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3 years ago

11

What is the standard equation for the circle passing through (0,9) centered at the origin

1 answer:

Yanka [14]3 years ago

4 0

Start with x^2 + y^2 = r^2, where r signifies radius. Subst. 0 for x and 9 for y:

0^2 + 9^2 = r^2. Therefore, r = 9.

The std eqn is x^2 + y^2 = 9^2. this is a special case of

(x-h)^2 + (y-k)^2 = r^2 and is appropriate because the origin is at (0,0).

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The system of equations is graphed on the coordinate plane. y=−1/2x−1y=1/4x−4

nikdorinn [45]

(4,-3) i took the test i'm 100% sure
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3 years ago

Read 2 more answers

5(2x + 6) = 8x + 48 <br><br> simplify.

lord [1]

10x+30=8x+48

2x+30=48

2x=18

x=9

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4 years ago

Read 2 more answers

17.5% of 120 can be worked out using the following method find 10% of 120=12 then 5% of 120=6 then 2.5% of 120=3. Adding 17.5% o

Oliga [24]

Answer:

17.5% of 360 = 63

Step-by-step explanation:

We are given a process of finding 17.5% of 120. Following the same process we have to determine the 17.5% of 360.

17.5% can be break down as 10% + 5% + 2.5%

Thus,

STEP 1 : Find 10% of 360 , we get,

$\frac{10}{100} \times 360=36$

STEP 2 : find 5% of 360, we get,

$\frac{5}{100} \times 360=18$

STEP 3: find 2.5% of 360 , we get,

$\frac{2.5}{100} \times 360=9$

STEP 4: 17.5% of 360 = 10% of 360 + 5% of 360 + 2.5% of 360

⇒ 17.5% of 360 = 36 + 18 + 9

⇒ 17.5% of 360 = 63

8 0

3 years ago

Solve the inequality: 3p - 16 < 20

Alekssandra [29.7K]

Isolate the p. First, add 16 to both sides

3p - 16 (+16) < 20 (+16)

3p < 36

Next, isolate the p. Divide 3 from both sides

3p/3 <36/3

p < 12

p < 12 is your answer

hope this helps

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The sum of 7 and three times a<br> number is at least 13.

inessss [21]

Answer:

1.5 or 3/2

Step-by-step explanation:

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