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n200080 [17]
3 years ago
13

Need help with this solve for x question!

Mathematics
1 answer:
olga nikolaevna [1]3 years ago
7 0

Answer:

x=4

Step-by-step explanation:

RS + ST = RT

5+ 2x-2 = 3x-1

Combine like terms

2x+3 = 3x-1

Subtract 2x from each side

2x+3-2x = 3x-1-2x

3 =x-1

Add 1 to each side

3+1 = x-1+1

4=x

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What is negative 6x squared take away 586 =84x take away 4
olchik [2.2K]

Answer:

This equation has no real roots

Step-by-step explanation:

We want to solve

- 6 {x}^{2}  - 586 = 84x - 4

We group all terms on the left:

- 6 {x}^{2}  - 84x - 586 + 4 = 0

- 6 {x}^{2}  - 84x - 582= 0

Divide through by -6

{x}^{2}  + 14x + 97 = 0

The discriminant is

{14}^{2}  - 4 \times 1 \times 97 =  - 192

This means the given equation has no real solution, since the discriminant is less than 0

6 0
3 years ago
If a sprinkler waters 1 over 20 of a lawn in 1 over 5 of an hour, how much time will it take to water the entire lawn?
Lubov Fominskaja [6]
Answer: C. 4 hours

Explanation: 
You first measure how long 1/5 of an hour is in which is 12 minutes. You then multiply 12 by 20 because it takes 12 minutes to get 1/20 of the lawn watered. Your answer now should be 240. Finally, divide that number by 60 because you are measuring time in hours. Your final answer should be 4 hours.
4 0
3 years ago
What the answer 2x - 2= -18
Luden [163]

Answer:

Step-by-step explanation:

2x - 2 = -18

To cancel the -2, add 2 to both sides.

2x = -16

Divide both sides by two to isolate the x.

X = -8

7 0
4 years ago
Read 2 more answers
Determine if the two triangles are congruent. If they are, state how you know.
blondinia [14]
All are congruent. Congruent means identical in size or shape. the different markings on the two shapes show that they are congruent. I can’t fully see number 10 so I can’t say it that one is or not
3 0
3 years ago
Which of the following ordered pairs is a solution of the given system of linear equations?
Jlenok [28]
The solution is A) (11, 1).
4 0
4 years ago
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