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umka2103 [35]
4 years ago
5

Is the equation no solution, all solution, or one solution? 2(x+1)+3x= 2x+1​

Mathematics
1 answer:
julia-pushkina [17]4 years ago
7 0

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

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

3x=-1

x=-1/3

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A student simplified the radical expression at the right. What mistake did the student make? What is the correct answer?
Leni [432]
X has to be inside the radical.
It would be
\sqrt{ \frac{5x}{5} }
Simplify the radical by breaking the radicand up into a product of known factors.
8 0
3 years ago
Which image shows the opposite of the opposite of `2/3` on a vertical number line​
Fofino [41]

Answer:

c

Step-by-step explanation:

only one with negative 1

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3 years ago
Engineers must consider the breadths of male heads when designing helmets. The company researchers have determined that the popu
Tju [1.3M]

Answer:

a) 3.3352 inches.

b) 8.2648 inches.

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question:

\mu = 5.8, \sigma = 1.2

A. What is the minimum head breadth that will fit the clientele?

This is the 2nd percentile, which is X when Z has a pvalue of 0.02. So X when Z = -2.054.

Z = \frac{X - \mu}{\sigma}

-2.054 = \frac{X - 5.8}{1.2}

X - 5.8 = -2.054*1.2

X = 3.3352

So the minimum head breadth that will fit the clientele is 3.3352 inches.

B. What is the maximum head breadth that will fit the clientele?

The 100-2 = 98th percentile, which is X when Z has a pvalue of 0.98. So X when Z = 2.054.

Z = \frac{X - \mu}{\sigma}

2.054 = \frac{X - 5.8}{1.2}

X - 5.8 = 2.054*1.2

X = 8.2648

So the maximum head breadth that will fit the clientele is 8.2648 inches.

8 0
4 years ago
The slope of BY is -1/5, and BYllJE<br> What is the slope of JE?<br><br> -5<br> -1/5<br> 1/5<br> 5
Natasha_Volkova [10]
I believe "BY || JE" means that those two lines are congruent, which means the slope of JE would be the same as the slope of BY. So in this case the answer should be B. -1/5.

I hope this helped.
4 0
3 years ago
Read 2 more answers
I GIVE BRAINIEST
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Answer:

387 is unnecessary information.

Step-by-step explanation:

5 0
3 years ago
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