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3 years ago

Can you help with these problems

Mathematics

2 answers:

e-lub [12.9K]3 years ago

8 0

C for three I think

nevsk [136]3 years ago

4 0

For the question 5 I think it is yes but I am not VERY SURE

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The radius of a circle is 3ft. What is the circumference of the circle? Use 3.14 for pie.<br>

iragen [17]

C= 2 times pi times radius
C= 2x 3.14X3
C=18.84 ft

Have a nice day.

3 0

2 years ago

Darya [45]

Answer:ummmmmmmmmmmmm

Step-by-step explanation:

7 0

3 years ago

Find the height of a cylinder that has a radius of 5 m and a volume of 450 mº.

jekas [21]

The height of cylinder is 5.73 meters.

Further explanation:

Given

$Volume\ of\ cylinder=V=450\ m^3\\Radius=r=5\ m$

The formula for calculating volume of cylinder is:

$V=\pi r^2h$

Putting the values of volume, radius and pi

$450=3.14*(5)*h\\450=3.14*25*h\\450=78.5*h\\h=\frac{450}{78.5}\\h=5.73\ meters$

The height of cylinder is 5.73 meters.

Keywords: Volume of cylinder, Surface area of cylinder

Learn more about volume of cylinder at:

#LearnwithBrainly

5 0

3 years ago

Find two different unit rates to represent this problem . Show your work

QveST [7]

Which problem ????????

7 0

3 years ago

In a genetics class, 6 students have GREEN eyes, 5 students have BLUE eyes, and 9 have HAZEL eyes. If a single student is picked

mixer [17]

EXPLANATION:

Given;

We are given that in a class there are the following groups of students;

$\begin{gathered} Green\text{ }eyes=6 \\ Blue\text{ }eyes=5 \\ Hazel\text{ }eyes=9 \end{gathered}$

Required;

We are required to calculate the probability that a student selected at random will have Green eyes OR Blue eyes.

Step-by-step solution;

To calculate the probability of an event, we shall use the following formula;

$P[Event]=\frac{Number\text{ }of\text{ }required\text{ }outcomes}{Number\text{ }of\text{ }all\text{ }possible\text{ }outcomes}$

To calculate the probability that a selected student will have green eyes;

$P[green]=\frac{6}{20}=\frac{3}{10}$

To calculate the probability that a selected student will have blue eyes;

$P[blue]=\frac{5}{20}=\frac{1}{4}$

The probability of event A or event B will be the addition of probabilities.

Therefore, the probability that a randomly selected student will have green or blue eyes will be;

$P[G]+P[B]=\frac{3}{10}+\frac{1}{4}$ $P[F]+P[B]=\frac{6}{20}+\frac{5}{20}=\frac{11}{20}$

Therefore,

ANSWER:

$P[G\text{ }orB]=\frac{11}{20}$

6 0

1 year ago