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nydimaria [60]
3 years ago
7

Helppp please!!!!!!!

Mathematics
1 answer:
konstantin123 [22]3 years ago
4 0
Can't tell I'd this is what you want but the answer to the angel is 251.

the way you find this is by subtracting 109 out of 360.
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skad [1K]
13=3x-x/2 13=5x/2 26=5x X=5.2
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Pleaseeeee helppppp!!!
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3 years ago
36^x-2=6 solve for x
Lina20 [59]

Answer:

x = \frac{in (8)}{in (36)}  if you consider doing decimal form x = 0.58027921. . .

Step-by-step explanation:

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3 0
3 years ago
Among freshman at a certain university, scores on the Math SAT followed the normal curve, with an average of 550 and an SD of 10
lina2011 [118]

Answer:

a) 6.68th percentile

b) 617.5 points

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 550, \sigma = 100

a) A student who scored 400 on the Math SAT was at the ______ th percentile of the score distribution.

Z = \frac{X - \mu}{\sigma}

Z = \frac{400 - 550}{100}

Z = -1.5

Z = -1.5 has a pvalue of 0.0668

So this student is in the 6.68th percentile.

b) To be at the 75th percentile of the distribution, a student needed a score of about ______ points on the Math SAT.

He needs a score of X when Z has a pvalue of 0.75. So X when Z = 0.675.

Z = \frac{X - \mu}{\sigma}

0.675 = \frac{X - 550}{100}

X - 550 = 0.675*100

X = 617.5

6 0
3 years ago
QUICK QUICK PLEASE! 1 MINUTE
Dima020 [189]

Step-by-step explanation:

Total tomato plants = 24 + 30 = 54

Total green bean plants = 18 + 25 = 43

The ratio of tomato plants to green bean plants

=  \frac{54}{43}  = 54 \:  :  \: 43

4 0
3 years ago
Read 2 more answers
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