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2 years ago

Without multiplying, tell which product is larger and why.

Mathematics

1 answer:

Mademuasel [1]2 years ago

5 0

Answer:

because 6 is larger then 4

Step-by-step explanation:

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What is the value of the expression -38-16-(-23)? O-31 O-45 O-54 O-77

ohaa [14]

Answer:

-31

Step-by-step explanation:

$-38-16-(-23) \\ \\ =-38-16+23 \\ \\ =-54+23 \\ \\ =-31$

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11 months ago

3) 6 cm 5 cm I 7 cm 5 cm 6 cm

lord [1]

Answer:

Step-by-step explanation:

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3 years ago

What are the zeros of the graphed function y = 1/3 (x + 3)(x + 5)?

Darya [45]

One factor will be zero, hence y will be zero, when x=-3.

The other factor will be zero, hence y will be zero, when x=-5.

The zeros of the function are x ∈ {-5, -3}.

_____

This solution makes use of the "zero product rule," which states a product is zero if and only if one or more factors is zero.

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2 years ago

If f(x) = 4x - 20, what is f(4)? O A. -4 оо O B. -12 O c. 4 O D. 16

4vir4ik [10]

Answer:

A. - 4

Step-by-step explanation:

f(4) = 4(4) - 20 = 16 - 20 = - 4

7 0

3 years ago

Read 2 more answers

Franchise Business Review stated over 50% of all food franchises earn a profit of less than $50,000 a year. In a sample of 130 c

nydimaria [60]

Answer:

We need a sample size of 564.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

For this problem, we have that:

$\pi = \frac{81}{130} = 0.6231$

The margin of error is:

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

95% confidence level

So $\alpha = 0.05$ , z is the value of Z that has a pvalue of $1 - \frac{0.05}{2} = 0.975$ , so $Z = 1.96$ .

Based upon a 95% confidence interval with a desired margin of error of .04, determine a sample size for restaurants that earn less than $50,000 last year.

We need a sample size of n

n is found when $M = 0.04$