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sergejj [24]
2 years ago
14

Help please with this math question

Mathematics
2 answers:
Vanyuwa [196]2 years ago
8 0
To solve this question, simply use the formula to find the volume of the cylinder,

V = Pi r^2 • h

V = 3.14 • 4^2 • 4.

Then compare the value for volume to the closest number on the number line. Is it in between 2 numbers, exactly one number on the number line or very close to one number as in the number line.






amm18122 years ago
4 0
Answer:
The last point

Explanation:
Volume of cylinder can be calculated using the following rule:
volume of cylinder = pi * r^2 * h
where:
pi is a constant given as 3.14
r is the radius = 4 units
h is the height = 4 units
Substitute with the givens in the above equation to get the volume as follows:
volume of cylinder = 3.14 * (4)^2 * (4) 
volume of cylinder = 3.14 * 16 * 4 = 217.6
Comparing the calculated value to the points on the number line, we will find that the closest point is the last one (since it is the point somewhere between the 200 and the 250. The second point from the right is at 200 so we will take the last one)

Hope this helps :)
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Yes that is correct..
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3 years ago
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What is the area of the figure?<br> 118 in<br> 48 in<br> 128 in<br> 108 in
Talja [164]

Answer:

108 In

Step-by-step explanation:

5 0
2 years ago
Which of the following is an even function g(x) = (x – 1)2 + 1g(x) = 2x2 + 1g(x) = 4x + 2g(x) = 2x
GuDViN [60]
An even function can be reflected about the y axis and map onto itself
example: y=x^2

an odd function can be reflected about the origin and map onto itself
example: y=x^3


a simple test is the following

if f(x) is even then f(-x)=f(x)
if f(x) is odd then f(-x)=-f(x)


so

even function
subsitute -x for each and see if we get the same function
remember to fully expand these

g(x)=(x-1)^2+1=x^2-2x+1+1=x^2-2x+2 is the original one

g(x)=(x-1)^2+1
g(-x)=(-x-1)^2+1
g(-x)=(1)(x+1)^2+1
g(-x)=x^2+2x+1+1
g(-x)=x^2+2x+2
not same because the original has -2x
not even


g(x)=2x^2+1
g(-x)=2(-x)^2+1
g(-x)=2x^2+1
same, it's even

g(x)=4x+2
g(-x)=4(-x)+2
g(-x)=-4x+2
not the same, not even

g(x)=2x
g(-x)=2(-x)
g(-x)=-2x
not same, not even



g(x)=2x²+1 is the even function
8 0
3 years ago
Read 2 more answers
Please help! I will give 50 points and brainliest.
QveST [7]

Answer:

Step-by-step explanation:

f * g = (x^2 + 3x - 4) (x+4)

open bracket

x((x^2 + 3x - 4) + 4 (x^2 + 3x - 4)

x³ +3x²-4x+x²+12x-16

x³+3x²+x²-4x+12x-16

x³+4x²+8x-16 (domain is all real numbers.

f/g = (x^2 + 3x - 4)/(x+4)

factorising (x^2 + 3x - 4)

x²+4x-x_4

x(x+4) -1 (x+4)

(x+4)(x-1)

f/g = (x^2 + 3x - 4)/(x+4) =(x+4)(x-1)/(x+4) = (x-1)

Before factorisation, this was a rational function so the domain is all real numbers excluding any value that would make the denominator equal zero.

Hence I got x - 1, and x cannot equal -4

 So the domain is just all real numbers without -4

8 0
2 years ago
When she graduates college, linda will owe $43,000
Ad libitum [116K]

Answer:

Good For Her

Step-by-step explanation:

She is now in debt of 43,000 and she will now be poor

3 0
3 years ago
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