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Alexxx [7]
3 years ago
13

Write an equation in standard form of The line that passss through (7,-3) and has a y intercept of 2

Mathematics
1 answer:
Marizza181 [45]3 years ago
6 0

Answer:

4

Step-by-step explanation:

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If f(x) = log2 (x + 1), what is f-1(2)? (2 points)
Soloha48 [4]

as you already know, to get the inverse of any expression, we start off by doing a quick switcheroo on the variables, and then solve for "y".

\bf \textit{Logarithm Cancellation Rules} \\\\ log_a a^x = x\qquad \qquad \stackrel{\textit{we'll use this one}}{a^{log_a x}=x} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \stackrel{f(x)}{y}=\log_2(x+1)\implies \stackrel{\textit{quick switcheroo}}{\underline{x}=\log_2(\underline{y}+1)}\implies 2^x=2^{\log_2({y}+1)} \\\\\\ 2^x=y+1\implies 2^x-1=\stackrel{f^{-1}(x)}{y} \\\\[-0.35em] ~\dotfill\\\\ 2^2-1=f^{-1}(2)\implies 3=f^{-1}(2)

3 0
3 years ago
Read 2 more answers
i need help answering this but also how to do it like step by step. i don’t understand this. (9 + 7x) - 7x
anyanavicka [17]

Answer: 9

Step-by-step explanation: so first you remove the ( ) because they’re useless in this then once you remove then Since two opposites add up to zero, remove them from the expression then you only get left with 9.

7 0
3 years ago
The problem is in the picture​
Aleonysh [2.5K]

Answer:

27%

Step-by-step explanation:

In the row Students ages 14-17 and column skip breakfast, there are 24 students.
In row total and column total, there 90 students.

24/90 are students age 14-17 who skip breakfast

24/90 = 12/45 = 0.26666667

Percent = decimal x 100

Percent = 0.26666667 x 100 = 26.666667

26.666667 is rounded to 27%

Hope this helps :)

Have a nice day!

5 0
3 years ago
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in Cranston taxis charge $4 plus $0.90 per mile for an airport pickup how far from the airport can Ralph travel for $17.50​
Mrac [35]

Answer:

14.4444 miles

Step-by-step explanation:

y=4+0.9x

plug in 17.5 for y

then solve

8 0
3 years ago
Brainlest!!!
son4ous [18]

Answer:

1st graph: x ≤ -5

2nd graph: x > -5

3rd graph: x ≥ -5

4th graph: x > 5

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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