I will give brainliest if you answer this

kogti [31]

Answer:

16. 29 and 30

17. C. 30 D. 31

Step-by-step explanation:

16. Given the inequality c ≤ $30, which is used to represent the situation, it implies that possible value of c must be equal to $30 or less than $30.

Two possible solutions form the options given would be:

29 and 30.

29 is less than 30, and 30 is equal to 30.

17. The inequality given is b ≥ 30.

This implies that possible solutions will be equal to 30 or greater than 30. It cannot be less than 30.

The solutions that apply would be:

30 (this is equal to 30) and 31 (this is greater than 30).

The remaining options don't satisfy or make the inequality statement true.

5 0

3 years ago

How many 1/2s are in 7? Then, write a multiplication equation and a division equation that answer the question.

vova2212 [387]

Answer:

14

Step-by-step explanation:

How many 1/2s are in 7? Then, write a multiplication equation and a division equation that answer the question.

Let the number of 1/2s = x

Hence:

Division Equation =

7 ÷ 1/2

Multiplication Equation =

= 7 × 2/1

= 14

There are 14 1/2s in 7

7 0

3 years ago

In a survey, 32% of the respondents stated that they talk to their pets on the telephone. A veterinarian believed this result

adoni [48]

Answer:

$z=\frac{0.29 -0.32}{\sqrt{\frac{0.32(1-0.32)}{210}}}=-0.932$

$p_v =P(z$

So the p value obtained was a very high value and using the significance level given $\alpha=0.05$ we have $p_v>\alpha$ so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can said that at 5% of significance the proportion of pet owners contacted by telephone is NOT significantly lower than 0.32

Step-by-step explanation:

Data given and notation

n=210 represent the random sample taken

X=61 represent the number of pet owners contacted by telephone

$\hat p=\frac{61}{210}=0.29$ estimated proportion of pet owners contacted by telephone

$p_o=0.32$ 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 (variable of interest)

$p_v$ represent the p value (variable of interest)

Concepts and formulas to use

We need to conduct a hypothesis in order to test the claim that the true proportions is lower than 0.32.:

Null hypothesis: $p \geq 0.32$

Alternative hypothesis: $p < 0.32$

When we conduct a proportion test we need to use the z statistic, and the is given by:

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

The One-Sample Proportion Test is used to assess whether a population proportion $\hat p$ is significantly different from a hypothesized value $p_o$ .

Calculate the statistic

Since we have all the info requires we can replace in formula (1) like this:

$z=\frac{0.29 -0.32}{\sqrt{\frac{0.32(1-0.32)}{210}}}=-0.932$

Statistical decision

It's important to refresh the p value method or p value approach . "This method is about determining "likely" or "unlikely" by determining the probability assuming the null hypothesis were true of observing a more extreme test statistic in the direction of the alternative hypothesis than the one observed". Or in other words is just a method to have an statistical decision to fail to reject or reject the null hypothesis.

The significance level provided $\alpha=0.05$ . The next step would be calculate the p value for this test.

Since is a left tailed test the p value would be:

$p_v =P(z$

So the p value obtained was a very high value and using the significance level given $\alpha=0.05$ we have $p_v>\alpha$ so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can said that at 5% of significance the proportion of pet owners contacted by telephone is NOT significantly lower than 0.32

3 0

3 years ago

A soccer team is having a car wash.the team spent $55 on supplies.they earned $275 including tips.The teams profit is the amount

Mars2501 [29]

For the given values $55 spent on the soccer team on supplies and they earned $275 on car wash including all the tips they got. Solution:-55 (because of the expense of the team on supplies) + 275 (because of the profit of car wash business of the team)-55 +275 = 220 The team car wash profit is $220 after paying for the supplies.An integer is a whole number that can be negative, positive, or can also be zero. An Integer cannot be fraction or decimal, it is any number that can be written without a fractional component. A sum of an integer using the formula (N(N + 1))/2, it is the simplified form.

5 0

3 years ago

Jamison owns a smoothie shop. He is placing an order for strawberries and pineapple juice for a new specialty drink. Which would

gregori [183]

The most likely and preferred unit of measurement for the number of strawberries is pounds.

Given that,
Jamison owns a smoothie shop. He is placing an order for strawberries and pineapple juice for a new specialty drink. Which would be the most appropriate unit of measurement for the number of strawberries Jamison will order is to be determined.

<h3>What is a measurement unit?</h3>

Measurement units are the units of measurement of all three states of matter.

Here,
Strawberries have moderate weight and are solid as well so the most preferred unit for the measurement is ounces for moderate use and pound for commercial use,

Since Jamison has a shop, and he uses strawberries for commercial use to make drinks and sell it further, implies pounds is the appropriate unit of measurement.

Thus, The most likely and preferred unit of measurement for the number of strawberries is pounds.

Learn more about measurement here:
brainly.com/question/4725561
#SPJ1

3 0

2 years ago