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frozen [14]
2 years ago
11

Evaluate y = -4(5)* for x = 2

Mathematics
1 answer:
lakkis [162]2 years ago
4 0

Answer: Y= -10

Step-by-step explanation:

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What was the purpose of the Pendleton Act?
Amiraneli [1.4K]

The act was signed into law by President Chester A. Arthur.

7 0
3 years ago
The class scores of a history test have a normal distribution with a mean Mu = 79 and a standard deviation Sigma = 7. If Opal’s
storchak [24]

The value of z score for the history class test of Opal’s test score is negative one (-1).

<h3>What is normally distributed data?</h3>

Normally distributed data is the distribution of probability which is symmetric about the mean.

The mean of the data is the average value of the given data. The standard deviation of the data is the half of the difference of the highest value and mean of the data set.

The z score for the normal distributed data can be given as,

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

The mean value of the scores of history class is,

\mu=79

The standard deviation value of the scores of history class is,

\sigma=7

Here, the test score of the Opal’s is 72. Thus the z score for her test score can be given as,

z=\dfrac{72-79}{7}\\z=-1

Hence, the value of z score for the history class test of Opal’s test score is negative one (-1).

Learn more about the normally distributed data here;

brainly.com/question/6587992

6 0
2 years ago
Savanna have 40 iris blooms last year this year she had 50% more iris blooms how many more iris blooms did savanna have this yea
Marina CMI [18]

Answer:

6

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
The sun shines at a 30° angle to the ground. To the nearest inch, how long is the shadow cast by a 72-in. tall fence post?
tensa zangetsu [6.8K]

The length of the shadow is 124.7 in

<u>Explanation:</u>

<u />

Given:

Angle, θ = 30°

Height of the fence,  h = 72 in

Length of the shadow, l = ?

Given:

tan 30° = \frac{perpendicular}{base}  = \frac{height of the fence}{length of the shadow}

\frac{1}{\sqrt{3} } = \frac{72}{l} \\\\l = 72\sqrt{3} \\\\l = 124.7 in

Therefore, the length of the shadow is 124.7 in

5 0
3 years ago
Can someone please help me on this one?
tensa zangetsu [6.8K]
8 is the correct answer
7 0
3 years ago
Read 2 more answers
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