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Nata [24]
2 years ago
15

Identify the inequality that describes this graph​

Mathematics
2 answers:
Mademuasel [1]2 years ago
4 0

Answer:

Option 2: y ≥ x + 5

Step-by-step explanation:

"y ≥ [equation]" means everything above line is shaded.

"y ≤ [equation]" means everything below line is shaded.

Everything above the line is shaded in the equation so the correct option is the one with a "y ≥ [equation]" (2nd option).

Dovator [93]2 years ago
4 0

Answer:

y ≥ x + 5

Step-by-step explanation:

When graphing inequalities

  • use a dashed line for < or >
  • use a solid line for ≤ or ≥
  • Shade above the line for greater than: y > or y ≥
  • Shade below the line for a less than: y < or y ≤

Therefore, as the shaded is above the line, the inequality is y ≥ x + 5

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What is the total cost of a $28 pair of jeans if the sales tax is 7.5%?
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Answer:

30.10

Step-by-step explanation:

First find the amount of tax

28 * 7.5%

28 * .075

2.10

Add this to the price of the pants

28+2.10 =30.10

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2 years ago
Use the normal distribution and the given sample results to complete the test of the given hypotheses. Assume the results come f
AlladinOne [14]

Answer:

z=\frac{0.64 -0.5}{\sqrt{\frac{0.5(1-0.5)}{75}}}=2.43  

Now we can calculate the p value with the following probability:

p_v =P(z>2.43)=0.0075 \approx 0.008  

Since the p value is lower than the significance level we have enough evidence to reject the null hypothesis and we can conclude that the true proportion for this case is higher than 0.5

Step-by-step explanation:

Data given and notation

n=75 represent the random sample taken

\hat p=0.64 estimated proportion of interest

p_o=0.5 is the value that we want to test

\alpha=0.05 represent the significance level

Confidence=95% or 0.95

z would represent the statistic

p_v represent the p value

System of hypothesis

We want to verify if the true proportion is higher than 0.5:  

Null hypothesis:p =0.5  

Alternative hypothesis:p > 0.5  

The statistic is given by:

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

Replacing the info given we got:

z=\frac{0.64 -0.5}{\sqrt{\frac{0.5(1-0.5)}{75}}}=2.43  

Now we can calculate the p value with the following probability:

p_v =P(z>2.43)=0.0075 \approx 0.008  

Since the p value is lower than the significance level we have enough evidence to reject the null hypothesis and we can conclude that the true proportion for this case is higher than 0.5

7 0
3 years ago
At Basketball practice Kyla made 60 free throws this was 80% of her attempts how many free throws did kyle attempt?
DanielleElmas [232]
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3 years ago
I don't understand how to solve these problems
iragen [17]
When adding fractions you need to get common denominators then you multiply too times bottom and then boom add and there you go
8 0
3 years ago
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