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Sliva [168]
3 years ago
12

(2x+23) simplify that

Mathematics
1 answer:
nikklg [1K]3 years ago
7 0
2x + 23 there isnt a big difference
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The average mark of candidates in an aptitude test was 128.5 with a standard deviation of 8.2.Three scores extracted from the te
Luba_88 [7]

Answer:

102

Step-by-step explanation:

We have the mean (m) 128.5 and the standard deviation (sd) 8.2, we must calculate the value of z for each one and determine whether or not it is an outlier:

z = (x - m) / sd

In the first case x = 148:

z = (148 - 128.5) /8.2

z = 2.37

In the second case x = 102:

z = (102 - 128.5) /8.2

z = -3.23

In the first case x = 152:

z = (152 - 128.5) /8.2

z = 2.86

The value of this is usually between -3 and 3, therefore when x is 102 it goes outside the range of the value of z, which means that this is the outlier.

3 0
3 years ago
Pls help I will mark brainlist if correct !! :)
Zielflug [23.3K]

Answer:

the first one is correct

Step-by-step explanation:

mark brainliest please

4 0
3 years ago
Read 2 more answers
Which excel cell entry will calculate the square root of 165? =sqrt[165] sqrt(165) sqr(165) =sqrt(165)?
svetoff [14.1K]
Excel expects a + or = sign before math calculations.
Also, for arguments of functions (such as sqrt), parentheses "()" are used.  Brackets "[]" are not acceptable.
That leaves only one remaining option.
4 0
3 years ago
HELPPPPP HELPPPPP HELPPPP!!!!! AHHHHHHHHHHHHHHJJJJSJDJDJ
erica [24]

Answer:

QRS equals to 91

Step-by-step explanation:

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8 0
3 years ago
PLEASE HELP ME ASAP!!!!<br> The top says "Coffee cost $18.96 for 3 pounds."
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3 years ago
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