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3 years ago

Y=3x+4 solve show work

1 answer:

5 0

One solution:
x= 0
Y = 3x+ 4 = 4

Another solution:
x = -3
Y = 3x + 4 = -5

Another solution:
x = -1
Y = 3x + 4 = 1

Another solution:
x = 1
Y = 3x + 4 = 7

Another solution:
x = 5
Y = 3x + 4 = 19

Another solution:
x = -10
Y = 3x + 4 = -26

Another solution:
x = 10
Y = 3x + 4 = 34

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25 goes into 130 how many times

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5 times.

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Angles that share a vertex, but not a side are called?

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4 years ago

A peregrine falcon can fly 332 kilometers per hour.How many meters per hour can the falcon fly.

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3 years ago

Brandy wants to buy a digital camera that cost $300. Suppose she saves $15 each week. In how many weeks will she have enough mon

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3 years ago

Read 2 more answers

he response times for a random sample of 40 medical emergencies were tabulated. The sample mean is 13.25 minutes. The population

Gwar [14]

Answer:

The calculated value Z = 2.5 > 1.96 at 0.05 level of significance

The null hypothesis is rejected

The Alternative hypothesis is rejected

The EMS director wants to service goal of 12 minutes or less is being achieved

Step-by-step explanation:

Step(i):-

Given that the size of the random sample = 40

Given that the mean of the sample (x ⁻) = 13.25

Given that the standard deviation of the Population = 3.2 minutes

Level of significance = 0.05

The mean of the Population (μ) = 12

Step(ii):-

Null hypothesis:-H₀: (μ) = 12

Alternative Hypothesis: H₁ : μ < 12

Test statistic

$Z = \frac{x^{-}-mean }{\frac{S.D}{\sqrt{n} } }$

$Z = \frac{13.25-12 }{\frac{3.2}{\sqrt{40} } }$

Z = 2.5

The tabulated value Z₀.₀₅ = 1.96

The calculated value Z = 2.5 > 1.96 at 0.05 level of significance

The null hypothesis is rejected

The Alternative hypothesis is rejected

Final answer:-

The EMS director wants to service goal of 12 minutes or less is being achieved

3 0

3 years ago