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Ivanshal [37]
3 years ago
12

How do I find range and domain in algebra (graph)​

Mathematics
1 answer:
Ierofanga [76]3 years ago
4 0

Answer:

You can find the range by seeing the y-value of the plotted points.

You can find domain by looking at the x-values of the plotted points.

Hope you found this helpful!!!

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If Jamie has five dollars and purchases a soda for one dollar and fifteen cents, how much change does Jamie get back
nika2105 [10]
5.00
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1.15
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3.85
3 0
3 years ago
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Find x and y <br><br> pls help
ahrayia [7]

Answer:

x = 14

Step-by-step explanation:

110 + 5x = 180

-110 -110

5x = 70

divide by 5 on both sides

x = 14

to find y add 70 + 40 + missing angle = 2y

missing angle is 70 because 70+40+70 = 180

so 2y = 110

y = 55

3 0
2 years ago
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An engineer has designed a valve that will regulate water pressure on an automobile engine. The valve was tested on 110 engines
slava [35]

Answer:

we will fail to reject the null hypothesis and conclude that the mean pressure is not different from 4.7 psi

Step-by-step explanation:

Let's first define the hypothesis;

Null hypothesis: H0: μ = 4.7

Alternative hypothesis: Ha: μ ≠ 4.7

We have;

Sample size; n = 110

Sample mean; x¯ = 4.6

Variance: σ² = 0.64

Standard deviation; σ = √0.64 = 0.8

Formula for test statistic is;

z = (x¯ - μ)/(σ/√n)

z = (4.6 - 4.7)/(0.8/√110)

z = -0.1/0.0763

z = -1.31

From online p-value from z-score calculator attached, using; z = -1.31, two tailed hypothesis, significance value of 0.1, we have;

P-value = 0.190196

The p-value is greater than the significance value and thus we will fail to reject the null hypothesis and conclude that the mean pressure is not different from 4.7

σ μ

8 0
2 years ago
6.9•10 to the fourth power divided by 6.6•10 to the negative 5
e-lub [12.9K]
23/200
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3 0
3 years ago
A sequence is defined by the formula f(n + 1) = f(n) – 3. If f(4) = 22, what is f(1)?
julsineya [31]

f(n) = f(n+1) +3

f(1) = f(2) +3

f(2) =f(3) +3

f(3) = f(4) +3

So f(1) = f(n) + 3* (n-1)

Put n=4 here so you found

f(1) = f(4) + 3* 3

= 22 +9

=31 ans




                             hope it helps

5 0
3 years ago
Read 2 more answers
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