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4 years ago

Calculate a z-score of 80

Mathematics

2 answers:

Irina-Kira [14]4 years ago

5 0

Zero with aside of 7 plus 3 and 4

lyudmila [28]4 years ago

5 0

Answer: 1.282

Step-by-step explanation: To find the Z-score, you subtract class mean (50 percent) from the individual score (80 percent) and divide the result by the standard deviation. Hope this helps

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PLEASE HELP<br> 20 points look at picture!

irina1246 [14]

Answer:

Step-by-step explanation:

I'm sure it's right hope this helps

7 0

3 years ago

Quadrilateral RPQS is a rectangle. Label the missing measures.

Taya2010 [7]

Answer:

Part 1) $PR=9\ units$

Part 2) $PQ=12\ units$

Part 3) $PS=15\ units$

part 4) $QR=15\ units$

Part 5) $RT=7.5\ units$

Step-by-step explanation:

we know that

In a rectangle opposite sides are parallel and congruent

The measure of each interior angle is 90 degrees

The diagonals are congruent and bisect each other

step 1

Find the length of side PR

we know that

$PR=QS$ ----> by opposite sides

we have

$QS=9\ units$

therefore

$PR=9\ units$

step 2

Find the length of side PQ

we know that

$PQ=RS$ ----> by opposite sides

we have

$RS=12\ units$

therefore

$PQ=12\ units$

step 3

Find the length of diagonal PS

we know that

$PS=2PT$ ---> the diagonals bisect each other

we have

$PT=7.5\ units$ ---> given problem

therefore

$PS=2(7.5)=15\ units$

step 4

Find the length of diagonal QR

we know that

$QR=PS$ ---> the diagonals are congruent

we have

$PS=15\ units$

therefore

$QR=15\ units$

step 5

Find the length of RT

we know that

$QR=2RT$ ---> the diagonals bisect each other

we have

$QR=15\ units$

substitute

$15=2RT\\RT=7.5\ units$

7 0

3 years ago

Part C

ehidna [41]

Answer:

Dec 7, 2020 — Calculate the ratio of the lengths of the two line segments formed on each transversal. You will have two sets of calculations. Round your ... sets of calculations. Round your answers to the hundredths place. What do you notice about the ratios of the lengths for each transversal? How do they compare? 1.

Step-by-step explanation:

brainlist please or else ill kill you understand

4 0

3 years ago

What is credit?

Natalka [10]

Answer:

Step-by-step explanation:

credit is when you receive something

i think of it like if you give someone 'extra credit' it is like a bonus score

hope this helps:

if this is wrong plz comment and i will edit me answer thanks :)

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4 years ago

A tennis supply store pays a wholesaler $40 for a tennis racquet and marks it up by 60%.

DENIUS [597]

Answer:

$64

Step-by-step explanation:

3 0

3 years ago