Please help (Multiple choice)

Mathematics

1 answer:

Nuetrik [128]3 years ago

4 0

Answer:

y = -3x - 5 (The second option)

Step-by-step explanation:

I used a GREAT website called desmos.com that helps you plug in equations and graphs them. On the far left, you can see the point (-3,4) and the equation typed in. Really suggest using it. I use it all the time.

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A car is traveling at a rate of 81 kilometers per hour. What is the cars rate in kilometers per minutes?

Orlov [11]

175 I believe is the answer

6 0

4 years ago

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The measure of anglerst can be represented by the expression (6x 12)°. three lines extend from point s. the space between lines

miv72 [106K]

Answer:

∠RST = 120°

Step-by-step explanation:

We assume the positions of the lines and angles will match the attached figure. The angle addition theorem gives a relation that can be solved for x, then for the value of angle RST.

∠RSU +∠UST = ∠RST

78° + (3x -12)° = (6x +12)° . . . . . substitute given values into the above

54 = 3x . . . . . . . . . . . . . . . . divide by °, subtract 3x+12

108 = 6x . . . . . . . . . . . multiply by 2

120° = (6x +12)° = ∠RST . . . . add 12, show units

The measure of angle RST is 120 degrees.

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<em>Additional comment</em>

Note that we don't actually need to know the value of x (18) in this problem. We only need to know the value of 6x.