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Luden [163]
3 years ago
13

Please help urgent!!!!

Mathematics
1 answer:
postnew [5]3 years ago
6 0

Answer:

B

Step-by-step explanation:

let y = f(x) and rearrange making x the subject

y = (2x - 4)² ( take the square root of both sides )

\sqrt{y} = 2x - 4 ( add 4 to both sides )

\sqrt{y} + 4 = 2x ( divide terms on both sides by 2 )

\frac{1}{2}\sqrt{y} + 2 = x

x = \frac{1}{2}\sqrt{y} + 2

Change y back into terms of x

f^{-1}(x) = \frac{1}{2}\sqrt{x} + 2, x ≥ 0

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In the circle, AB= 42, BC = 18 and CD= 4
solniwko [45]
Did you get the answer?
8 0
3 years ago
The box plot shows the number of years during which 24 colleges have participated in a local college fair
Bond [772]
The boxplot provides the following information:
Minimum = 0
First quartile = 2
Median = 4
Third quartile = 7
Maximum = 9

The sum is 2+4+7+9 = 22
The unaccounted for participants is 24 - 22 = 2 (outliers).
Those who participated for 2 years or less is 2.

Answer: A. 2 kids
6 0
3 years ago
Wha is the nth term of 2 5 8 11 14
djyliett [7]
If you look at the sequence, you would observe:

5 - 2 = 3, 8 - 5 = 3, 11 - 8 = 3.

There is a common difference of 3, so the sequence is an Arithmetic Progression.

nth term of an AP =   a + (n - 1)d

where a = 1st term = 2, d = common difference = 3

nth term of an AP =   a + (n - 1)d

nth term of an AP =   2 + (n - 1)*3 = 2 + 3*n  - 3*1 = 2 + 3n - 3

=  2 - 3 + 3n

= -1 + 3n

= 3n - 1

The nth term =  3n - 1,  where n = 1, 2, 3, 4, 5,....

I hope this explains it.
5 0
4 years ago
Help please. It'd mean a whole lot.
svp [43]

So, the total area of the rectangle is just:

(2x+11)(2x+6)=4x^2+12x+22x+66=4x^2+32x+66

The area of the white rectangle is just 66 meters, so the area of the steel frame is 4x^2+32x, and we want it to be 28 meters so: 4x^2+32x-28=0 \impliesx= \frac{-32+\sqrt{1472}}{8} \approx .80 cm

We don't have to consider the other root because it's obviously a negative.

3 0
4 years ago
Find the area of this circle. Use 3.14 for pi. A circle has diameter 96 yards.
Stells [14]

Answer:

Step-by-step explanation:

The area of a circle is pi((r)^2)

And diameter = 2r

so 96 = 2r and the radius is 48 yards

Now plug in into A = pi(r)^2

=pi(48)^2 = 7234.56 yards^2.

3 0
4 years ago
Read 2 more answers
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