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Angelina_Jolie [31]
3 years ago
15

A circle in the XY-plane has center (5, 7) and radius 2. Which of the following is an equation of the circle?

Mathematics
1 answer:
MAXImum [283]3 years ago
6 0

Answer: A, because the equation of a circle is (x-h)^2+(y-k)^2=r^2. So, if the point of the center is (5,7) and the radius 2 , then on the equation should be changed as negative and the radius should be multiplied as 4, which is (x-5)^2+(y-7)^2=4

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The admission to the fair is $5 and the cost per ride is 50 cents. If his parents give hime $20, write and solve a linear equati
solniwko [45]

Answer:

Step-by-step explanation:

The admission to the fair is $5 and the cost per ride is 50 cents.

Let the number of rides that he can go on be x

If one ride costs 50 cents, x rides will cost 50×x = 50x cents. Converting 50 cents to dollar, it becomes 50/100 = $0.5.

So x rides will cost $0.5x

If his parents gave him $20, he will pay $5 to be admitted into the fair. He would be left with 20- 5 = $15

The equation to find how many rides he can go on will be

0.5x = 15

Since one ride costs $0.5

x rides cost $15

x = 15/0.5 = 30

He can go on 30 rides

8 0
3 years ago
Can someone help plz
olchik [2.2K]

Answer:

A.) 2x - 9x - 30 = -6

Step-by-step explanation:

hello !

to solve this system of equations, first, we substitute the equation y = 3x + 10 to the <em>y </em>variable in the equation 2x-3y = -6. Therefore, we get:

2x - 3(3x+10)=-6

now, we simplify by multiplying -3 to the variables inside the parenthesis, which, in short, is also called the distributive property. thus, we get:

2x - 9x - 30 = -6

4 0
3 years ago
Who tryna help me lmaaoo
mina [271]
It is b ok I got you
7 0
2 years ago
Please Please help me with this  problem
Mkey [24]
The work become much simpler if you do it in a table. Hope this helps!!

5 0
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The Answer to your problem is:

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