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stiv31 [10]
3 years ago
14

Solve each using substitution Y=3x-5 2x+3y=29 3x+y=30 Y=5x+6

Mathematics
1 answer:
Butoxors [25]3 years ago
4 0
Question 1: X=4
Question 2: X=4
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Answer BOTH! I’ll mark BRAINLIEST!
jonny [76]

Answer:

Step-by-step explanation:

EC=12

AC=24

3 0
3 years ago
Does the equation y = x(x - 3) represent a linear function
Flauer [41]

Answer:

No

Step-by-step explanation:

No. You can see why if you remove the brackets.

y=x^2 - 3x.

A linear function must have x and y with powers of 1. Also it can't something like x^2 - y^2 = 5

x^2 - y^2 = 0 is the only exception I can think of, but that really is a system of equations. If you graph it. you get two equations which cross at 0 and nowhere else.

7 0
3 years ago
Which expression is equivalent to 3(8+7)? PLEASE HELP MEEE
yarga [219]

Answer:

well I guess 8(3+7) or 7(8+3)

5 0
2 years ago
Solve for x:<br>(x-1)^3/2 = 27
Alex_Xolod [135]
(x-1)^3 / 2 = 27

For equations like this, we want to isolate x in order to get the value of it.

First, let's multiply both sides by 2 to eliminate the fraction.

(x-1)^3 = 27(2)

Now, let's take the cube root of both sides

(x-1) = ∛(27 * 2)

Now, simplify the root

x - 1 = 3∛2

Add both sides by 1

x = 1 + 3∛2

That's your answer.

Have an awesome day! :)
8 0
3 years ago
Read 2 more answers
Solve (2 - x)^2 &lt; 4/25
Semenov [28]

Answer:

8/5 < x< 12/5

Step-by-step explanation:

(2 - x)^2 < 4/25

Take the square root of each side

sqrt((2 - x)^2)  <±sqrt( 4/25)

Make two equations

2-x < 2/5    2-x > -2/5

Subtract 2 from each side

2-x-2 < 2/5 -2          2-x-2  > -2/5-2

-x < 2/5 -  10/5             -x > -2/5  - 10/5

-x < -8/5                         -x > -12/5

Multiply by -1, remembering to flip the inequality

x> 8/5                   x < 12/5

8/5 < x< 12/5

5 0
3 years ago
Read 2 more answers
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