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Mashutka [201]
3 years ago
6

What is the inverse of f(x)=2-2x

Mathematics
1 answer:
juin [17]3 years ago
6 0
In the usual sense, it has no inverse function. Since it is not an injection (f(0)=f(2)=0), an inverse function would have to map 0 both to 0 and 2, and that’s impossible.

However, if you restrict the domain to [1,+oo> (to make it injective), and the codomain to [-1,+oo> (to make it surjective), then it has an inverse function, given by g(y)=1+sqrt(y+1).
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Which number is larger -3.4 or -3 1/2 (BTW this is a fraction)? How will graphing these numbers on a number line help you determ
valkas [14]

Answer:

-3.4

Step-by-step explanation:

negative numbers are reverse counting on the line graph.

-3 1/2 is -3.5

-3.4 VS. -3.5

since it is reverse, -3.4 is greater

3 0
4 years ago
Which option below best describes the difference between an experiment and an observational study?
noname [10]

An observation study is where nothing changes and you record what is seen. An experimental study you have a control group and a testable group.

The answer would be: .C. The groups in an experiment are chosen at random, but not in an observational study.

5 0
3 years ago
(no links or files) Solve this equation using the quadratic formula. This question should be solved both ways. (1) Quadratic For
meriva
Quadratic formula is x = -b+ or- sq rt b^2-4ac / 2a
a=2 b=5 c=-3
-5 +or- sqrt 5^2-4(2)(-3) / 2(2)
-5 +or- sqrt 49/ 4
-5 + 7 /4 = 2/4 = 1/2
-5 - 7 /4 = -12/4 = -3

Factoring a*c is 2*-3 =-6
Factors of -6 that add to 5 are 6 and -1
Split 5x into +6x-1x
2x^2+6x-1x-3 and group
2x(x+3)-1(x+3)
(x+3)(2x-1)=0
x+3=0 gives x=-3
2x-1=0 gives x=1/2
4 0
3 years ago
Y = −4x + 3 <br> Graphing equations in slope-intercept form
jok3333 [9.3K]
Y=-4x+3 is already in slope intercept form. Graphed it looks like this

4 0
3 years ago
To make dough, Reba needs 2 1/2 cups of flour. How much flour does she need to make 5 batches of dough?
aleksandr82 [10.1K]

Answer:

12 1/2 cups of flour

Step-by-step explanation:

2 1/2 cups for each batch

5 batches

2 1 /2 x 5 =

12 1 /2

5 0
3 years ago
Read 2 more answers
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