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Blizzard [7]
3 years ago
14

* 20% of x is 130. What is x?

Mathematics
1 answer:
densk [106]3 years ago
4 0

Answer:

x = 650

Step-by-step explanation:

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The function f(x)=(x-1)^4 is not one to one. However, if we restrict the domain to x greater than or equal to 0, we can find it'
nikklg [1K]

Answer:

Option A

Step-by-step explanation:

Domain should be greater than/equal to 1 for the function to be one-one.

f has vertex at (1,0)

f inverse has (0,1)

f(x) = 4

(x - 1)⁴ = 4

x = 2.414

On f: (2.414, 4)

On f inverse: (4, 2.414)

6 0
3 years ago
Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line. y = x, y =
Tema [17]

Answer:

Volume = π [ 2/3 - 12/2].

Step-by-step explanation:

So, in this question we are asked to find or Calculate for or determine the value of volume v of the solid obtained by rotating the region bonded by the given curves about the specified lines = ? (Unknown). In addition, we are given that y = x, y = x , so, about x = 3.

Volume = π ∫ [ (3 - y)^2 - (3 - y)^2 ] dy.

(Taking 0 and 1 as the lower and upper limit).

Volume = π ∫ 9 - 6y + y^2 - 9 - 6y + y^2 dy.

(Taking 0 and 1 as the lower and upper limit).

Volume = π ∫ 2y^2 - 12y dy.

(Taking 0 and 1 as the lower and upper limit).

(Solving the quadratic equation above, we have; Roots: -6, 0

Root Pair: -3 ± 3

Factored: f(x) = 2(x + 6)x)

Also,

Volume = π [ 2y^3 / 3 - 12y2/2]

Volume = π [ 2/3 - 12/2] cubic units.

3 0
3 years ago
Please tell the LCM of the following -​
Arada [10]

Answer:

Below.

Step-by-step explanation:

I won't do all of these for you but I'll show you the general method.

First write each number  as prime factors.

For example number 7:

LCM of 24 and 34.

24 = 2 * 2 * 2 * 3

34 = 2 * 17

The LCM  is the multiple of all these factors EXCEPT if there is a duplicate number you only use it once.

There is one duplicate here - the 2 ( in bold) so we only use  this once.

So the LCM = 2 * 2 * 2 * 3 * 17 = 408.

Number 1:

13, 25

13 = 13

25 = 5 * 5

There are no duplicates  so the LCM = 13 * 5 * 5 = 325.

Number  18:

15, 84

15 = 3 * 5

84 = 2 * 2 * 3 * 7

Number 3 is common to both sets so it is only used once:

LCM = 2 * 2 * 3 * 5 * 7 = 420.

Number 40:

18, 48

18 = 2 * 3 * 3

48 = 2 * 2 * 2 * 2 * 3

There are 2 sets of duplicates here, 2 and 3 .

LCM =  2 * 2 * 2* 2 * 3 * 3 = 144.

4 0
3 years ago
Read 2 more answers
E=mc squared m=3 c=6
dsp73

Answer:

E = 108

Step-by-step explanation:

E = 3 * 6^{2}

= 108

4 0
3 years ago
Read 2 more answers
The dimensions of a rectangular prism are shown below:
Evgen [1.6K]

ok so first we find the volume of the prism which is just LWH which means u multiply them all so you would get 1 1/2 x 1 x 2 1/2 which equals 3.75.

Then we find out the small cube which is 1 1/2 x 1 1/2 which equals 2.25

Then you divide 3.75 by 2.25

So 1.67 small cubes can fit in the rectangular prism

so for part B just multiply the small cube volume by 1.67 and you will get approximently 3.75

3 0
3 years ago
Read 2 more answers
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