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
nasty-shy [4]
1 year ago
7

Please Help I Don't Undertand.

Mathematics
1 answer:
frozen [14]1 year ago
4 0

If triangles AMN and ABC are similar, then

AM/AB = AN/AC

or

AM/(AM + MB) = AN/(AN + NC)

Check if this is true:

AM/AB = 21/(21 + 9) = 21/30 = 7/10

AN/AC = 14/(14 + 6) = 14/20 = 7/10

The angle at vertex A is common to both of the triangles.

Then by the side-angle-side (SAS) similarity theorem, the triangles are indeed similar.

You might be interested in
A safety officer wants to prove that μ = the average speed of cars driven by a school is less than 25 mph. Suppose that a random
Akimi4 [234]

Answer:

t=\frac{24-25}{\frac{2.2}{\sqrt{14}}}=-1.70    

The degrees of freedom are given by:

df=n-1=14-1=13  

The p value for this case would be given by:

p_v =P(t_{(13)}  

Step-by-step explanation:

Information given

\bar X=24 represent the mean height for the sample  

s=2.2 represent the sample standard deviation

n=14 sample size  

\mu_o =25 represent the value that we want to test

t would represent the statistic

p_v represent the p value for the test

Hypothesis to verify

We want to cehck if the true mean is lees than 25 mph, the system of hypothesis would be:  

Null hypothesis:\mu \geq 25  

Alternative hypothesis:\mu < 25  

The statistic would be given by:

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}  (1)  

Replacing the info given we got:

t=\frac{24-25}{\frac{2.2}{\sqrt{14}}}=-1.70    

The degrees of freedom are given by:

df=n-1=14-1=13  

The p value for this case would be given by:

p_v =P(t_{(13)}  

8 0
3 years ago
two angles form a linear pair. the measure of one angle is three times the measure of the other. find the measure of each angle.
Sav [38]

Answer:

measure of a angle 1 = x

measure of angle 2= 3x

3x+1x=180 ( linear pair)

4x=180

x= 180÷4

x= 45

angle one = x= 45

angle two = 3x = 3×45= 135

the 2 angles are

45 and 135

6 0
2 years ago
How many posts does it take to support a fence around a square field measuring 100 feet on a side if posts are placed every 10 f
elena-14-01-66 [18.8K]

Answer:

10 Posts

Step-by-step explanation:

100ft. / 10ft.

it's is kind of simple

3 0
3 years ago
The following stem-and-leaf plot represents the scores earned by Mr. Wood's class on their most recent science test.
astra-53 [7]

Answer:

11

Step-by-step explanation:

If you count the total values

it equals 11

6 0
2 years ago
Which linear function represents the line given by the point-slope equation y 1 = –3(x – 5)?
Mazyrski [523]
Belowwwwwwwwwwwwwwwwwwww

8 0
3 years ago
Other questions:
  • Which point is on the graph of f(x)=6x?
    12·2 answers
  • 30 tens - 3 tens 3 tenths
    13·1 answer
  • Which point would be a solution to the system of linear inequalities ?
    13·1 answer
  • 1) Find an equation of the line that passes through the point and has the indicated slope m. (Let x be the independent variable
    7·1 answer
  • At Glenridge High School, 20 percent of the
    11·1 answer
  • What is the value of x?​
    10·1 answer
  • HELP PLEASE!<br> Evaluate. 12⋅(4−24−4) 14 34 16 192
    10·2 answers
  • Help needed for assignment
    13·1 answer
  • Please answer will give branliest eeeeeee
    7·1 answer
  • A and B are partners sharing profit and loss in the ratio of 3:2. A new partner C is admitted and 1/4 share off profit is given.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!