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2 years ago

15

Sid need 0.6 meters of canvas material to make a carry-all bag for his wheelchair.if canvas is $10.09 per meter, how much will s

id spend (round to the nearest cent as needed.)

1 answer:

Olegator [25]2 years ago

8 0

$6.05 because 10.09 × 0.6 is 6.054, round down because the last number is less than 5, and you have 6.05.

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1. Walking to improve health. In a study investigating a link between walking and improved health (Social Science & Medicine

lora16 [44]

Answer:

a) We need to conduct a hypothesis in order to check if the true average number of days in the past month that adults walked for the purpose of health or recreation is lower than 5.5 days (a;ternative hypothesis) , the system of hypothesis would be:

Null hypothesis: $\mu \geq 5.5$

Alternative hypothesis: $\mu < 5.5$

b) For this case since we want to determine if the true mean is lower than an specified value is a one tailed test

c) For this case the significance level is given $\alpha=0.01$ and we want to find the critical value, so we need to find a critical value on the normal standard distribution who accumulate 0.01 of the area on the right tail and if we use excel or a table we got:

$z_{cric}= -2.326$

And the rejection zone would be: $(\infty ,-2.326)$

And the region is on the figure attached

Step-by-step explanation:

Part a: State the null and alternative hypotheses.

We need to conduct a hypothesis in order to check if the true average number of days in the past month that adults walked for the purpose of health or recreation is lower than 5.5 days (a;ternative hypothesis) , the system of hypothesis would be:

Null hypothesis: $\mu \geq 5.5$

Alternative hypothesis: $\mu < 5.5$

Part b

For this case since we want to determine if the true mean is lower than an specified value is a one tailed test

Part c

For this case the significance level is given $\alpha=0.01$ and we want to find the critical value, so we need to find a critical value on the normal standard distribution who accumulate 0.01 of the area on the right tail and if we use excel or a table we got:

$z_{cric}= -2.326$

And the rejection zone would be: $(\infty ,-2.326)$

And the region is on the figure attached

3 0

2 years ago

Which equation correctly uses point (–2, –6) to write the equation of this line in point-slope form? Y – 6 = y minus 6 equals St

GenaCL600 [577]

Answer:

Part 1) $y+6=\frac{2}{5}(x+2)$

Part 2) $y+6=\frac{5}{2}(x+2)$

Step-by-step explanation:

The equation of the line in point slope form is

$y-y1=m(x-x1)$

we're going to analyze two cases

<em>First case</em>

$Point\ (-2,-6)$

$slope\ m=\frac{2}{5}$

substitute

$y+6=\frac{2}{5}(x+2)$

therefore

y plus 6 equals StartFraction 2 Over 5 EndFraction left-parenthesis x plus 2 right parenthesis

<em>Second case</em>

$Point\ (-2,-6)$

$slope\ m=\frac{5}{2}$

substitute

$y+6=\frac{5}{2}(x+2)$

therefore

y plus 6 equals StartFraction 5 Over 2 EndFraction left-parenthesis x plus 2 right parenthesis

5 0

2 years ago

Read 2 more answers

Bob is having a party and want to order some cake. there will be 57 guest and he wants to make sure that everyone gets a slice o

Dafna1 [17]

To find out which cake is better for the price, we need to multiply the cake amounts by how many cakes of that kind we need. You need 5 20cm cakes, so we multiply 5 by the price of the 20cm cake (13.50) to get $67.50. You need 3 25cm cakes, so 3 x 18.75 = 56.25.

20cm cake: $67.50
25cm cake: $56.25

Answer: The 25cm cake is cheaper for more people.

4 0

2 years ago

A researcher says to the respondents in a poll, “Eating too many sugary foods leads to cavities. Would you rather have soda or w

mafiozo [28]

The correct answer is B. No, the wording of the question makes respondents more likely to say water, even if they may actually prefer soda at a meal.

Explanation:

One important factor when designing questions in research is to avoid any language that might influence the answers of respondents. This recommendation was not followed in the question "Eating too many sugary foods leads to cavities. Would you rather have soda or water served with your meal?" because mentioning sugary foods, which includes soda, leads to cavities will make respondents consider soda is negative and they are more likely to choose water. This implies the wording in the question influences respondents and introduces bias, which is inappropriate. Thus, the correct answer is B.

3 0

2 years ago

Which of these is another way to write the function f(x)=5x?

Alexxx [7]

Answer:

d

Step-by-step explanation:

when f(x)=5......It can also be

f(x)=1/125(625x)

every whole number over one...1(625x)=625x

also 125(1)=125 therefore (625/125)x=5x

6 0

2 years ago