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3 years ago

Can someone please help me with these two questions

Mathematics

1 answer:

Katena32 [7]3 years ago

5 0

I can't read number 15, but number 16 is C

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The diagonals of a parallelogram are perpendicular to each other. The perimeter of the parallelogram is 48 feet. Find the length

iVinArrow [24]

We know that a parallelogram has two pairs of congruent sides. If we know that the diagonals are perpendicular and the perimeter is 48 feet, we can solve is using the area of parraleogram formula: with that we get the answer of 5, and 9

3 0

3 years ago

What is the answer to 3 1/2 - 2 1/8

DerKrebs [107]

Answer:

$Exact form:\\\frac{11}{8} \\Decimal form:\\1.375\\Mixed number form:\\1\frac{3}{8}$

Step-by-step explanation:

hope this helps

4 0

3 years ago

Read 2 more answers

Suppose that you are conducting a survey on how many students have blue eyes in each first period classroom at Garfield Middle s

rusak2 [61]

Answer:

The correct statement is the first one: The number of blue-eyed students in Mr. Garcia's class is 2 standard deviations to the right of the mean

Explanation:

To calculate how many standard deviations a particular value in a group is from the mean, you can use the z-score:

$z-score=(x-\mu )/\sigma$

Where:

$z-score$ is the number of standard deviations the value of x is from the mean

$\mu$ is the mean

$\sigma$ is the standard deviation

Substitute in the formula:

$z-score=(10-6)/2=4/2=2$

Which means that the number of blue-eyed students in Mr. Garcia's class is 2 standard deviations above the mean.

Above the mean is the same that to the right of the mean, because the in the normal standard probability graph the central value is Z = 0 (the z-score of the mean value is 0), the positive values are to the right of the central value, and the negative values are to the left of the central value.

Therefore, the correct statement is the first one: The number of blue-eyed students in Mr. Garcia's class is 2 standard deviations to the right of the mean,

4 0

3 years ago

Write the equation of the line that passes through the points (-9,9)(−9,9) and (8,-2)(8,−2). Put your answer in fully reduced po

Sonbull [250]

Debby i the answe let’s goo huh

7 0

2 years ago

diana bnrought a car for 5,000 and plan to sell it to make a 20% profit .what should she sell it for to make the profit she desi

Vikentia [17]

$6,000

5,000•1.2=$6,000

4 0

3 years ago