3 years ago

List the elements in each set.

Mathematics

1 answer:

atroni [7]3 years ago

8 0

Answer:

Step-by-step explanation:

1+1=2

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A) A grocery store sells bags of oranges in two different sizes. The six pound bag is $7. The eight pound bag is $9. Which cost

yawa3891 [41]

A) The eight pound bag costs less if you divide 7 by 6 you get $1.17 per pound. If you divide 9 by 8 you get $1.13.

B) 1.17 dollars per pound

(Everything above is rounded so do the math to find the more accurate numbers)

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3 years ago

What’s the difference between 5 and 4.73?

natka813 [3]

Answer:

0.27

Step-by-step explanation:

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3 years ago

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Given the function f(x) = -5x^2 + 2x + 9 find f(1) and f(2)

tigry1 [53]

Answer:

Step-by-step explanation:

f(x) = -5 x^2 + 2 x + 9

f(1)=-5(1)^2 +2(1) +9 = 6

similarly

f(2)=-5(2)^2 +2(2) +9 = -7

if its help-full then hit the stars and brain-list it

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3 years ago

A random sample of 10 chocolate energy bars of a certain brand has, on average, 230 calories per bar, with a standard deviation

Troyanec [42]

Answer:

The confidence interval for the true mean calorie content is

$215$

Step-by-step explanation:

In this problem we know the mean and standard deviation fo the sample, so we can compute the CI like this:

$\bar{x}-t*s/\sqrt{n}< \mu$

We need to determine t for 10-1=9 degrees of freedom and 99% confidence level. We look up in the t-table and the value for t is 3.2498.

Then we can calculate the limits of the CI:

$\bar{x}-t*s/\sqrt{n}< \mu$

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4 years ago

Veseljchak [2.6K]

Answer:

c=45 +679 =6y=8h

Step-by-step explanation:

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3 years ago