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adoni [48]
3 years ago
13

HELP HELP HELP!!!

Mathematics
1 answer:
Alchen [17]3 years ago
8 0

Answer:

y = 2x - 25

Step-by-step explanation:

First find the gradient, we can see it goes through (30,35) and 35,45), and since gradient is found by 'change in y / change in x' we can do: (45-35) / (35-30) = 10/5 = 2

So we know we are looking for an equation with 2x in it.

We have two options: y = 2x - 25 and y = 2x - 75.

Plug in one of the points and see which of the equations works.

Replacing y with 35 and x with 30 in the first equation we have: 35 = 2(30) - 25 = 60 - 25 = 35, this is indeed true.

However if we did the same with the second equation: 35 = 2(30)-75 = 60 - 75 = -15, this is false since 35 does not equal -15, so it can't be the second equation.

In conclusion it must be y = 2x - 25

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trapecia [35]

9514 1404 393

Answer:

  b = √32

Step-by-step explanation:

The Pythagorean theorem tells you the relation between the side lengths is ...

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  b = √32

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<em>Additional comment</em>

This radical can be simplified by removing a square from under the radical.

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5 0
2 years ago
Suppose point P(4,-9) is transmitted according to rule (x,y)→(x+3,y-2),what are the coordinates of P
malfutka [58]

Answer:

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6 0
3 years ago
In the figure above, what is the area of triangle QRS?
Vlad [161]

Answer:

D) 20.

Step-by-step explanation:

First find the value of x using Pythagoras theorem:

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6 0
1 year ago
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Step-by-step explanation:

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3 0
3 years ago
Read 2 more answers
At a restaurant there is 7% sales tax. If the bill was $8.64, how much would he be owed in total?
Andreas93 [3]
Ok, so in order to get tax on something you multiply the amount by the amount of tax in decimal form and then add back the original amount. So for this, you'd start with 8.64*0.07, which equals 0.6048. This rounds to 0.60. 8.64+0.60=9.24

So, he would owe $9.24 total.
3 0
3 years ago
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