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2 years ago

Will give brainliest but it Has to be correct.

Mathematics

1 answer:

Kisachek [45]2 years ago

4 0

Answer: 6/8 inch

Step-by-step explanation:

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ILL MARK BRAINIEST IF YOU DO THIS CORRECTLY

ruslelena [56]

The answer is 5,6,6,7

6 0

2 years ago

A marketing research company desires to know the mean consumption of milk per week among people over age 30. They believe that t

Nitella [24]

Answer:

651 is the minimum number of people over age 30 they must include in their sample.

Step-by-step explanation:

We are given the following information:

Confidence level = 90%

Significance level = 10%

Maximum error = 0.09

Variance = 1.96

$\text{Standard Deviation} = \sqrt{\text{Variance}} = \sqrt{1.96} = 1.4$

Formula:

$\text{Error} = z_{critical}\dfrac{\sigma}{\sqrt{n}}$

Putting all the values,

$z_{critical}\text{ at}~\alpha_{0.05} = \pm 1.64$

$0.09 = 1.64\times \dfrac{1.4}{\sqrt{n}}\\\\n = (\dfrac{1.64\times 1.4}{0.09})^2 = 650.81 \approx 651$

651 is the minimum number of people over age 30 they must include in their sample.

7 0

3 years ago

Use the following graph of the function f(x) = 2x^3 + x^2 - 3x + 1 to answer this question: what is the average rate of change f

topjm [15]

Answer:

m = -2/2 = -1

8 0

2 years ago

Anybody got an answer?

vitfil [10]

Step-by-step explanation: Let the event of getting Country, Rock and roll, Blues be E, E1 , E3 respectively.

P(E1) = No. of favorable outcomes / Total no. of outcomes

= 11/ 11+17+8 = 11/36

P(E2) = 17/36

P(E3) = 8/36 = 4/18 = 2/9

6 0

3 years ago

What are the x- and y-intercepts of the graph of y = x2 + x − 6?

fenix001 [56]

Answer:

Step-by-step explanation:

To find the y- intercept let x = 0, hence

y = 0 + 0 - 6 = - 6 ⇒ (0, - 6) ← y- intercept

To find the x- intercepts let y = 0, that is

x² + x - 6 = 0 ← in standard form

(x + 3)(x - 2) = 0 ← in factored form

Equate each factor to zero and solve for x

x + 3 = 0 ⇒ x = - 3

x - 2 = 0 ⇒ x = 2

Hence x- intercepts are (- 3, 0) and (2, 0)

6 0

3 years ago