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Alecsey [184]
3 years ago
7

5x to the second power-13x +6guys answer only

Mathematics
1 answer:
Thepotemich [5.8K]3 years ago
6 0

Answer:

-138

Step-by-step explanation:

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Answer two questions about Equations A and B:
DiKsa [7]

Step-by-step explanation:

3x+6=18

3x=18-6

3x=12

x=4

3 0
3 years ago
Given h(x) = 4x2 + 3x – 8, what is the value of h(–9) ?
fenix001 [56]

Answer:

h(-9) = -107

Step-by-step explanation:

h(-9) = 4(-9)2 + 3(-9) - 8 = -107

6 0
3 years ago
Assume the random variable X is normally distributed with mean mu equals 50 and standard deviation sigma equals 7. Compute the p
drek231 [11]

Answer:

The probability that <em>X</em> is less than 42 is 0.1271.

Step-by-step explanation:

The random variable <em>X </em>follows a Normal distribution.

The mean and standard deviation are:

E (X) = <em>μ</em> = 50.

SD (X) = <em>σ</em> = 7.

A normal distribution is continuous probability distribution.

The Normal probability distribution with mean µ and standard deviation σ is given by,

f_{X}(\mu, \sigma)=\frac{1}{\sigma\sqrt{2\pi}}e^{-(x-\mu)^{2}/2\sigma^{2}};\ -\infty

To compute the probability of a Normal random variable we first standardize the raw score.

The raw scores are standardized using the formula:

z=\frac{x-\mu}{\sigma}

These standardized scores are known as <em>z</em>-scores and they follow normal distribution with mean 0 and standard deviation 1.

Compute the probability of (X < 42) as follows:

P(X

*Use a <em>z</em>-table for the probability.

Thus, the probability that <em>X</em> is less than 42 is 0.1271.

The normal curve is shown below.

6 0
3 years ago
What is the measure of the missing angle?<br> 280<br> 78°
nlexa [21]

Answer:

2 degrees

Step-by-step explanation:

There is 360 degrees in a circle, triangle, square, and a ton of other shapes, and 280 plus 78 gives you 358 degrees. 360 - 358 equals 2 degrees.

Hope this helps!

7 0
3 years ago
PLS ANSWER ASAP! Enter the equation of the line in the form y=mx Where m is slope
AURORKA [14]

Answer:

Well technically its inf due to the arrow, there  are no points showing where to start from and where to end

the way you do it it you just count the amount of units it goes up, in this case for every square its going up 5 units, once you get that number you put that on top of your fraction, then you go over on the x axis till you hit your line (x axis is going by 10 every time). This would be your number on the bottom of the fraction.

Ill do what I can see here

40                                1

----      Simplified to    ----

80                                2

Step-by-step explanation:

Obviously this isnt the answer but thats how you get it, hope this helps

4 0
2 years ago
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