All categories

1 year ago

The equation of this circle is (x + )2 + (y + )2 = .

Mathematics

1 answer:

Alex787 [66]1 year ago

7 0

Answer:

x2 + y2 = r2, and this is the equation of a circle of radius r whose center is the origin O(0, 0). The equation of a circle of radius r and center the origin is x2 + y2 = r2.

I think this is the answer.

You might be interested in

1. What is? A square of side 8 cm? plzz hurry

DedPeter [7]

Answer:

= 8 × 8 sq. cm. = 64 sq. cm.

answer 64 sq

8 0

2 years ago

Read 2 more answers

Need help I don’t know the answer to this.

Bond [772]

Answer:

what grade is this

Step-by-step explanation:

I'm very confused is this algebra?

8 0

2 years ago

Lars deposited $50 into a savings account for which interest is compounded quarterly. According to the rule of 72, what interest

Ivanshal [37]

Answer: C 2.5%

Step-by-step explanation:

The "Rule of 72" is a easy way to calculate how much time an investment will take to double with a given fixed annual rate of interest.

Just we have to divide 72 by the annual rate of return(r), we can get a rough estimate of how many years it will take to double the initial investment .

Now, in given problem: Let 'r' be the rate of interest

Time to double the amount=29 years

Thus by rule 72 ,

$\frac{72}{r}=29\\\Rightarrow\ r=\frac{72}{29}=2.4827\%\approx2.5\%$

Therefore, C is the right option.

3 0

2 years ago

Read 2 more answers

What math terms is -3 categories in

oksian1 [2.3K]

Idek i need points man

4 0

2 years ago

Which sampling method is MOST appropriate in estimating the average number of votes for each candidate in an election across a c

kaheart [24]

Answer:

B. Stratified sampling, because there are specific subgroups to investigate.

Step-by-step explanation:

Stratified Sampling is a sampling method and is used when the population has subgroups with different characteristics. Random sampling is applied in each of the sub-groups proportional to their size and then these samples combined together to create sample of the study.

Since there are three towns with people from different occupations ( retirees,business owners, office workers), it is better to use stratified sampling method.

4 0

2 years ago