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Evgesh-ka [11]
3 years ago
14

Mark earned a 64 on his last science quiz. If Mark’s z-score was -2.8 and the standard deviation was 10, find the mean grade on

the quiz.
Mathematics
1 answer:
docker41 [41]3 years ago
8 0

Answer:

he score is 2.15 standard deviations above the mean.

Step-by-step explanation:

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2×(5+2)÷2 what is the answer
vlada-n [284]
The answer is 7, your welcome if this helped!

8 0
3 years ago
Read 2 more answers
I need to find the answer for "x" 2x + 3(5x - 7) =47
nordsb [41]

Answer:

The answer would be x=4.  

Step-by-step explanation: Step 1: Simplify both sides of the equation.

2x+3(5x−7)=47

2x+(3)(5x)+(3)(−7)=47(Distribute)

2x+15x+−21=47

(2x+15x)+(−21)=47(Combine Like Terms)

17x+−21=47

17x−21=47

Step 2: Add 21 to both sides.

17x−21+21=47+21

17x=68

Step 3: Divide both sides by 17.

17x/17=68

17x=68

x=4

4 0
2 years ago
13) Your parents give you a weekly allowance
Tamiku [17]

Answer:

look it up

Step-by-step explanation:

6 0
3 years ago
The first term of a geometric sequence is 4 and the multiplier, or ratio, is 2. what is the sum of the first 5 terms of the sequ
miss Akunina [59]
Hi,
There must have a bug on the site !!!


LoveYourselfFirst deleted your answer to the question 
"Hello,Answer 
=1244+8+16+32+64=124 6 minutes ago"
<span>The first term of a geometric sequence is 4 and the multiplier, or ratio, is 2. what is the sum of the first 5 terms of the sequence?
</span>
a_1=4\\&#10;a_2=2*a_1=8\\&#10;a_3=2*a_2=2^2*a_1=4*4=16\\&#10;a_4=2^3*a_1=8*4=32\\&#10;a_5=2^4*a_1=16*4=64\\&#10;&#10;4+8+16+32+64=124&#10;&#10;

<span />


5 0
3 years ago
Simplify The Expression:<br><br> 1/8h+7-3/4h<br><br> Thank you!
ivann1987 [24]

Answer:

-5/8h + 7

Step-by-step explanation:

First you need to combine like terms (1/8h and -3/4h)

So 1/8h - 3/4h is -5/8h

Then we have our 7 left over

So the answer is -5/8h + 7

4 0
3 years ago
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