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olganol [36]
2 years ago
5

What is the equivalent for a 6.5 x * x + 5 .5 x + 1

Mathematics
1 answer:
nadezda [96]2 years ago
8 0

Answer:

6.5x^2 + 5.5x + 1

Step-by-step explanation:

6.5 x * x + 5 .5 x + 1 can be re-written as 6.5x^2 + 5.5x + 1, or as:

65x^2 + 55 + 10

-------------------------

          10

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Can someone help me on this plz and thanks
nirvana33 [79]

Answer:

- 7/4

Step-by-step explanation:

y1 - y2 over x1 - x2 with the points (-3,4) and (1,-3)

-3 - 4 over 1 - (-3) --> -7/ 4

4 0
2 years ago
Read 2 more answers
Answers need to be fractions, if they are not whole numbers. No decimals
klemol [59]

The Slope of lines parallel to line is 1/2 and the Slope of lines perpendicular  to line is -2.

<h3>What is the equation of a straight line ?</h3>

An equation that can be written in the form of y = mx+c

where m is the slope of the line

and c is the intercept on y axis

The equation given in the question is

y=1/2x−7

in this the slope = 1/2

Intercept = -7

For parallel Lines

For a parallel line , the slope of the line is same

and is given by  m = 1/2

For a perpendicular line

Slope will be equal to

-1/m

here -1/m = -2

Therefore the slope for perpendicular line is -2.

To know more about Straight Line equation

brainly.com/question/959487

#SPJ1

7 0
2 years ago
Suppose a marketing company wants to determine the current proportion of customers who click on ads on their smartphones. It was
andrezito [222]

Answer:

The 92% confidence interval for the true proportion of customers who click on ads on their smartphones is (0.3336, 0.5064).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

For this problem, we have that:

n = 100, p = 0.42

92% confidence level

So \alpha = 0.08, z is the value of Z that has a pvalue of 1 - \frac{0.08}{2} = 0.96, so Z = 1.75.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.42 - 1.75\sqrt{\frac{0.42*0.58}{100}} = 0.3336

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.42 - 1.75\sqrt{\frac{0.42*0.58}{100}} = 0.5064

The 92% confidence interval for the true proportion of customers who click on ads on their smartphones is (0.3336, 0.5064).

4 0
3 years ago
On a Saturday, Saul can cut 4 lawns in 6 hours. If Mitch can mow lawns at the same rate, how long will it take him to mow 9 lawn
Charra [1.4K]
Mowing 4 lawns in 6 hours gives a mowing rate of 6/4 = 1.5 hours per lawn.
To mow 9 lawns, you need 1.5*9 = 13.5 hours.

The answer is B.
6 0
3 years ago
Read 2 more answers
I'm not sure how to solve this. please help​
zepelin [54]

Answer:

The awnser is 2 and 3!!!!!!

8 0
2 years ago
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