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2 years ago

11 A freezer was set at -4.5°F then lost power for 2 hours. In that

Mathematics

1 answer:

sergey [27]2 years ago

6 0

Answer:

-0.8⁰F

You subtract 3.7 from 4.5 and you get 0.8 and you add a negative sign because -4.5 is bigger than positive 3.7

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Which of the following number sentences is true?<br> A -9=9<br> B-9=-(9)<br> C 9=(-9)<br> D 9=-(-9)

kondaur [170]

Answer:

A and D are the true number sentences

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2 years ago

What is 232and1/4-129and7/8?

Elanso [62]

$232 \frac{1}{4} - 129 \frac{7}{8}$
The answer is: $102 \frac{3}{8}$

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2 years ago

Nolan polled the 2 fastest swimmers on the swim team.

torisob [31]

Here's link to the answer:

cutt.us/tWGpn

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2 years ago

Refer to the technology output given to the right that results from measured hemoglobin levels (g/dL) in 100 randomly selected a

charle [14.2K]

Answer:

Step-by-step explanation:

Confidence interval in less than symbol expressed as

$\bar{x} - E < \mu < \bar{x} + E
$

Where $\bar{x}$ is sample mean and $E$ is margin of error.

$13.03 < \mu 13.42
$

The given t interval is $(13.032 , 13.418 )
$

That is $\bar{x} - E = 13.032$ and $\bar{x} + E = 13.418$

Solve these two equation by adding together.

$2 \bar{x} = 13.032 + 13.418
\\\\\bar{x} = 13.225$

Solve this value of \bar{x} in equation $\bar{x} - E = 13.032$ and solve for $E$

$13.225 - E = 13.032
\\\\E = 0.193
$

Best point estimate of $\mu = \bar{x} = 13.225
$

Best point estimate of margin of error = 0.193

Since sample size = 100 which is sufficiently large (Greater than 30) , it is no need to confirm that

sample data appear to be form a population with normal distribution.

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2 years ago

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satela [25.4K]

$\huge\text{Hey there!}$

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$\bold{Well, based\ on\ your\ GUIDE\ we\ can do\ PROCESS\ OF\ ELIMINATION.}\\\\\bold{REMEMBER: < or > will\ have\ a\ O P E N E D\ circle.\ This\ throws\ A\ \& C}\\\bold{as\ your\ results\ because\ they\ are\ CLOSED\ CIRCLES\ and\ we\ are}\\\bold{looking\ for\ O P E N E D\ circles. This\ leads\ B\ & D\ as\ your\ POSSIBLE}\\\bold{result}$