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
CaHeK987 [17]
2 years ago
7

Someone please help!!!!!!!!!!!!!!!

Mathematics
2 answers:
Harrizon [31]2 years ago
8 0

Answer:

7

Step-by-step explanation:

xy + | -49/1| (-1)

Let x=7 and y = 8

7*8 +  | -49/1| (-1)

56 +  | -49/1| (-1)

The absolute value of -49 is 49

56  +49 (-1)

Multiply

56-49

7

Pavlova-9 [17]2 years ago
4 0

Answer:

7

Step-by-step explanation:

Step 1: Define

xy + |-49/1|(-1)

x = 7

y = 8

Step 2: Simplify

xy + |-49|(-1)

xy + 49(-1)

xy - 49

Step 3: Substitute and Evaluate

7(8) - 49

56 - 49

7

You might be interested in
5.b 4 of 16+8) <br>answer plz​
inysia [295]

Answer:

4×16+8

=64+8

=72

hope it helps u

4 0
3 years ago
Solve the following inequality. 5x-3 &gt; 7
bekas [8.4K]

Answer:

x > 2

Step-by-step explanation:

5x-3>7

+3 to both sides

5x>10

divide 5 to both sides

x>2

8 0
3 years ago
In ∆ PQR, ∠P = 75°, ∠Q = 60° then ∠R =​
densk [106]

Step-by-step explanation:

<R = 180-<P-<Q

<R= 180-60-75

<R = 45°.

hope this helps you

6 0
2 years ago
Please help! I don't understand how to solve this problem
Ilia_Sergeevich [38]

Using the z-distribution, a sample of 142,282 should be taken, which is not practical as it is too large of a sample.

<h3>What is a z-distribution confidence interval?</h3>

The confidence interval is:

\overline{x} \pm z\frac{\sigma}{\sqrt{n}}

The margin of error is:

M = z\frac{\sigma}{\sqrt{n}}

In which:

  • \overline{x} is the sample mean.
  • z is the critical value.
  • n is the sample size.
  • \sigma is the standard deviation for the population.

Assuming an uniform distribution, the standard deviation is given by:

S = \sqrt{\frac{(4 - 0)^2}{12}} = 1.1547

In this problem, we have a 95% confidence level, hence\alpha = 0.95, z is the value of Z that has a p-value of \frac{1+0.95}{2} = 0.975, so the critical value is z = 1.96.

The sample size is found solving for n when the margin of error is of M = 0.006, hence:

M = z\frac{\sigma}{\sqrt{n}}

0.006 = 1.96\frac{1.1547}{\sqrt{n}}

0.006\sqrt{n} = 1.96 \times 1.1547

\sqrt{n} = \frac{1.96 \times 1.1547}{0.006}

(\sqrt{n})^2 = \left(\frac{1.96 \times 1.1547}{0.006}\right)^2

n =  142,282.

A sample of 142,282 should be taken, which is not practical as it is too large of a sample.

More can be learned about the z-distribution at brainly.com/question/25890103

#SPJ1

8 0
1 year ago
You randomly choose one paper clip from a jar. In the jar there are 6 green, 3 white, 4 red, 2 blue, and 5 yellow paper clips.
Taya2010 [7]

Answer:

3/10

Step-by-step explanation:

Total paper clip =6+3+4+2+5

=20

Probability of green = number of green/total

= 6/20

leaving in it's lowest term

probability of green=3/20

4 0
3 years ago
Other questions:
  • A 5-card hand is dealt from a deck of 52 cards. what is the probability that 4 are hearts
    5·1 answer
  • Which of the following has the lowest unit price?
    11·1 answer
  • What is the number that is one half of one quarter of one tenth of 400?
    6·1 answer
  • What is 9 times 6 plus 7 minus 10?<br>​
    14·1 answer
  • Ill mark brainlist plss help
    9·1 answer
  • Sale Price Question... Help Please<br> A $36 clock is on sale for 30% off. What is the sale price?
    12·2 answers
  • What is the solution
    10·1 answer
  • A caterer charges $275 for 15 people and $425 for 25 people. The cost, y, is a
    12·1 answer
  • Sketch a possible curve of f(x) given the graphs of f ‘ (x) and f’’ (x) below:
    8·1 answer
  • Which quadrilaterals are not squares?<br><br> Choose each correct answer.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!