1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Andrei [34K]
2 years ago
15

X- 18 = 0 Number of real number solutions

Mathematics
2 answers:
Neko [114]2 years ago
5 0

Answer:

X= 18

Step-by-step explanation:

18-18=0

x=18

sammy [17]2 years ago
5 0

Answer:

\displaystyle One\:Solution

Step-by-step explanation:

x - 18 = 0

\displaystyle 18 = x

I am joyous to assist you anytime.

You might be interested in
Is Catholic Schools bad?​
timurjin [86]

Answer:

Not really。。

Step-by-step explanation:

this school had remained excellent。students grduating from these school have higher ACT scores

5 0
2 years ago
Julie Meyer is the manger for Ace trucking company.during December she worked 165 hours earning 27 an hour.what was her straight
OlgaM077 [116]
The answer is 4,455. 27×165=4,455.
8 0
3 years ago
Read 2 more answers
A university financial aid office polled a random sample of 670 male undergraduate students and 617 female undergraduate student
ahrayia [7]

Answer:

The 90% confidence interval for the difference between the proportions of male and female students who were employed during the summer is (0.01, 0.1012).

Step-by-step explanation:

Before building the confidence interval, we need to understand the central limit theorem and subtraction of normal variables.

Central Limit Theorem

The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean \mu = p and standard deviation s = \sqrt{\frac{p(1-p)}{n}}

Subtraction between normal variables:

When two normal variables are subtracted, the mean is the difference of the means, while the standard deviation is the square root of the sum of the variances.

Male undergraduates:

670, 388 were employed. So

p_M = \frac{388}{670} = 0.5791

s_M = \sqrt{\frac{0.5791*0.4209}{670}} = 0.0191

Female undergraduates:

Of 617, 323 were employed. So

p_F = \frac{323}{617} = 0.5235

s_F = \sqrt{\frac{0.5235*0.4765}{617}} = 0.0201

Distribution of the difference:

p = p_M - p_F = 0.5791 - 0.5235 = 0.0556

s = sqrt{s_M^2+s_F^2} = \sqrt{0.0201^2 + 0.0191^2} = 0.0277

Confidence interval:

The confidence interval is given by:

p \pm zs

In which

z is the z-score that has a p-value of 1 - \frac{\alpha}{2}.

90% confidence level

So \alpha = 0.1, z is the value of Z that has a p-value of 1 - \frac{0.1}{2} = 0.95, so Z = 1.645.

The lower bound of the interval is:

p - zs = 0.0556 - 1.645*0.0277 = 0.01

The upper bound of the interval is:

p + zs = 0.0556 + 1.645*0.0277 = 0.1012

The 90% confidence interval for the difference between the proportions of male and female students who were employed during the summer is (0.01, 0.1012).

5 0
3 years ago
18)
insens350 [35]

Answer:

B) 28 cm^2

Step-by-step explanation:

First, find the perimeter 5*4=20

A= ½ 2.75(20) = 27.5

(round to the nearest whole number)

Got it right on the test

7 0
3 years ago
10 ,15 as a simple form
NikAS [45]

10,15 in the simplest form is 2,3

5 0
3 years ago
Other questions:
  • Frosted furniture makes dining room furniture. A buffet requires 30 hours for construction and 10 hours for finishing. A chair r
    7·1 answer
  • Explain why numbers with a 5 in ones place or not prime numbers
    13·1 answer
  • You randomly select one card from 52 -card deck fend the probability of selecting an ace or a 7
    5·1 answer
  • A farmer is tracking the amount of wheat his land is yielding each year. He finds that the function f(x) = −x2 + 20x + 75 models
    8·2 answers
  • Use the above diagram to solve for y. You will NEED to show and discuss the similar triangles in the diagram. You will need to s
    10·1 answer
  • Which sign explains the relationship between m∠1 and m∠2 in the diagram?
    12·1 answer
  • Four boxes were mailed and weighted at the post office and the first one is 8.25pounds the second one weights 8.200 and the he t
    14·2 answers
  • Find the probability that when a couple has four ​children, at least one of them is a girl. ​(Assume that boys and girls are equ
    5·1 answer
  • Um if you good at math please help me and i will give you brainliest
    7·2 answers
  • Find the value of x in the figure shown
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!