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Nuetrik [128]
3 years ago
13

Whats the radius of a circle whose equation is x^2+y^2=16

Mathematics
2 answers:
kvv77 [185]3 years ago
8 0

Answer:

4

Step-by-step explanation:

We can write the equation of a circle as

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

where (h,k) is the center and r is the radius

x^2 + y^2 = 16

can be rewritten as

(x-0)^2 + (y-0)^2 = 4^2

Where the center is (0,0) and the radius is 4

Zina [86]3 years ago
4 0

Answe

Step-by-step explanation:

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Ms. Fox loves to eat cereal and she notices that she only has 1/3 of the box of cereal left. If she spread that amount across 5
IceJOKER [234]

Answer:

1/15

Step-by-step explanation:

Ms. Fox loves to eat cereal and she notices that she only has 1/3 of the box of cereal left. If she spread that amount across 5 days, how much cereal will she have for each day?

The amount of cereal she would have per day is calculated as:

5 days = 1/3 of the box

1 day = x

Cross Multiply

5 days × x = 1 day × 1/3 of the box

x = 1/3 ÷ 5

x = 1/3 × 1/5

x = 1/15 of the box

8 0
3 years ago
What is 0.000000685 written in scientific notation?
maria [59]

we have

0.000000685

we know that

0.000000685=\frac{685}{1,000,000,000} =\frac{685}{10^{9}}=685*10^{-9}

685*10^{-9} =6.85*10^{-7}

therefore

<u>the answer is</u>

6.85*10^{-7}

3 0
3 years ago
Read 2 more answers
Three cards are randomly drawn from an ordinary deck of playing cards without replacement .What is the probability the first car
saveliy_v [14]

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8 0
3 years ago
Me ayudan porfa? UnU
professor190 [17]

Answer:

c maybe 20

d maybe 33

and i dont know the last one

hola si esto está mal lo siento pero hice mi mejor esfuerzo y feliz gracias dando adiós que tengas un día bendito!

4 0
3 years ago
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Mark estimates that the distance from his house to his school is 15.5 mi. The actual distance is 14.5 mi.
lapo4ka [179]
So the error is 1 mile

I ask what % of 15.5 = 1

How you write this;

x/100 *15.5 = 1

15.5x = 100

x = 100/15.5

x = 6.451629 round up 6.45

% error is 6.45 %
7 0
3 years ago
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