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slamgirl [31]
3 years ago
14

Help me its due today

Mathematics
2 answers:
Ilya [14]3 years ago
8 0

Answer:

$14.85

Step-by-step explanation:

svlad2 [7]3 years ago
5 0

Answer:

14.85

Step-by-step explanation:

15% of $99

15% = 0.15

"Of" is another way of saying multiply

So...

0.15 x 99

14.85

Victoria will pay $14.85 as a 15% tip of 99 dollars.

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A gas station operates two pumps, each of which can pump up to 10,000 gallons of gas in a month. the total of gas pumped at the
erma4kov [3.2K]
Given that a<span> gas station operates two pumps, each of which can pump up to 10,000 gallons of gas in a month and that the total of gas pumped at the station in a month is a random variable y (measured in 10,000 gallons) with a probability density function (p.d.f.) given by

f(y)=\begin{cases}&#10;      cy, & \text{if} \ \ 0\ \textless \ y\ \textless \ 1 \\&#10;      (2-y), & \text{if} \ \ 1\leq y\ \textless \ 2 \\&#10;      0, & \text{elsewhere}&#10;    \end{cases}

Part A:

The value of c that makes f(y) a pdf is obtained as follows:

F(\infty)= \int\limits^{\infty}_{-\infty} {f(y)} \, dy=1  \\  \\ \Rightarrow \int\limits^1_0 {cy} \, dy +\int\limits^2_1 {(2-y)} \, dy=1 \\  \\ \Rightarrow \left. \frac{cy^2}{2} \right]^1_0+\left[2y- \frac{y^2}{2} \right]^2_1=1 \\  \\ \Rightarrow  \frac{c}{2} +4-2-2+ \frac{1}{2} =1 \\  \\ \Rightarrow \frac{c}{2} = \frac{1}{2}  \\  \\ \Rightarrow \bold{c=1}



Part B:

We compute E(y) as follows:

E(y)=\int\limits^{\infty}_{-\infty} {yf(y)} \, dy \\  \\ =\int\limits^1_0 {y^2} \, dy +\int\limits^2_1 {(2y-y^2)} \, dy \\  \\ =\left. \frac{y^3}{3} \right]^1_0+\left[y^2- \frac{y^3}{3} \right]^2_1 \\  \\ = \frac{1}{3} +4- \frac{8}{3} -1+ \frac{1}{3}  \\  \\ =1

Therefore, E(y) = 1.
</span>
5 0
3 years ago
Need help with this problem pls
Dominik [7]
Volume is measured in cubic units.
 So the ratio would become 6^3: 5^3 = 216:125

The answer would be A.


3 0
3 years ago
If you mow 24 lawns and earn 10.50 for each lawn,your total earing are?
Sladkaya [172]
If one lawn is 10.50, then to find 24 lawns you times it by the earnings of one lawn (i.e. 10.50)
The sum would be: 10.50 x 24
The answer to that would be 252.00.
(Remember to add in the currency sign in front of the answer (eg. £ $ etc)
7 0
3 years ago
Read 2 more answers
Hey, mind helping me out?
maxonik [38]

Answer:

h \leq  16

Step-by-step explanation:

h + 4 ≤ 20

Subtract 4 from both sides.

h ≤ 20 − 4

Subtract 4 from 20 to get 16.

h \leq  16

Hope it helps and have a great day! =D

~sunshine~

8 0
2 years ago
Read 2 more answers
a spinner is divided into nine equal sections numbered 1 through 9. predict how many times out of 270 spins the spinner is most
evablogger [386]
I'd say around 150 times
5 0
3 years ago
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