PLEASE HELP!!

Mathematics

1 answer:

Leokris [45]3 years ago

4 0

Answer:

0.9

Step-by-step explanation:

9÷10 =0.9 isisjsjsjsjjzjzjz

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suppose you have ab on a coordinate plane located at a(-3,-4) and b(5,-4). under a dilation centered at (9,0), ab becomes a'b' w

Galina-37 [17]

The distace between the center of dilation and point a is diven by:

$d=\sqrt{(9-(-3))^2+(0-(-4))^2} \\ \\ =\sqrt{(9+3)^2+(0+4)^2}=\sqrt{12^2+4^2} \\ \\ =\sqrt{144+16}=\sqrt{160}=\sqrt{16\times10}=4\sqrt{10}$

The distance between the center of dilation and point a' is given by:

$d=\sqrt{(9-6)^2+(0-(-1))^2} \\ \\ =\sqrt{3^2+(0+1)^2}=\sqrt{3^2+1^2} \\ \\ =\sqrt{9+1}=\sqrt{10}$

It can be seen that the distance from the center of dilation to the image is 1/4 times the distance from the centre of dilation to the preimage.

Therefore, the scale factor is 1/4.

7 0

4 years ago

Consider a finite population with five elements labeled A, B, C, D, and E. Ten possible simple random samples of size 2 can be s

LenKa [72]

Answer: 4/25

Step-by-step explanation:

8 0

3 years ago

I need help plz, only if you now the answer

solniwko [45]

Answer:

{-2, 1, 2}

Step-by-step explanation:

F(x) = x³ - x² - 4x + 4 is factorable as follows:

F(x) = x²(x - 1) - 4(x - 1). (x - 1) is a common factor. Factor it out:

F(x) = (x - 1)(x² - 4)

x² - 4 can be factored further:

F(x) = (x - 1)(x - 2)(x + 2)

The possible roots of F(x) are {-2, 1, 2}.

6 0

3 years ago

Joseph and Isabelle left Omyra’s house at the same time. Joseph jogged north at 8 kilometers per hour, while Isabelle rode her b

Artist 52 [7]

For this case the distance will be given by:
d ^ 2 = (12 * 1.5) ^ 2 + (8 * 1.5) ^ 2
Rewriting we have:
d ^ 2 = (18) ^ 2 + (12) ^ 2
d ^ 2 = 324 + 144
d ^ 2 = 468
d = root (468)
d = 21.63 Km
Answer:
1) She did not find the full distance each traveled in 1.5 hours.
2) She should have used 12 km for Joseph's distance and 18 km for Isabelle's distance.

8 0

4 years ago

Read 2 more answers

Please help me I need help

yarga [219]

Answer:

23.16 your welcome

Step-by-step explanation:

3 0

2 years ago