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rewona [7]
3 years ago
8

A student has earned a 92%, 88%, 65%, 79%, and 99% on her unit tests. What is the student's mean unit test score? Enter your ans

wer in the box. mean = %
Mathematics
2 answers:
Feliz [49]3 years ago
6 0
92+88+65+79+99=423
423/5=84.6%
5 is from the amount of percentages given
ZanzabumX [31]3 years ago
6 0

Evet hocam proje konularını da bir insan değilim ki bir şey olmaz sen de bir insan değilim ki
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From a group of 8 people, including George and Nina, 3 people are to be selected at random to work on a certain project. What is
cestrela7 [59]

Answer:\frac{15}{56}

Step-by-step explanation:

We have to select george but not nina with two other people

No. of ways  selecting 2 two people knowing Geroge will be the third one is

^6C_2 (beacuse we have to exclude Nina)

And total no of ways of selecting 3 people out of 8 people is ^8C_3

Therefore the required Probability is \frac{^6C_{2}}{^8C_{3}}    

=\frac{15}{56}

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3 years ago
F(1)=-3 <br>f(n)=-5*f(n-1)-7<br>f(2)=?<br>pls help lol. ​
Oksanka [162]

Answer:

f(2)=5

Step-by-step explanation:

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8 0
3 years ago
Read 2 more answers
I don't know how to do this :(
Lemur [1.5K]
Hello.

e is a mathematical constant, and it's like pi, it's irrational. It's approximately equal to 2.71828....

So, e^{\frac{3}{2}} = 4.4816... 
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8 0
3 years ago
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Write the phrase as a rate in simplest form. $406 for 38 pieces
Anna71 [15]

Answer:

Rate will be $10.68/-

Step-by-step explanation:

For 38 pieces we have price $406

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6 0
3 years ago
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4x + y =3<br> x + y - z = 9<br> 2x + 2y + z = 0
uranmaximum [27]

Answer:

[0, 3, -6]

Step-by-step explanation:

{4x + y = 3

{x + y - z = 9 ←

{2x + 2y + z = 0 ←

{4x + y = 3

{3x + 3y = 9 >> Combined equation

−¾[4x + y = 3]

{−3x - ¾y = −2¼ >> New Equation

{3x + 3y = 9

_________

2¼y = 6¾

___ ___

2¼ 2¼

y = 3 [Plug this back into all three equations to get the z-value of −6, and the x-value of 0]; 0 = x; -6 = z

I am joyous to assist you anytime.

4 0
3 years ago
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