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
bixtya [17]
3 years ago
8

16. Show your work and check your answer(s). √2x-1+7=4

Mathematics
1 answer:
shtirl [24]3 years ago
5 0

Answer

X=25

Step-by-step explanation:

You might be interested in
A student wrote and simplified an expression for the perimeter of the rectangle. (Using the picture provided.)
Nookie1986 [14]

Answer:

It’s 10n+12

They put the 2 n’s as an exponent

Step-by-step explanation:

3 0
3 years ago
Identify the type of function <br> f(x) =2x+1
Xelga [282]

Answer:

slope intercept form

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Mrs. Kitchell has graded 12 out of 48 papers so far. What percent of the papers has Mrs. Kitchell graded so far?
ioda
1/4 of the work so 25%!
7 0
2 years ago
Read 2 more answers
Let z denote a random variable that has a standard normal distribution. Determine each of the probabilities below. (Round all an
Gelneren [198K]

Answer:

(a) P (<em>Z</em> < 2.36) = 0.9909                    (b) P (<em>Z</em> > 2.36) = 0.0091

(c) P (<em>Z</em> < -1.22) = 0.1112                      (d) P (1.13 < <em>Z</em> > 3.35)  = 0.1288

(e) P (-0.77< <em>Z</em> > -0.55)  = 0.0705       (f) P (<em>Z</em> > 3) = 0.0014

(g) P (<em>Z</em> > -3.28) = 0.9995                   (h) P (<em>Z</em> < 4.98) = 0.9999.

Step-by-step explanation:

Let us consider a random variable, X \sim N (\mu, \sigma^{2}), then Z=\frac{X-\mu}{\sigma}, is a standard normal variate with mean, E (<em>Z</em>) = 0 and Var (<em>Z</em>) = 1. That is, Z \sim N (0, 1).

In statistics, a standardized score is the number of standard deviations an observation or data point is above the mean.  The <em>z</em>-scores are standardized scores.

The distribution of these <em>z</em>-scores is known as the standard normal distribution.

(a)

Compute the value of P (<em>Z</em> < 2.36) as follows:

P (<em>Z</em> < 2.36) = 0.99086

                   ≈ 0.9909

Thus, the value of P (<em>Z</em> < 2.36) is 0.9909.

(b)

Compute the value of P (<em>Z</em> > 2.36) as follows:

P (<em>Z</em> > 2.36) = 1 - P (<em>Z</em> < 2.36)

                   = 1 - 0.99086

                   = 0.00914

                   ≈ 0.0091

Thus, the value of P (<em>Z</em> > 2.36) is 0.0091.

(c)

Compute the value of P (<em>Z</em> < -1.22) as follows:

P (<em>Z</em> < -1.22) = 0.11123

                   ≈ 0.1112

Thus, the value of P (<em>Z</em> < -1.22) is 0.1112.

(d)

Compute the value of P (1.13 < <em>Z</em> > 3.35) as follows:

P (1.13 < <em>Z</em> > 3.35) = P (<em>Z</em> < 3.35) - P (<em>Z</em> < 1.13)

                            = 0.99960 - 0.87076

                            = 0.12884

                            ≈ 0.1288

Thus, the value of P (1.13 < <em>Z</em> > 3.35)  is 0.1288.

(e)

Compute the value of P (-0.77< <em>Z</em> > -0.55) as follows:

P (-0.77< <em>Z</em> > -0.55) = P (<em>Z</em> < -0.55) - P (<em>Z</em> < -0.77)

                                = 0.29116 - 0.22065

                                = 0.07051

                                ≈ 0.0705

Thus, the value of P (-0.77< <em>Z</em> > -0.55)  is 0.0705.

(f)

Compute the value of P (<em>Z</em> > 3) as follows:

P (<em>Z</em> > 3) = 1 - P (<em>Z</em> < 3)

             = 1 - 0.99865

             = 0.00135

             ≈ 0.0014

Thus, the value of P (<em>Z</em> > 3) is 0.0014.

(g)

Compute the value of P (<em>Z</em> > -3.28) as follows:

P (<em>Z</em> > -3.28) = P (<em>Z</em> < 3.28)

                    = 0.99948

                    ≈ 0.9995

Thus, the value of P (<em>Z</em> > -3.28) is 0.9995.

(h)

Compute the value of P (<em>Z</em> < 4.98) as follows:

P (<em>Z</em> < 4.98) = 0.99999

                   ≈ 0.9999

Thus, the value of P (<em>Z</em> < 4.98) is 0.9999.

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

3 0
3 years ago
Need help on 11,12,13,14,15
const2013 [10]

Not sure what 14 is asking?

15 would be 16.

The square root of width squared plus length squared equals the diagonal.

So if you just change the order of the equation you can find the length.

Double check it by doing it both ways to see if your answer is right.

7 0
2 years ago
Other questions:
  • Jane will draw one card from the regular deck of 52 cards. In how many ways can she choose a jack or a black card?
    9·2 answers
  • Which fraction is equivalent to 5/7?
    14·2 answers
  • PLEASE ANSWER ASAP FOR BRAINESLT!!!!!!!!!!!!!!!!!!
    5·1 answer
  • A number has the digits 6, 2, 9 to the nearest 100, the number rounds to 600 what is the number
    11·1 answer
  • Chad is making an orange smoothie. The recipe calls for three part frozen yogurt to five part orange juice. How many ounces of f
    6·1 answer
  • Will marks as brain Uh I don’t have to watch ads for like 40 questions and I don’t know if you just get them for answering quest
    13·1 answer
  • A room is 15 feet long and 12 feet wide. What are the length and width of the room in yards?
    12·1 answer
  • Simplify the following expression by combining like terms. Select the most simplified expression: m + 2m + 3m + m +3m
    7·1 answer
  • Can someone help with this
    8·2 answers
  • en un circo para alimentar a 3 tigres se necesitan 40kg de carne por dia cuantos kg de carne diaria necesitaran para alimentar a
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!