3 years ago

Question 4 3 mi = How many feet

Mathematics

1 answer:

AnnyKZ [126]3 years ago

6 0

Answer: 15840

Step-by-step explanation:

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The values in the table represent an exponential function. What is the

Vesna [10]

Answer:

It is 4.

Step-by-step explanation:

9(4)=36

36(4)=144

144(4)=576

576(4)=2304

Hope this helps:)

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3 years ago

For a random sample of 50 measurements on the breaking strength of cotton threads, the mean breaking strength was found to be 21

Vikentia [17]

Answer:

205.81 to 214.19

Step-by-step explanation:

Sample size (n) = 50

Sample mean weight (X) = 210 grams

Sample standard deviation (s) = 18 grams

Confidence coefficient (Z) at 90% = 1.645

The confidence interval for the true mean breaking strength of cotton threads of this type, at a 90% confidence level, is given by:

$CI=X \pm Z*\frac{s}{\sqrt n}\\CI=210 \pm 1.645*\frac{18}{\sqrt 50}\\CI = 210 \pm 4.19\\CI =205.81\ to\ 214.19$

The confidence interval is 205.81 grams to 214.19 grams.

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4 years ago

Using coupons, you spend $135 grocery shopping. this is 75% of the total retail price of the groceries. how much would you have

Usimov [2.4K]

Let x be the total price. And you paid 75% of it which is $135.

x * 75/100 = 135
x = 180
You would have paid $180 if you had not used coupons.

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3 years ago

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sasho [114]

Answer:

Step-by-step explanation:

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3 years ago

Use the distributive property to remove the parentheses. -6(5y-2u-3)

olga55 [171]

<h2>Answer: -30y + 12u + 18 </h2>

<h3>Step-by-step explanation:</h3>

<em> by multiplying each term in the parentheses by the term outside</em>

-6(5y-2u-3) = (-6 × 5y) + (-6 × - 2u) + (-6 × -3)

= -30y + 12u + 18

7 0

3 years ago