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3 years ago

Order From Least To Greatest 0.5 , -0.55 , 0.05 , -0.505

Mathematics

1 answer:

zvonat [6]3 years ago

7 0

Not to be rude, Maddy, but that is the incorrect answer. The answer is -0.505, -0.55, -0.05, 0.5

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a warehouse store sells 5.5-ounce cans of tuna in packages of 6. a package of 6 cans costs $9.24. the store also sells 6.5-ounce

Allushta [10]

9.24 / (5.5 * 6) = 9.24 / 33 = 0.28 per oz

4.68 / (6.5 * 3) = 4.68 / 19.5 = 0.24 per oz

4.48 / (3.5 * 4) = 4.48 / 14 = 0.32 per oz

so the lowest cost is the 6.5 oz tuna in packs of 3 cans for 4.68

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3 years ago

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A design for a triangular shaped t shirt logo has dimensions 1/3 the size of the t shirt logo.the sides of the t shirt logos are

Anna007 [38]

Answer:

11 inches

Step-by-step explanation:

The logo has a perimeter of ...

6 in + 12 in + 15 in = 33 in

The design has dimensions 1/3 of these, so a perimeter that is 1/3 that perimeter value, or 11 inches.

The perimeter of the design is 11 inches.

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3 years ago

How many times does 1 and 7/8 go into at least nine but less than 10?

Gelneren [198K]

Should be four times to get in between 9 and 10

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3 years ago

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Exam question: You can buy a 57-pound bag of flour for $ 11 or you can buy a 1-pound bag for $ 0.41 Compare the per pound co

egoroff_w [7]

Answer:

Step-by-step explanation:

57 lb bag for $ 11 or 1 lb bag for $ 0.41

11/51 = 0.215 .....rounds to 0.22 ......this is the correct way...... the student messed up and divided wrong.

the large bag only charges $ 0.22 per lb, whereas, the small bag charges $ 0.41 per lb.

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4 years ago

A veterinarian wants to know if pit bulls or golden retrievers have a higher incidence of tooth decay at the age of three. The v

BigorU [14]

Answer: B) [-0.0332,0.1332]

Step-by-step explanation: <u>Confidence</u> <u>Interval</u> is an interval where we can be a percentage sure the true mean is.

The confidence interval for a difference in population proportion is calculated following these steps:

First, let's find population proportion for each population:

$p_{1}=\frac{30}{120}=0.25$

$p_{2}=\frac{32}{160}=0.2$

Second, calculate standard deviation for each proportion:

$\sigma_{1}=\sqrt{\frac{0.25(0.75)}{120} } = 0.0395$

$\sigma_{2}=\sqrt{\frac{0.2(0.8)}{160} } = 0.0316$

Now, we calculate standard error for difference:

$SE=\sqrt{\sigma_{1}^{2}+\sigma_{2}^{2}}$

$SE=\sqrt{0.0395^{2}+0.0316^{2}}$

SE = 0.0505

The z-score for a 90% CI is 1.645.

Then, confidence interval is

$p_{1}-p_{2}$ ± z-score.SE

$0.25-0.2$ ± $1.645(0.0505)$

0.05 ± 0.0831

The limits of this interval are:

inferior: 0.05 - 0.0831 = $-0.0332$

superior: 0.05 + 0.0831 = 0.1332

The 90% confidence interval for the difference in the population proportion of pit pulls and golden retrievers is $[-0.0332,0.1332]$ .

8 0

3 years ago