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
Delicious77 [7]
3 years ago
14

These two are the problems I need help with

Mathematics
1 answer:
ad-work [718]3 years ago
4 0
Y=4 and I'm not sure on the second one sorry
You might be interested in
Substituting y = –2 back into the first equation gives
Elenna [48]

Answer: idk the first equation

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
8x-1&lt;15<br> NO one will help plss someone hellpppp
romanna [79]

Answer:

x < 2

Step-by-step explanation:

8x -1 < 15

8x -1 (+ 1) < 15 (+ 1)

8x < 16

\frac{8x}{8} < \frac{16}{8}

x < 2

7 0
3 years ago
Read 2 more answers
Trials in an experiment with a polygraph include results that include cases of wrong results and cases of correct results. Use a
hram777 [196]

Answer and Step-by-step explanation:

This is a complete question

Trials in an experiment with a polygraph include 97 results that include 23 cases of wrong results and 74 cases of correct results. Use a 0.01 significance level to test the claim that such polygraph results are correct less than 80​% of the time. Identify the null​hypothesis, alternative​ hypothesis, test​ statistic, P-value, conclusion about the null​ hypothesis, and final conclusion that addresses the original claim. Use the​ P-value method. Use the normal distribution as an approximation of the binomial distribution.

The computation is shown below:

The null and alternative hypothesis is

H_0 : p = 0.80

Ha : p < 0.80

\hat p = \frac{x}{ n} \\\\= \frac{74}{97}

= 0.7629

Now Test statistic = z

= \hat p - P0 / [\sqrtP0 \times (1 - P0 ) / n]

= 0.7629 - 0.80 / [\sqrt(0.80 \times 0.20) / 97]

= -0.91

Now

P-value = 0.1804

\alpha = 0.01

P-value > \alpha

So, it is Fail to reject the null hypothesis.

There is ample evidence to demonstrate that less than 80 percent of the time reports that these polygraph findings are accurate.

5 0
3 years ago
You are ordering a hamburger and can get up to 6 toppings, but each topping can only be used once. You tell the cashier to surpr
Norma-Jean [14]
I think it will be 18% chance
6 0
3 years ago
Subtract. – 0.41 – 8.91<br> a. –9.32<br> b. –8.50<br> c. 8.50<br> d. 9.32
Free_Kalibri [48]
The answer is a -9.32
5 0
3 years ago
Other questions:
  • If f(x, y) = esin(x + y) and D = [−π, π] × [−π, π], show the following. 1 e ≤ 1 4π2 D f(x, y) dA ≤ e The area of the region D is
    9·1 answer
  • How to calculate percentage increase
    10·1 answer
  • What is the area of the figure below
    12·1 answer
  • What all is equivalent to 7:5
    13·1 answer
  • How do you find simple interest rate?
    10·2 answers
  • A stock has had returns of 11 percent, 18 percent, 20 percent, −13 percent, 25 percent, and −9 percent over the last six years.
    15·1 answer
  • 32)<br> Solve for x:<br> 5(x + 1) - 8 = 5x(2 - 4)<br> A)<br> -5<br> B)<br> 5<br> D)
    12·2 answers
  • What is JL brainliest for answer
    9·1 answer
  • The vertices of rectangle WXYZ are W(-4, -3), X(-4,1), and Y(2, 1). a. What are the coordinates of the fourth vertex? b. Find th
    8·1 answer
  • Hey! I am so confused rn. Can you give me some instructions and pointers on how to use this demos graph? (will brainliest and 5
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!