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Sonbull [250]
3 years ago
14

Triangle POR with vertices P(3, -6), (6,-9), and R(-15, 3) is dilated by a scale factor of 3 to obtain triangle P'Q'R'. Which st

atement best describes triangle P'Q'R? (5 points)
It is similar to triangle PQR and has coordinates P'(1, -2), Q'(2, -3), and R'(-5,1).
It is congruent to triangle PQR and has coordinates P'(1, -2), Q'(2, -3), and R'(-5, 1).
It is similar to triangle PQR and has coordinates P'(9, -18), Q'(18, -27), and R'(-45,9).
It is congruent to triangle PQR and has coordinates P (9.-18), Q'(18, -27), and R'(-45,9).
Mathematics
2 answers:
Phantasy [73]3 years ago
5 0

Answer:

im not sure

Step-by-step explanation:

Scilla [17]3 years ago
5 0

Answer:

It is congruent to triangle PQR and has coordinates P'(1, -2), Q'(2, -3), and R'(-5, 1).

Step-by-step explanation:

It can't be congruent because the triangles angles and size would have to be the same. Hope this helps.

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f(x) is a quadratic function with x-intercepts at (−1, 0) and (−3, 0). If the range of f(x) is [−4, [infinity]) and g(x) = 2x^2
iren2701 [21]

Answer with Step-by-step explanation:

We are given that function f(x) which is quadratic function.

x -intercept of function f(x) at (-1,0) and (-3,0)

x-Intercept of f means zeroes of f

x=-1 and x=-3

Range of f =[-4,\infty)

g(x)=2x^2+8x+6=2(x^2+4x+3)

g(x)=0

2(x^2+4x+3)=0

x^2+4x+3=0

x^2+3x+x+3=0

x(x+3)+1(x+3)=0

(x+1)(x+3)=0

x+1=0\implies x=-1

x+3=0\implies x=-3

Therefore, x-intercept of g(x) at (-1,0) and (-3,0).

Substitute x=-2

g(-2)=2(-2)^2+8(-2)+6=8-16+6=-2

g(x)=2(x^2+4x)+6

g(x)=2(x^2+2\times x\times 2+4-4)+6=2(x^2+2\times x\times 2+4)-8+6

g(x)=2(x+2)^2-2

By comparing with the equation of parabola

y=a(x-h)^2+k

Where vertex=(h,k)

We get vertex of g(x)=(-2,-2)

Range of g(x)=[-2,\infty)

Zeroes of f and g are same .

But range of f and g are different.

Range of f contains -3 and -4 but range of g does not contain -3 and -4.

f and g are both quadratic functions.

3 0
3 years ago
A local television station runs 2.5 minutes of commercials during every 30 minutes of programming. At this rate, how many minute
umka21 [38]

Answer:

12.5 minutes of commercials

Step-by-step explanation:

9:30 - 7:00 = 2 and a half hours on air = 150 minutes.

150 / 30 = 5

5 x 2.5 = 12.5

8 0
3 years ago
Read 2 more answers
khanya builders are paid R480 for 8 hours of work,whiles rex builders are paid R660 for 12 hours of work.which company is paid t
kiruha [24]

Answer:

khanya pays higher

Step-by-step explanation:

You have to find the $/hr ratios:

khanya's is 480/8->$60/hr

rex's is 660/12->%55/hr

Khanya pays the higher rate

5 0
3 years ago
Can you please help me with this question
Luda [366]
So we are simply adding them

we will set the denominator equal by multiplying both the numerator and denominator
then just adding the numerator while keeping the denominator. look at my work. so your answer is 5/8

4 0
4 years ago
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Evaluate S(3)=10+20log4(3+1)
dimulka [17.4K]
Asssuming you mean

evaluate 10+20log_4(3+1)

remember log_a(a)=1
so
10+20log_4(3+1)=
10+20log_4(4)=
10+20(1)=
10+20=
30
4 0
3 years ago
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