All categories

3 years ago

How to we get radius

1 answer:

6 0

Just remember to divide the diameter by two to get the radius. If you were asked to find the radius instead of the diameter, you would simply divide 7 feet by 2 because the radius is one-half the measure of the diameter. The radius of the circle is 3.5 feet. You can also use the circumference and radius equation

You might be interested in

Pls help i dont know this one

telo118 [61]

Answer:

The answer is A :)

Step-by-step explanation:

6 0

3 years ago

James read 4 pages in a book in 6 minutes. How long would it take him to read 6 pages

fenix001 [56]

This is probably directly proportional
disregarding other factors such as eyestrain, fires, and apocalypses.
4:6
treat as fraction
4/6=2/3
how long to read 6
6/x=2/3
multiply 2/3 by 3/3 since 2 times 3=6
6/x=6/8
x=8

8 mins

8 0

3 years ago

Read 2 more answers

Stephen had 24 miniature cars. he gave 4 cars to his brother.then he divided 4 equally among his friends .write an expression to

Svetlanka [38]

Total number of cars with Stephen = 24

Stephen gave 4 cars to his brother,

24-4 = 20 cars are left with Stephen.

Then, Stephen divided 4 equally among his friends.

That means Stephen divided 4 cars among the friends.

So, $\frac{24-4}{5} = 4$

So, Stephen divided 4 miniature cars among 5 friends.

The expression $\frac{24-4}{5} = 4$ denotes the words given in the above context.

6 0

3 years ago

Help Me With Geometry Please ?

guapka [62]

You use the pythagorean theorem to calculate the missing sides.
formula: a^2+b^2=c^2
a=leg, b=leg, c=hypotenuse.
substitute the lengths in and solve for the missing length.
1. 5^2+12^2=c^2 simplify exponents
25+144=c^2 add
169=c^2 square root both sides
a.13
2. 8^2+b^2=10^2
b.6
3. 15^2+20^2=c^2
b.25
4. Distance formula 5sqrt2
c.7

6 0

4 years ago

A stock market analyst notices that in a certain year, the price of IBM stock increased on 131 out of 252 trading days. Can thes

san4es73 [151]

Answer:

95% confidence interval for the proportion of days that IBM stock increases.

(0.45814 , 0.58146)

Step-by-step explanation:

Step:1

Given that a stock market analyst notices that in a certain year, the price of IBM stock increased on 131 out of 252 trading days.

Given that the sample proportion

$p^{-} = \frac{131}{252} = 0.5198$

Level of significance = 0.05

Z₀.₀₅ = 1.96

Step:2

95% confidence interval for the proportion of days that IBM stock increases.

$(p^{-} - Z_{0.05} \frac{\sqrt{p(1-p)} }{\sqrt{n} } , p^{-} + Z_{0.05} \frac{\sqrt{p(1-p)} }{\sqrt{n} } )$

$(0.5198 - 1.96(\sqrt{\frac{0.5198(1-0.5198)}{252} } , 0.5198 +1.96(\sqrt{\frac{0.5198(1-0.5198)}{252} })$

(0.5198 - 0.06166 , 0.5198+0.06166)

(0.45814 , 0.58146)

Final answer:-

95% confidence interval for the proportion of days that IBM stock increases.

(0.45814 , 0.58146)

3 0

3 years ago