Answer: 20/9
Step-by-step explanation:
Turn 4 into a fraction so 4/1
When dividing, flip the second fraction over then multiply them both, so
4/1 x 5/9
That is 4 x 5 / 1 x 9
Which is 20/9
Answer:
slope m = 5/2
Step-by-step explanation:
Convert to y = mx + b format:
–5x+2y= 10
2y = 5x + 10
y = 5/2x + 5
slope m = 5/2
Using the normal distribution, the indicated probability is given as follows:
P(7 ≤ x ≤ 11) = 0.6247.
<h3>Normal Probability Distribution</h3>
The z-score of a measure X of a normally distributed variable with mean
and standard deviation
is given by:

- The z-score measures how many standard deviations the measure is above or below the mean.
- Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.
The mean and the standard deviation are given, respectively, by:

P(7 ≤ x ≤ 11) is the <u>p-value of Z when X = 11 subtracted by the p-value of Z when X = 7</u>, hence:
X = 11:

Z = (11 - 8)/2
Z = 1.5
Z = 1.5 has a p-value of 0.9332.
X = 7:

Z = (7- 8)/2
Z = -0.5
Z = -0.5 has a p-value of 0.3085.
0.9332 - 0.3085 = 0.6247.
More can be learned about the normal distribution at brainly.com/question/28096232
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The answer would be D
this is because negative exponents end up going on the other side of the fraction. additionally, the 36 and 15 can be simplified by dividing them both by 3