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3 years ago

This is not the same one as before. Which in inequality matches the graph ?

Mathematics

2 answers:

Nataly_w [17]3 years ago

5 0

6w+6>18 is the correct answer. Because if you replace 2 with the w it would be true. Also the 2 is graphed as a open circle and is not included in the inequality.

Llana [10]3 years ago

5 0

<span>6w+6>18 that your correct answer to your question</span>

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the cost of a ticket to a park is 42 per person for a group of 8 people the cost per ticket decreses by 3 for each person in the

JulijaS [17]

$42 \times 8 \div 3 \$
then

8 0

3 years ago

1. The national mean (μ) IQ score from an IQ test is 100 with a standard deviation (s) of 15. The dean of a college wants to kno

Nat2105 [25]

Answer:

We conclude that the mean IQ of her students is different from the national average.

Step-by-step explanation:

We are given that the national mean (μ) IQ score from an IQ test is 100 with a standard deviation (s) of 15.

The dean of a college want to test whether the mean IQ of her students is different from the national average. For this, she administers IQ tests to her 144 students and calculates a mean score of 113

Let, Null Hypothesis, $H_0$ : $\mu$ = 100 {means that the mean IQ of her students is same as of national average}

Alternate Hypothesis, $H_1$ : $\mu\neq$ 100 {means that the mean IQ of her students is different from the national average}

(a) The test statistics that will be used here is One sample z-test statistics;

T.S. = $\frac{Xbar-\mu}{\frac{s}{\sqrt{n} } }$ ~ N(0,1)

where, Xbar = sample mean score = 113

s = population standard deviation = 15

n = sample of students = 144

So, test statistics = $\frac{113-100}{\frac{15}{\sqrt{144} } }$

= 10.4

Now, at 0.05 significance level, the z table gives critical value of 1.96. Since our test statistics is more than the critical value of z which means our test statistics will fall in the rejection region and we have sufficient evidence to reject our null hypothesis.

Therefore, we conclude that the mean IQ of her students is different from the national average.

3 0

4 years ago

A) The y-intercept of the line with the largest slope

lord [1]

Answer:

a) the largest y-intercept is 1

b) 13.5

c) y=x-3

d) 8

Step-by-step explanation:

the question was worded very strangely and I will answer the way I precieved it.

for question d, I simply considered the question to be asking what is X when y is 17 and since the equation of that line is 2x-1

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3 years ago

SEE IMAGE! Two lines below intersect to form four angles, as shown. The measure of angle 2 is 114°. What is the sum of the measu

o-na [289]

ANSWER:

Angles 2 and 4 are vertical angles, which means they have the same angle measure because they are opposite of each other. So angles 2 and 4 are both 114 so that makes 228. All of the angles have to make 360, so 360 - 228 = 132. Then, 132/2 because there are two angles. That makes 66. And angles 1 and 3 are also vertical angles so they are also the same

The answer is 132

8 0

3 years ago

A new car is sold with or without antilock brakes, with or without a CD player, with or without electric seats, and with or with

True [87]

Answer:

8 different choices

Step-by-step explanation:

With or without antibrake=2 ways

With or without player=2ways

With or without sunroof=2 ways

Total number of ways=2×2×2=8 ways

3 0

3 years ago