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solniwko [45]
3 years ago
6

What is the scale factor of this dilation? A 2/3 B 1 1/2 C 3 D 5

Mathematics
1 answer:
Jlenok [28]3 years ago
3 0

Answer:

B. 1 1/2

Step-by-step explanation:

The post-image is clearly larger than the pre-image. The ratio of the post to the pre is 9 : 6 and 10 : 15, which are equal to 3 : 2, and equal to 1 1/2.

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Jenna drove 90 miles in 1 1/2 hours. How long will it take her to drive 300 miles?
oksano4ka [1.4K]
I think I would set a proportion for this. 1 1/2 hours is 90 minutes. So 90 minutes and 90 miles.

90 300
—- = ——.
90 X

As you can see, miles on top and minutes on the bottom. Now, cross multiply. 90x = 300(90)
90x=27,000
Divide by 90 on both sides to get x alone.
90x/90= x 27,000/90=300

300 minutes would be 5 hours!
8 0
4 years ago
Given the function f(x)=-3/5x+4 find f(x) =3
dimulka [17.4K]

Answer:

5/3

Step-by-step explanation:

Plug the 3 into the equation.

3 = (-3/5)x+4

Solve.

-1 = (-3/5)x

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x = 5/3

7 0
3 years ago
What's the domain and range for (×+4)-1
Sonja [21]
\bf a^{-{ n}} \implies \cfrac{1}{a^{ n}}\qquad \qquad

\cfrac{1}{a^{ n}}\implies a^{-{ n}}\\
---------------\\
thus\\
(x+4)^{-1}\implies \cfrac{1}{x+4}
\\\\

\bf if\qquad \cfrac{1}{0} \implies undefined

so.. what value of "x" makes x+4 to 0?

the domain will be, all real numbers, except that value

about the range, "y" will take, whateve "x" can provide.. in this case... I think is all real numbers, except 0, because, if you give a few big values to "x", the fraction will simply have a bigger and bigger denominator, making the fraction smaller and smaller, ever approaching 0, but never getting there
7 0
3 years ago
How can you use distributive property when factoring?
Crazy boy [7]
We can think of factoring as the opposite of the distributive property. If we take ax+bx, we just factor to get x(a+b) - it's the same thing. If you think of it like that, it provides great insight and a thoughtful memory strategy. Hope this helps!
5 0
3 years ago
The graph to the right is called a circle graph or pie chart. The
irga5000 [103]

An average worker's time is 14%. Is it true?

7 0
3 years ago
Read 2 more answers
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