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blsea [12.9K]
3 years ago
5

Solve the equation for the given replacement set. State the solution set.

Mathematics
1 answer:
Feliz [49]3 years ago
3 0
X=3 . ok well ur gonna do reverse mathematics so start by subtracting 2 from 17 (bc the oppistite of addition is subtraction) an then rewrite the equation. 5x=15 and then divide 15 by 5 and it equals 3 and then do it all over again meaning put the equation as it was but with the value. 5x3+2=17 and it all makes sense. im so sorry i answered so late i just got this question recommended to me.
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ki77a [65]

Answers

1. 9/2

2. 1/8

3. 5/9

4 0
3 years ago
Which graph represents the solution to the given system? y = –2x + 5 and y = 3x – 2
DaniilM [7]
Y = -2x + 5        y =3x - 2
Since both equations are equal to 'y' you can set them equal to each other to solve.
-2x + 5 = 3x - 2             Subtract 3x from both sides
-5x + 5 = -2                  Subtract 5 from both sides
-5x = -7                        Divide -5 on both sides
x = 7/5
Plug 7/5 back in for x and solve for y.
y = -2(7/5) + 5
y = (-14/5) + (25/5)
y = 11/5
(7/5, 11/5) OR (1.4, 2.2)


4 0
3 years ago
Read 2 more answers
For the vectors u and v with magnitudes u = 88 and v = 99​, find the angle θ between u and v which makes u and v = 77.
WARRIOR [948]

Answer:

<h2>89.5°</h2>

Step-by-step explanation:

Using the vector formula u.v = |u||v|cos\theta

|u| = magnitude of vector u

|v| = magnitude of vector v

u.v is the dot product of vector u and v

Given |u| = 88, |v| = 99 and u.v = 77, to get \theta we will substitute the given values into the equation above;

77 = 88*99cos\theta\\cos\theta = \frac{77}{88*99} \\cos\theta = \frac{77}{8712} \\cos\theta = 0.008838\\\theta = cos^{-1} 0.008838\\\theta = 89.5^{0}

4 0
3 years ago
Please help I am begging !!!!!25 points!!!!! Brainlest !!!!!! Please help me I really need it the questions are on the bottom th
tangare [24]

Answer:

A the sybol is facing the wrong way so it means greater than or equal not less than or equal to

B the gross value is accuratly represented and the symbol is facing the correct way

I think


6 0
4 years ago
-4x+y= 6 <br>-5x-y=21 what is the answer​
bekas [8.4K]

Answer:

x=15

Step-by-step explanation:

21-6=15

-4x+y=-5x-y=15

x+y=-y=15

x=15

6 0
3 years ago
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