3 years ago

How do I solve 3x-y=15

1 answer:

4 0

Okay, 3x just means 3•x. so 3•x-y=15. you would have to have what x and y both mean to get the correct answer. but if they just need it simplified than your answer would be 3•x-y=15

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What is the intermediate step in the form (x+a)^2=b as a result of completing the following equation? Please help.

aksik [14]

Answer:

(x+8) ^2=64

Step-by-step explanation:

that will give you your two solutions: x= -16 and x=0. I hope this helps!!!

8 0

3 years ago

The points P and Q in the following figure define the line segment (PQ⎯⎯⎯⎯⎯) P Q . The steps involved in using a compass to cons

kenny6666 [7]

You haven't provided the steps.

mathisfun.com/geometry/construct-linebisect.html

Here is a useful link to the correct steps. The instructions may not be exactly the same but I think you can do it.

3 0

3 years ago

Which set of lengths are not the side lengths of a right triangle? (A-28, 45, 53) (B-13, 84, 85) (C-36, 77, 85) (D-16, 61, 65) [

nikklg [1K]

Side lengths 16, 61, and 65 are not part of a right triangle.

A right triangle's sides should follow this formula, C being the largest number:

$a^{2} + b ^{2} = c^{2}$

$16^{2} = 256$

$61^{2} = 3721$

$65^{2} = 4225$

256 + 3721 = 3977

$3977 \neq 4225$

6 0

3 years ago

Olivia walks up to a tank of water that can hold up to 50 gallons. When it is active, a drain empties water form the tank at a c

agasfer [191]

Answer:

Step-by-step explanation:

I got the answer C because if the estimated value of the tank is 50 and it gets drained it will only have 18 gallon in it

8 0

3 years ago

Read 2 more answers

Solve the equation: 5x + 7= 7x +23

olga nikolaevna [1]

Answer:

x = -8

Step-by-step explanation:

1) 5x + 7= 7x +23

Move the terms

2) 5x + 7 -7x = 23

Collect like terms

3) 5x -7x = 23 - 7

Calculate

4) -2x = 16

Divide both sides by <em>-2</em>

5) x = -8

4 0

3 years ago