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
Veseljchak [2.6K]
3 years ago
14

Geometry math question no Guessing and Please show work thank you

Mathematics
2 answers:
Fiesta28 [93]3 years ago
3 0

Theorem

In a triangle, the measure of an exterior angle equals the sum of the measures of its two remote interior angles.

x + y = z

4n - 18 + n + 8 = 133 - 6n

5n - 10 = 133 - 6n

11n = 143

n = 13

z = 133 - 6n = 133 - 6(13) = 133 - 78 = 55

Answer: C. 55

Sonja [21]3 years ago
3 0
The answer would be C and you could plug it in to check as well
You might be interested in
A box contains different colored paper clips. The probability of drawing two red paper clips from the box without replacement is
ivann1987 [24]

Answer: 5/14 which is choice B

================================================

How I got this answer:

Define the following events

A = event of picking a red paper clip on the first selection

B = event of picking a red paper clip on the second drawing

Replacement is not made.

Now onto the probabilities for each

P(A) = 2/5 = 0.4 is given to us as this is simply the probability of picking red on the first try

P(A and B) = probability of both events A and B happeing simultaneously = 1/7

P(B|A) = probability event B occurs, given event A has occured

P(B|A) = probability of selecting red on second selection, given first selection is red (no replacement)

P(B|A) = P(A and B)/P(A)

P(B|A) = (1/7) / (2/5)

P(B|A) = (1/7) * (5/2)

P(B|A) = (1*5)/(7*2)

P(B|A) = 5/14

So if event A happens, then the chances of event B happening is 5/14

------------------

A more concrete example:

If we had 15 paperclips, and 6 of them were red, then

P(A) = (# of red)/(# total) = 6/15 = 2/5

P(B|A) = (# of red left)/(# total left) = (6-1)/(15-1) = 5/14

P(A and B) = P(A)*P(B|A) = (2/5)*(5/14) = 10/70 = 1/7

7 0
4 years ago
Read 2 more answers
Pamela has 4 pink ribbons, 3 green ribbons, and 1 blue ribbon. what fraction of Pamela's ribbons are green?
Brrunno [24]
The total number of ribbons is 8 because 4 + 3 + 1 is 8
The number of green ribbons is 3
That means that 3 out of the 8 ribbons are green
Answer: 3/8
6 0
3 years ago
Read 2 more answers
7. The probability that a randomly chosen student will be left-handed is .09: a) In a class of 108, find the probability that th
vampirchik [111]

Solution :

Let x be student will be left handed

P = 0.09

Using the normal approximation to binomial distribution,

a). n = 108,

    μ = np = 9.72

    $\sigma = \sqrt{np(1-p)}$

       $=\sqrt{8.8452}$

       = 2.9741

Required probability,

P(x=8) = P(7.5 < x < 8.5)

$=P\left(\frac{7.5-9.72}{2.9741}< \frac{x-\mu}{\sigma}< \frac{8.5-9.72}{2.9741}\right)$

$=P(-0.75 < z < -0.41)$

Using z table,

= P(z<-0.41)-P(z<-0.75)

= 0.3409-0.2266

= 0.1143

b). P(x=12) = P(11.5 < x < 12.5)

$=P\left(\frac{11.5-9.72}{2.9741}< \frac{x-\mu}{\sigma}< \frac{12.5-9.72}{2.9741}\right)$

$=P(0.60 < z < 0.94)$

Using z table,

= P(z< 0.94)-P(z< 0.60)

= 0.8294 - 0.7257

= 0.1006

7 0
3 years ago
What is true about triangle ABC. Select three options
liubo4ka [24]

Answer: The answer is sin A = cos C

Step-by-step explanation: sin A = cos C

6 0
3 years ago
What is the answer to -2(7-y)+4=-
pashok25 [27]

Answer:

2y-10

Step-by-step explanation:

-2(7-y)+4

distribute:

=(-2)(7)+(-2)(-y)+4

= -14+2y+4

Combine like terms:

= -14+2y+4

=(2y)+(-14+4)

= 2y+-10

8 0
3 years ago
Other questions:
  • The vertices of ΔGHI are G (2, 4), H (4, 8), and I (8, 4). The vertices of ΔJKL are J (1, 1), K (2, 3), and L (4, 1). Which conc
    10·1 answer
  • a company sells a container of trail mix that is 10% cnady pieces and another container that is 25% candy pieces. how many cups
    10·1 answer
  • A tortoise is walking in the desert. It walks for
    14·1 answer
  • !!!!!!SHOW WORK!!!!!!
    9·1 answer
  • What are the solutions to the equation?<br><br> n^2−8n+16=25
    8·1 answer
  • Which statement represents the biconditional statement of the conditional statements?
    9·1 answer
  • Help please i really need help please ! i will upvote
    11·1 answer
  • Which expression is equivalent to 2(3g - 4) - (8g + 3)?
    10·1 answer
  • Kohl's sells Nike shoes for n dollars. Next week they will offer a 25% off coupon. Write the expression for the new price in 2 d
    6·1 answer
  • Find the slope of the line that passes through each pair of points a. (-4, 5), (1, 1)
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!