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3 years ago

Factor the equation x ^2-2x + 5 = 0 justify your answer

Mathematics

1 answer:

Sidana [21]3 years ago

7 0

X = 1 + ^6, 1 - ^6. Is the answer to the question.

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The cost c (in dollars)of making n feet of cabinet is represented by c = 18n + 45. how many feet of cabinet are made when the co

user100 [1]

To solve this, replace the c with 441 and solve for n:
$441=18n+45$
$396=18n$
$22=n$

6 0

3 years ago

In an effort to improve scores on college-entrance exams, the principal at a large high school chooses 35 students

denpristay [2]

Using the t-distribution, it is found that the test statistic for the hypotheses test is given by:

$t = \frac{-1.75 - 0}{\frac{7.12}{\sqrt{35}}}$

<h3>What are the hypotheses tested?</h3>

At the null hypotheses, it i tested if the mean difference remains the same, that is:

$H_0: \mu = 0$

At the alternative hypotheses, it is tested if it has decreased, hence:

$H_a: \mu < 0$ .

<h3>What is the test statistic?</h3>

The test statistic is given by:

$t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}$

The parameters are:

$\overline{x}$ is the sample mean.

$\mu$ is the value tested at the null hypothesis.

s is the standard deviation of the sample.

n is the sample size.

The parameters are given as follows:

$\overline{x} = -1.75, s = 7.12, n = 35$ .

Hence the test statistic is given by:

$t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}$

$t = \frac{-1.75 - 0}{\frac{7.12}{\sqrt{35}}}$

More can be learned about the t-distribution at brainly.com/question/16162795

#SPJ1

5 0

2 years ago

Marlowe loves to draw. She wants to refine her skills and start taking drawing lessons at a local art studio. The table shows th

Bogdan [553]

Sorry im a little late but here's how i did it.

Hope this helps! :)

3 0

3 years ago

What is the name of an equivalent name for 96

Aleksandr-060686 [28]

For this case we have the following number:
96
We can rewrite this number in an equivalent way.
For example, we can use words to rewrite the number.
We have then:
96 = ninety six
Answer:
the name of an equivalent name for 96 is:
Ninety-six

8 0

3 years ago

Read 2 more answers

The sum of two numbers is 62 the smaller number is 6 less than the larer number what are the numbers

muminat

X= larger number
x-6= smaller number

x + (x - 6)= 62
combine like terms

2x - 6= 62
add 6 to both sides

2x= 68
divide both sides by 2

x= 34 larger number

SMALLER NUMBER
x - 6= 34 - 6= 28

ANSWER: The smaller number is 28 and the larger number is 34.

Hope this helps! :)

5 0

3 years ago