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QveST [7]
3 years ago
11

Help me pleaseeeee!!!!!!!!

Mathematics
1 answer:
Andrei [34K]3 years ago
5 0

Answer:

140

Step-by-step explanation:

Angles 1, 2 and 3 are in a straight line,

Straight line has 180 degrees,

∠1 = ∠3 = 20

∠1 + ∠2 + ∠3 = 180

20 + ∠2 + 20 = 180

∠2 + 40 = 180

∠2 = 180 - 40

∠2 = 140

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Triangle RST was dilated with the origin as the center of dilation to create triangle R'S'T'. The triangle was dilated using a s
mihalych1998 [28]

Triangle RST was dilated by a scale factor of 1/2

Given: triangle R'S'T', is an isosceles triangle, with each leg measuring 8 units. 

Pre-image: 

measure of pre-image * scale factor = measure of resulting image

measure of pre-image = measure of resulting image / scale factor

measure of pre-image = 8 / 1/2

measure of pre-image = 8 * 2/1 

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Step-by-step explanation:

6 0
4 years ago
What is the domain of the following parabola?
vitfil [10]
The domain for all parabola is always all real numbers.
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4 years ago
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Equations y1 = x2 − 5x + 8 and y2=10/x intersect at a point. What is the closest value of x when y1 = y2?
Alex17521 [72]

Answer:

C.  between 3.5 and 4

Step-by-step explanation:

We are given

y_1=x^2-5x+8

y_2=\frac{10}{x}

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so, firstly we will set them equal

x^2-5x+8=\frac{10}{x}

we can multiply both sides by x

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8 0
4 years ago
If ST = 12 and RT = 50 find RS. Use number line below
Inga [223]

Answer:

I believe RS is 38.

Step-by-step explanation:

RT is 50, which is the total length of the number line. ST is 12, which is one part of the line. To find RS. I believe you have to subtract 50-12 to get the length of the missing part. which is RS.

50-12 = 38

6 0
3 years ago
Don't need to show work
Oliga [24]
10/4 = x/20
4x = 200
x = 200/4
x = 50 <== LP = 50
3 0
4 years ago
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