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Tanzania [10]
3 years ago
11

Solve the following equation, answer as a reduced, mixed number. Then place the correct number in the box provided. 4(7x - 1) =

3(2x + 1) - 4(x + 6)
Mathematics
2 answers:
vesna_86 [32]3 years ago
7 0

Answer:

The correct answer is x= -17/26

Step-by-step explanation:

First, what we do is expand this equation:

4(7x-1)=28x-4

and

3(2x+1)-4(x+6)=6x+3-4x-24=2x-21

Equalling this two equations:

28x-4=2x-21

Passing terms

28x-2x=-21+4  =>  26x= -17  => x= -17/26

Thus the answer is x= -17/26

AVprozaik [17]3 years ago
7 0

The correct answer is:  -17/26

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A bakeware company is designing a prototype for a new cake pan. The pan needs to have a height of 1.5 inches so that the cake la
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Step-by-step explanation:

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2 years ago
A conveyor belt carries supplies from the first floor to the second floor, which is 39 feet higher.
Murljashka [212]

The supplies travelled 45ft and it took 0.6min to get to the next floor.

<h3>What is trigonometry?</h3>

Trigonometry is the branch of mathematics dealing with the relationship between the sides of a triangle and the angles.

Analysis:

The supplies distance travelled, distance of first floor from second floor and the ground form a right angled triangle.

so that sin 60 = 39/distance travelled by supplies

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speed = distance / time

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In conclusion, the distance and time time taken for the supplies to get to the next floor is 45feet and 0.6 min respectively.

Learn more about trigonometry: brainly.com/question/24349828

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2 years ago
Explain why graphing the solutions of an inequality is more efficient than listing all the solutions of the inequality.
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A family is relocating from St. Louis, Missouri, to California. Due to an increasing inventory of houses in St. Louis, it is tak
Dafna1 [17]

Answer:

a. Assume that the population has a normal distribution.

b. The 90% confidence interval of the mean sale time for all homes in the neighborhood is between 219.31 days and 240.69 days.

Step-by-step explanation:

Question a:

We have to assume normality.

Question b:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

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Now, find the margin of error M as such

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In which \sigma is the standard deviation of the population and n is the size of the sample.

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The lower end of the interval is the sample mean subtracted by M. So it is 230 - 10.69 = 219.31 days.

The upper end of the interval is the sample mean added to M. So it is 230 + 10.69 = 240.69 days.

The 90% confidence interval of the mean sale time for all homes in the neighborhood is between 219.31 days and 240.69 days.

7 0
3 years ago
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