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
avanturin [10]
2 years ago
6

Geometry please answer

Mathematics
1 answer:
nika2105 [10]2 years ago
3 0

Answer: 8

Step-by-step explanation:

\frac{180(n-2)}{n}=135\\180(n-2)=135n\\180n-360=135n\\-360=-45n\\n=\boxed{8}

You might be interested in
The table below shows last year's gross income, standard deduction, and number of exemptions for four different workers.
kozerog [31]
<span> <span> </span><span><span> Employee <span>           Dante </span> <span>          Elvira </span> <span>        Josie </span> <span>         Victor </span>
</span> <span> Gross Income <span>    52,988.00 </span> <span>   43,829.00 </span> <span>   49,789.00 </span> <span>   46,912.00
</span> </span> <span> Std. deduction <span>     8,350.00 </span> <span>     5,700.00 </span> <span>     8,350.00 </span> <span>     5,700.00
</span> </span> <span> <span># of exemption </span> <span>         3 </span><span>               1 </span><span>               2 </span><span>               2 
</span> </span> <span> total exemption <span>   10,950.00 </span> <span>     3,650.00 </span> <span>     7,300.00 </span> <span>     7,300.00
(# of exemption * 3,650)

</span> </span> <span> </span> <span> taxable income <span>   33,688.00 </span> <span>   34,479.00 </span> <span>   34,139.00 </span> <span>   33,912.00
(Gross Income - Std. deduction - total exemption)

Among the workers, DANTE has the lowest taxable income last year. </span></span></span></span>
8 0
3 years ago
Solve the system (picture) by substitution
Westkost [7]
Try out all of your options by filling the the x and y values from each option. You can use either of the two equations to solve

1) 2(2)+3(3) does not equal 5
2) 2(3)+3(2) does not equal 5
3) 2(3)+3(-2) does not equal 5
4) 2(-2)+3(3) equals 5
4.5) Double check your answer by doing the same thing for the second equation // 3(-2)+2(3) does equal zero.

D
6 0
3 years ago
Deborah finds that that the theoretical probability of flipping "heads" on a fair coin was 50%. After she flipped the fair coin
nydimaria [60]

Answer: 5% if it’s bubble sheet then 0.05

Step-by-step explanation:

Probability of flipping heads=50%

Probability of flipping practically = 45/100

=45

So 50%-45% = 5%

7 0
2 years ago
To help consumers assess the risks they are taking, the Food and Drug Administration (FDA) publishes the amount of nicotine foun
QveST [7]

Answer:

We conclude that  the mean nicotine content is less than 31.7 milligrams for this brand of cigarette.

Step-by-step explanation:

We are given the following in the question:  

Population mean, μ = 31.7 milligrams

Sample mean, \bar{x} = 28.5 milligrams

Sample size, n = 9

Alpha, α = 0.05

Sample standard deviation, s =  2.8 milligrams

First, we design the null and the alternate hypothesis

H_{0}: \mu = 31.7\text{ milligrams}\\H_A: \mu < 31.7\text{ milligrams}

We use One-tailed t test to perform this hypothesis.

Formula:

t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n}} }

Putting all the values, we have

t_{stat} = \displaystyle\frac{28.5 - 31.7}{\frac{2.8}{\sqrt{9}} } = -3.429

Now, t_{critical} \text{ at 0.05 level of significance, 8 degree of freedom } = -1.860

Since,                  

t_{stat} < t_{critical}

We fail to accept the null hypothesis and accept the alternate hypothesis. We conclude that  the mean nicotine content is less than 31.7 milligrams for this brand of cigarette.

3 0
3 years ago
Which of the following is not a real number?
Aleks [24]

Answer:

D:  √(-4)

Step-by-step explanation:

D:  √(-4) is not a real number; it's an imaginary one.

3 0
2 years ago
Other questions:
  • We are given a table that displays the current value of search engine giant Google. Using the table below, determine the closing
    14·2 answers
  • What is water cement ratio?
    8·2 answers
  • a rectangle is 12 in wide and 18 in tall.if it is reduce to a height of 3 inches, then how wide will it be?
    10·2 answers
  • Banana cheese salad with cheese on top
    11·2 answers
  • Pls Solve the equation.
    7·2 answers
  • Find the distance between the points (-5, O) and (-4, 1).
    12·2 answers
  • What is the slope of the line that passes through points (1,7),(10,1)
    5·2 answers
  • Please help! will give brainliest Find the value of x. A. 74 B. 52 C. 64 D. 244
    8·1 answer
  • What is the product? enter your simplified answer in the box. −1/4⋅(−6/11)
    7·1 answer
  • PLZZZZZZZZZZZ HELP WRITE THIS AS A EQUATION AND SOLVE PLZZZZZZZZZ
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!