All categories

3 years ago

Please help me !!! Need done now I will reward brainliest

Mathematics

2 answers:

xeze [42]3 years ago

6 0

Circumference is simply:
2*r*π or d*π

r = radius
d= diameter
C = circumference (perimeter of circle)

If d = 5m then C is d*π = 5π meters

If r = 2m then C is 2*r*π = 2*2*π = 4π meters

If d = 3m then C is d*π = 3π meters

If r = 3m then C is 2•r•π = 2*3*π = 6π meters

If d =2m then C is d*π = 2π meters

Crazy boy [7]3 years ago

4 0

Okay so if the line goes through half of the circle it's called the radius. If it goes through the whole thing it's the diameter. The equation to find the circumference is pi times diameter. So the first one is 5pi, second is 4pi, third is 3pi, fourth is 6pi, and the last one is 2pi.

You might be interested in

Which fraction is proportional to 1/3? A. 3/1 B. 5/12 C. 2/6 D. 5/9

faust18 [17]

C is the answer to your question

7 0

3 years ago

Read 2 more answers

Which fraction is greater and why? 1/51 or 1/52

GaryK [48]

Answer:

1/51

Step-by-step explanation:

that is the answer

4 0

3 years ago

Read 2 more answers

A student wanted to estimate the number of chocolate chips in a commercial brand of cookie. He sampled 100 cookies and found an

m_a_m_a [10]

Answer: A. (8.4,12.6)

Step-by-step explanation:

Confidence interval $(\mu)$ is given by :-

$\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

, where n is the sample size

$\sigma$ = Population standard deviation.

$\overline{x}$ = Sample mean

$z_{\alpha/2}$ = Two tailed z-value for significance level of $\alpha$ .

Given : Confidence level = 99% = 0.99

Significance level = $\alpha=1-0.99=0.01$

By standard normal z-value table ,

Two tailed z-value for Significance level of 0.01 :

$z_{\alpha/2}=z_{0.005}=2.576$

Also,

n=100

$\sigma= 8$

$\overline{x}=10.5$

Then, the required 99% confidence interval for the average number $(\mu)$ of chips per cookie :-

$10.5\pm (2.576)\dfrac{8}{\sqrt{100}}\\\\ =10.5\pm 2.0608\\\\=(10.5-2.0608,\ 10.5+2.0608)=(8.4392,\ 12.5608)\approx(8.4,\ 12.6)$

Hence, the 99% confidence interval for the average number of chips per cookie = (8.4,12.6)

5 0

3 years ago

7, 244, 990 square miles

arlik [135]

<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3

I swear I wil answer you but what exactly is the question

here?

<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3

7 0

3 years ago

Read 2 more answers

Connie is making a cardboard ice-cream truck for a school project. She painted the body of the truck on a cardboard template. Ho

wel

Answer:

208 square inches of cardboard.

Step-by-step explanation:

We have been given that Connie is making a cardboard ice-cream truck for a school project. The truck is 8 inches long, 4 inches wide, and 6 inches tall. We are asked to find the amount of cardboard used by Connie to make the truck.

We will use surface area of cuboid to solve our given problem.

$\text{Surface area of cuboid}=2(lw+wh+hl)$