harlamova29_29 [7]

Answer:

Step-by-step explanation:

The number of darts that failed to hit the bulls eye is 40% of 15 subtracted from 15

Since 40% of the darts hit the bulls eye .

Therefore

40% of 15

40/100 x 15

0.4 x 15

This means that 6 darts hit the bulls eye.

Therefore,number of darts that did not hit the bulls eye is

15 - 6 = 9

9 darts failed to hit the bulls eye

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3 years ago

What is the product of any number, x, multiplied by 1? explain how you know

Sav [38]

It would be still be X. Any number times 1 is that number. For example 3x1=3 and 325x1=325 :)

5 0

3 years ago

Read 2 more answers

99 POINTS

inysia [295]

Answer:

Part a) The exact area of the sidewalk is $80\pi\ m^{2}$

Part b) The approximate area of the sidewalk is $251.2\ m^{2}$

Step-by-step explanation:

we know that

The area of the sidewalk is equal to the area of the outer circle minus the area of the inner circle

Part a) Find the exact area of the sidewalk

$A=\pi (12)^{2} -\pi (8)^{2}$

$A=\pi [144-64]$

$A=80\pi\ m^{2}$

Part b) Find the approximate area of the sidewalk

assume $\pi=3.14$

substitute

$A=80(3.14)=251.2\ m^{2}$

5 0

3 years ago

Jacob has 12 fish, and all of them are either yellow or red. There are twice as many yellow fish as red fish. How many yellow fi

Vinil7 [7]

Answer:

yellow : 8

Red : 4

Step-by-step explanation:

Yellow : Y and Red : R

R : Y = 12

They need to add up to 12 because its the total.

We know that yellow is twice the amount so

4×2= 8

so if yellow was to be times by 2 itd be 8 which will still add up to 12.

4 0

3 years ago