9(x + 3) + 15x
9x + 27 + 15x ...combine like terms
24x + 27 <==
A = (1/2) bh for height h
2A = bh
first multiply both sides by 2 then divide both sides by b
Area of triangle = (1/2)bh
A = (1/2)bh
2A = bh
h = 2A/b
110 = 1/2(11)h
110 = 5.5h
110/5.5 = 20
The answer Is H = 20
Hope this helps (:
Answer:
Step-by-step explanation:
You cant do a square root for a negative number.
Answer:
The proportion of infants with birth weights between 125 oz and 140 oz is 0.1359 = 13.59%.
Step-by-step explanation:
When the distribution is normal, we use the z-score formula.
In a set with mean
and standard deviation
, the zscore of a measure X is given by:

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 question, we have that:

The proportion of infants with birth weights between 125 oz and 140 oz is
This is the pvalue of Z when X = 140 subtracted by the pvalue of Z when X = 125. So
X = 140



has a pvalue of 0.9772
X = 125



has a pvalue of 0.8413
0.9772 - 0.8413 = 0.1359
The proportion of infants with birth weights between 125 oz and 140 oz is 0.1359 = 13.59%.
8x+6=54
-6 -6
8x=48
8x /8=48/8
x=6 the bracelets were $6 a piece