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inessss [21]
3 years ago
14

I dont even know i bjust need points sorry ;9

SAT
2 answers:
Umnica [9.8K]3 years ago
6 0

Answer:

Felt that oneeeeeeeeeeeeee

tensa zangetsu [6.8K]3 years ago
3 0
I get you we all need
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If the system of linear equations below has no solution, and a is a constant, what is the value of a?"A. -2 B. -½ C. 2 D. and 2
Mumz [18]

Answer:

a = 6

Explanation:

If the system of equations has no solution, their graphs have the same slope.

1. Slope of first equation

\begin{array}{rcl}|\frac{1}{2}x - \frac{2}{3} y|& = & 7\\|3x - 4y| & = & 42\\3x - 4y & = & \pm42\\-4y & = & -3x \pm 42\\y & = & \frac{3}{4}x \mp \frac{42}{4}\\\\\text{Slope}& = & \dfrac{3}{4} \end{array}

2. Slope of second equation

\begin{array}{rcl}|ax - 8y| & = & 1\\ax - 8y & = & \pm 1\\-8y & = & -ax \pm 1\\y & = & \frac{a}{8}x\mp \frac{1}{8}\\\\\text{Slope} & = & \dfrac{a}{8}\\\end{array}

3. Value of a

\begin{array}{rcl}\dfrac{3}{4} & = & \dfrac{a}{8}\\\\a & = & \dfrac{24}{4}\\\\ & = & \mathbf{6}\\\end{array}

Check:

\begin{array}{rcrrcl}|\frac{1}{2}x - \frac{2}{3} y|& = & 7 & \qquad |6x - 8y| & = &1\\|3x - 4y| & = & 42 &|3x - 4y| &= &\frac{1}{2} & \\\end{array}\\\text{Both equations have the same slope}

3 0
3 years ago
jabria added water to a tank by opening a valve to produce a constant stream of water. after 7 minutes, the tank contained 3,482
scZoUnD [109]

Using a linear function, it is found that 1466 gallons of water were in the tank when jabria began adding water.

<h3>What is a linear function?</h3>

A linear function is modeled by:

y = mx + b

In which:

  • m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
  • b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.

In this problem, we have that in 12 minutes, the amount of water increased by 3456 gallons, hence the slope is given by:

m = 3456/12 = 288.

In 7 minutes, the tank contained 3,482 gallons of water, hence the initial amount was given by:

3482 - 7 x 288 = 1466.

1466 gallons of water were in the tank when jabria began adding water.

More can be learned about linear functions at brainly.com/question/24808124

#SPJ1

6 0
2 years ago
From an ethical stance, researchers should choose topics of study that
fomenos
I believe the answer is the third option. Simply because a topic can be studied quickly or inexpensively doesn’t mean that it is ethical. Topics of study that are politically correct may be seen as ethical for some, but not to others, while a topic that will improve the lives of many would be seen as ethical by the general population.
4 0
3 years ago
Which are shown on a balance sheet? Select three choices. assets liabilities age time period date of birth
Bond [772]

Assets, liabilities, time period should be shown on a balance sheet.

  • Balance Sheet are often regarded as financial statement that simply tells a brief summary of a company's assets, liabilities and shareholders' equity at a particular point in time.
  • Assets are said to be company's or individual's resource that is of economic importance  corporation or that belongs or controled by country with the view that it will give future benefit.

From the above, we can therefore say that the answer Assets, liabilities, time period should be shown on a balance sheet is correct

Learn more from:

brainly.com/question/14314539

4 0
3 years ago
Read 2 more answers
Matthew has a jar of 368 nickels and dimes he has been collecting. The total value of the coins is $28. 40. Which system of line
photoshop1234 [79]

Answer:200 nickels and 168 dimes

Explanation:N+d=368

4 0
3 years ago
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