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rewona [7]
3 years ago
7

Solve for x -2x-1+3x=7

Mathematics
2 answers:
zaharov [31]3 years ago
6 0
X=8 is the answer to this question
Ne4ueva [31]3 years ago
3 0

Answer:

-8/5

Step-by-step explanation:

Start by grouping the x terms and the constant terms.  We get:

-5x = 8, so that

x = -8/5

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8 1/5 - 3 4/5 help me PLEEEEEASE
Alex17521 [72]

Answer:

1/5x(41-19h)

41/5-19/5h

Step-by-step explanation:

3 0
3 years ago
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Please help with this​
gladu [14]
Answer: Y=-3x+5
Explanation:
6 0
3 years ago
Complete parts (a) and (b) using the probability distribution below.
katen-ka-za [31]
Μ = (0×0.026) + (1×0.072) +(2×0.152) + (3×0.303) + (4×0.215) + (5×0.164) + (6×0.066) 
μ = 0 + 0.072 + 0.304 + 0.909 + 0.86 + 0.82 + 0.396
μ = 3.361 ≈ 3.4

We need the value of ∑X² to work out the variance
∑X² = (0²×0.026) + (1²×0.072) + (2²×0.152) + (3²×0.303) + (4²×0.215) + (5²×0.164) + (6²×0.066)
∑X² = 0+0.072+0.608+2.727+3.44+4.1+2.376
∑X² = 13.323

Variance = ∑X² - μ²
Variance  = 13.323 - (3.4)² = 1.763 ≈ 2

Standard Deviation = √Variance = √1.8 = 1.3416... ≈ 1.4

The correct answer related to the value of mean and standard deviation is the option D
<span>
An employee works an average of 3.4 overtime hours per week with a standard deviation of approximately 1.4 hours.</span>
7 0
3 years ago
A surveyor measures the angle of elevation to a point on a mountain, that is 6 miles away, to be 15 degrees. The vertical change
cricket20 [7]
You can draw a right triangle with the informatio.

The vertical change in elevation (unknown) is the opposed leg to the angle 15°

The distance from the surveyor to the point vertically below the point on the mountain is the adjacent leg = 6 miles.

Then tan(15°) = x / 6 => x = 6tan(15) = 1.61 miles

Answer: 1.61 miles
6 0
3 years ago
Read 2 more answers
What is the quotient of 3/4 divided by 1/5
Charra [1.4K]

Answer:

15/4

Step-by-step explanation:

3/4:1/5= 3/4*5= 15/4

3 0
3 years ago
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