3 years ago

- What is the equation of a cirde with a center

Mathematics

2 answers:

wlad13 [49]3 years ago

6 0

Answer:

Step-by-step explanation:

The equationof a circle:

$(x-h)^2+(y-k)^2=r^2$

(h, k) - center

r - radius

We have center = (4, -1) → h = 4, k = -1, and r = 9.

Substitute:

$(x-4)^2+(y-(-1))^2=9^2\\\\\huge\boxed{(x-4)^2+(y+1)^2=81}$

babymother [125]3 years ago

4 0

( C ) (x-4)+(+1=9 there is

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Harlamova29_29 [7]

Answer:

C) Y= x-1/2

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3 years ago

A young women walked into a cafe and asked for a drink of water the man behind the counter suddenly pulled out a gun and pointed

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3 years ago

-3 < 5 true or false

irakobra [83]

Answer:

true

Step-by-step explanation:

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2 years ago

Read 2 more answers

Simplify the expression. 6x - 3 -9x - 2 Like terms

Alexeev081 [22]

6x-3-9x-2

6x-9x = -3x

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the the equation is: -3x-5

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3 years ago

Asanji left the science museum and drove toward the lake at an average speed of 45 km/h. Sometime later Huong left driving in th

Cloud [144]

Answer:

Asanji drove for $5$ hours before Huong caught up

Step-by-step explanation:

Let the time for which Asanji drove alone is "X" hours

Asanji and Huong met after three hours of driving of Huong.

Total time for which Asanji drove $= X+3$ hours

Thus, distance travelled by Asanji in $X+3$ hours is equal to distance travelled by Huong in $3$ hours

$45 ( X+3) = 75 (3)\\$

On solving the above equation, we get -

$45 X + (45 *3) = 75 *3\\45 X = (75-45)*3\\45 X = 30 *3 \\X = \frac{30 *3}{45} \\X = 2$

Asanji drove for $3 + 2 = 5$ hours before Huong caught up

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3 years ago