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madam [21]
3 years ago
15

Trevor saves 2/3 of the money trevor starts saving 1/4 as much as he is saving now. Will he be saving less or more or the sane a

mount
Mathematics
1 answer:
DiKsa [7]3 years ago
7 0
Less then 2/3...........
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Confirm that f and g are inverses by showing that f(g(x)) = x and g(f(x)) = x. f(x) = (x-8)/(x+7) g(x) = (-7x-8)/(x-1) I'm runni
Sphinxa [80]
f(x)=\frac{x-8}{x+7} \\
g(x)=\frac{-7x-8}{x-1} \\ \\
f(g(x))=\frac{\frac{-7x-8}{x-1}-8}{\frac{-7x-8}{x-1}+7}=\frac{\frac{-7x-8}{x-1}-\frac{8(x-1)}{x-1}}{\frac{-7x-8}{x-1}+\frac{7(x-1)}{x-1}}=\frac{\frac{-7x-8}{x-1}-\frac{8x-8}{x-1}}{\frac{-7x-8}{x-1}+\frac{7x-7}{x-1}}=\frac{\frac{-7x-8-8x+8}{x-1}}{\frac{-7x-8+7x-7}{x-1}}= \\ =\frac{\frac{-13x}{x-1}}{\frac{-13}{x-1}}=\frac{-13x}{(x-1)} \times \frac{(x-1)}{-13}=x \\ \Downarrow \\ f(g(x))=x \\
\checkmark

g(f(x))=\frac{-7(\frac{x-8}{x+7})-8}{\frac{x-8}{x+7}-1}=\frac{\frac{-7(x-8)}{x+7}-\frac{8(x+7)}{x+7}}{\frac{x-8}{x+7}-\frac{1(x+7)}{x+7}}=\frac{\frac{-7x+56}{x+7}-\frac{8x+56}{x+7}}{\frac{x-8}{x+7}-\frac{x+7}{x+7}}= \\
=\frac{\frac{-7x+56-8x-56}{x+7}}{\frac{x-8-x-7}{x+7}}=\frac{\frac{-15x}{x+7}}{\frac{-15}{x+7}}=\frac{-15x}{(x+7)} \times \frac{(x+7)}{-15}=x \\ \Downarrow \\ g(f(x))=x \\ \checkmark
7 0
3 years ago
List following fractions in ascending order<br> 5/6 15/36 3/18 5/9 31/36
xeze [42]

Answer

3/18, 15/36, 5/9, 5/6, 31/36

This is least to greatest.

Step-by-step explanation: find a common dinominator which is 36

5/6 converted into 30/36

Keep 15/36 the same

3/18 converted into 6/36

Keep 31/36

5/9 converted into 20/36

5 0
2 years ago
What is the focus of the parabola? y=14x2−x−1 <br> Enter your answer in the space.. <br> ( ?,? )
dmitriy555 [2]
This is a vertical parabola which opens upwards
we have the general formula
(x - h)^2 = 4p(y - k)   where p is the  y coordinate of the focus

y/14 = x^2 - x /14 - 1/14

add 1/14 to both sides

y/14 + 1 /14 = x^2 - x /14

now complete the square  

y/14 + 1/14 = x^2 - x/14  + 1/28^2

y/14 + 1/14 = (x - 1/28)^2

(x - 1/28)^2 = 1/14( y + 1)


comparing this with the general form:-
4p = 1/14
p =  1/56

so the focus is at (h,p) = (1/28, 1/56)

5 0
3 years ago
Read 2 more answers
PLEASE HELP AND FAST
aksik [14]

Answer:

I think it's A because.

Step-by-step explanation:

A trendline is a line drawn over pivot highs or under pivot lows to show the prevailing direction of price. Trendlines are a visual representation of support and resistance in any time frame. They show direction and speed of price, and also describe patterns during periods of price contraction.

7 0
2 years ago
Hmm you seem pretty smart helpmetnx how about now?
ololo11 [35]
Hmmm... 
If he presses the button 5 times then the length will be 3.2

His boss said that if he presses five times then it will be smaller than the desired length therefore he shouldn't press five times... that is the correct answer

The answer is D.)
Javier's boss and he should not press the button five times


Hope this helps :P
6 0
3 years ago
Read 2 more answers
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