All categories

3 years ago

Please help ill give brainly and heart !!!! please !

Mathematics

1 answer:

Blizzard [7]3 years ago

5 0

Answer:

the answer is B

$v = \pi {r}^{2} h = 3.14 \times {3.5}^{2} \times 12.75 \\ v = 490.43$

Step-by-step explanation:

If you need any explanation in it or anything on math you can communicate with me on Whats on this number +201557831028 or in email or face or anything

I can help you solve what you want in mathematics in exchange for some money. If you want to, you can inform me about it and I will help you.

You might be interested in

What is the product of the complex numbers 3 - 4iand 6+i where i= -1

mixas84 [53]

Answer:

Step-by-step explanation:

Since i=-1, we can rewrite the equation as 3-[4(-1)} multiplied by 6+(-1). Since

4 x-1=, 3-(-4)=7. 6-1=5, and 7x5=35.

5 0

2 years ago

Read 2 more answers

Free fall reaches 216km per hour. What is rate in meters per second.? How many meters fall during 20 seconds free fall?

lakkis [162]

Given,

Rate of free fall = 216 km/h

Solution,

km/h to m/s is converted as follows :

$216\ \dfrac{km}{h}=216\times \dfrac{1000\ m}{3600\ s}\\\\=60\ m/s$

So, the rate of fall is 60 m/s.

If t = 20 s

Assume, initial velocity = 0

It will move under the action of gravity.

Using equation of motion,

$h=ut+\dfrac{1}{2}gt^2\\\\h=0+\dfrac{1}{2}\times 10\times 20^2\\\\h=2000\ m$

Hence, this is all for the solution.

4 0

3 years ago

How does using a bar diagram help you in predicting the solution to ratio and rate problems?

jeka94

Bar graph display directly the varibales which are the rate and ratio of the numbers to visualize and display the results, these contrasting the different outcomes. On the contrary, histogram is used in grouped frequency parameters. Moreover, as little as the given five parameters or data set this will be ineffective and will result to a bar graph only and basically, the suited option is the aforementioned vertical graph to display the numbers. To expound on the definition of histogram it is used when the frequency is grouped. For example the data set of 1-5, 6-10, 11-15 and 16-20 this now can be used and applied to illustrate histogram because of the number and quantity of the given data.<span>
</span>

3 0

3 years ago

0.5% of 490 is what number show work please

Genrish500 [490]

You would set it up: .5/100 = x/490 and then cross multiply .5 time 490 and 100 times x, and end up with: 245=100x. divide by 100, and get 2.45

6 0

3 years ago

Two fire rangers in watch towers that are 10 miles apart spotted a fire at the same time. The first ranger indicated that the po

bearhunter [10]

5 miles from the second tower

3 0

3 years ago

Read 2 more answers