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Darya [45]
3 years ago
15

When "f is inversely proportional to the square of d", if f=18Ib when d=3 in, find f when d=1.2 in

Mathematics
1 answer:
77julia77 [94]3 years ago
8 0

Answer:kjr v;tvkrtjw vk; ;jr vk; tk;jvo;tjrwv 5tkj k;wethd;kt v;3jk 5b3k;jwv;jtkjV T%kb vtir fvo

Step-by-step explanation:

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What is the effect on the graph of the parent function f(x) = x when f(x) is replaced with 4f(x)?
guajiro [1.7K]
Remark
The way this is written I would assume that it means 4*f(x) = x. That may not be entirely the correct assumption to be made. 

Step One
Replace f(x) by 4f(x)
4*f(x) = x  

Step two
Divide both steps by 4
f(x) = x/4 or (1/4)x
The slope is now 1/4

Discussion
A is incorrect.
The slope has been changed. 

B is incorrect
The slope has been changed to 1/4 and the y intercept is still 0

C looks to be the right answer.

D The y intercept is still zero. 

Comment
The question is a little hard to interpret. I've read it literally. That means that I have taken the question to mean that only f(x) was altered. If however, the right side was multiplied by 4 as well (as should be done), then the answer is A same slope same intercept. That's because the 4s on the left and right cancel, and the original equation results. I'm going to pick C but don't be surprised if it is A

C <<<<<answer

6 0
3 years ago
Read 2 more answers
Let X have the probability mass function P(X = −1) = 1 2 , P(X = 0) = 1 3 , P(X = 1) = 1 6 Calculate E(|X|) using the approaches
Studentka2010 [4]

Answer:

Step-by-step explanation:

From the given information:

Note that the possible values of Y are 0 and 1 because;

y = 0 if X = 0 and y = 1 if X = ±1

∴

P(Y =0) = P(X = 0) =\dfrac{1}{3}

P(Y = 1) = P(X = -1  \ or \ 1) \\ \\ = P(X = -1) + P(X = 1)

= \dfrac{1}{2}+ \dfrac{1}{6}

=\dfrac{3+1}{6}

= \dfrac{2}{3}

b)

E(|X|) = \sum |x| P(X=x) = ( 1 \times \dfrac{1}{2}) + ( 0\times \dfrac{1}{3}) + ( 1 \times \dfrac{1}{6})

= \dfrac{2}{3}

7 0
3 years ago
Find the Midpoint of the following Coordinates:
Sav [38]

Answer:

(2, 1)

Step-by-step explanation:

\frac{X1+X2}{2} , \frac{Y1 + Y2}{2}

3 0
4 years ago
DROP AN ANSWER PLSSSS!!!!!!!!!
Illusion [34]

Answer:

The answer is B

Step-by-step explanation:

5 0
3 years ago
If a dolls cup holds 2ml, how many cups would it take to fill a doll's 10ml bottle
disa [49]

Answer:

it would take 5 dolls cups

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