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harkovskaia [24]
3 years ago
9

For the equation y=1-2x,find the value of y when (a)x=-4, (b)x=-2, (c)x=0, (d)x=2.

Mathematics
1 answer:
Fofino [41]3 years ago
6 0

Step-by-step explanation:

1st answer y=1-2×-4

y=1+8

y=9

2nd answer y=1-2×-2

y=1+4

y= 5

3rd answer y=1-2×0

y=1-0

y=1

4th answer y=1-2×2

y=1-4

y=-3

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Answer:

Except k=7, any real number for k would cause the system of equations to have no solution.

Step-by-step explanation:

In general a system of equations can be represented as ax+by=c and dx+ey=f. In order this system of equations to have NO SOLUTIONS a/d=b/a≠c/f. In our example a=6, b=4, c=14, d=3, e=2 and f=k. To apply the formula above, 6/3=4/2≠14/k. Hence k≠7. It can be concluded that except k=7, any real number for k would cause the system of equations to have no solutions.

Just for information, if k=7 the system will have infinitely many solutions.

5 0
3 years ago
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What is x if y Is 5 <br> x^2 (2y +5)=240
UkoKoshka [18]
X^2(2y+5)=240
x^2(2(5)+5)=240
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6 0
3 years ago
The Mean Corporation's statisticians would like to construct a hypothesis test for the mean annual profit (μ) earned by health-d
Jobisdone [24]

Missing Part of Question

Juice that is opened. It is known that the annual profits earned by health-drink franchises has a population standard deviation of $8,700

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Answer:

z = 1.157

Step-by-step explanation:

Given

Annual profit as calculated = $90,300.

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z = (90,300 - 89,000)/(8700/√60)

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3 years ago
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nikdorinn [45]
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2 years ago
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Answer:

The correct option is C

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