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3 years ago

Help me with this, please!!!!!

Mathematics

1 answer:

mojhsa [17]3 years ago

5 0

Answer:

B / 452.4 cubic inches

Step-by-step explanation:

The equation to find the volume of a cylinder is V = πr²h, where r is the radius and h is the height. The height of the cylinder in this image is 16 inches and the radius of the cylinder is 3 so if you plug those numbers into the equation, it would look like V = π3²16 and if you simplify it, it turns into V = 452.38, which when round to the nearest tenth, is 452.4 cubic inches.

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From 5x² - 6x + 8, subtract 3x² - 2x - 4

shutvik [7]

Answer:

Step-by-step explanation:

2x squared-4x+4

5 0

3 years ago

Read 2 more answers

(a) Complete the table of values for y = 6 - 4x. Please help ❤️

shutvik [7]

Answer:

$\boxed{\begin{tabular}{|c|c|c|c|c|c|}\cline{1-6} \bf x & -1 & 0&1&2&3\\\cline{1-6} \bf y & 10& 6& 2&(-2)&-6 \\\cline{1-6}\end{tabular}}$

Step-by-step explanation:

Given equation to us is :-

$\implies y = 6 - 4x$

So , here we can put different values of x in order to get different values of y .

Initial table given to us is ,

$\begin{tabular}{|c|c|c|c|c|c|}\cline{1-6} \bf x & -1 & 0&1&2&3\\\cline{1-6} \bf y & & & 2&&-6 \\\cline{1-6}\end{tabular}$

Put x = (-1) :-

$\implies y = 6 - 4x \\\\\implies y = 6 -4(-1) \\\\\implies y = 6 + 4 \\\\\red{\bf\implies y = 10}$

Put x = 0 :-

$\implies y = 6 - 4x \\\\\implies y = 6-4(0) \\\\\implies y = 6 - 0 \\\\\pink{\bf\implies y = 6 }$

Put x = 2 :-

$\implies y = 6-4x \\\\\implies y = 6 - 4(2) \\\\\implies y = 6 - 8 \\\\\blue{\bf\implies y = (-2)}$

Hence the final table would be :- 

$\begin{tabular}{|c|c|c|c|c|c|}\cline{1-6} \bf x & -1 & 0&1&2&3\\\cline{1-6} \bf y & 10& 6& 2&(-2)&-6 \\\cline{1-6}\end{tabular}$

4 0

3 years ago

Can anybody help me on this

daser333 [38]

Answer:

(A) 120°

Step-by-step explanation:

m∠P=x

m∠S=2x

m∠Q=x

m∠R=2x

Sum of the angles in trapezoid is 360°.

x+x+2x+2x=360

6x=360

x=60°

m∠R=2x=2*60=120

3 0

3 years ago

during a 20%of sale,the sale price of an mp3 alarm clock was 35.96 what was the regular price of the radio

babymother [125]

If 20% was taken off, that means that 35.96 is 80% of the original price.
35.96 = $\frac{80}{100}$
Now, we just need to put it into fractions, cross multiply, and divide to find the original price.
$\frac{35.96}{1} = \frac{80}{100} \
$
35.96×100 = 3596
1×80 = 80
3596÷80 = 44.95
Now, to make sure, we multiply 44.95 by 20%,
44.95×0.20 = 8.99
Subtract that from 44.95
44.95-8.99 = 35.96
That is the sale price of the alarm clock.
This means that yes, the regular price of the mp3 alarm clock was
$44.95

6 0

3 years ago

A handyman is replacing tiles in the bathroom. He has enough to cover an area of 12 square feet. The section of the floor that h

siniylev [52]

No he does not because he can only cover 12 square feet from 15 square feet which he will still need 3 more. this is because if 3×5=15 square feet and 15-12=3 which thats the answer

5 0

4 years ago