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
DENIUS [597]
3 years ago
10

B and C trisect AD and M is the midpoint of AD. MC=8. How many units are in the length of AD?

Mathematics
1 answer:
sineoko [7]3 years ago
4 0

Answer:

48

Step-by-step explanation:

B and C trisrct AD so

that means that

AB=BC=CD

M is the midpoint so AM =MD

M is also the midpoint of BC also so if MC equal 8 l, BM equal 8. We add 8 and 8 together to find the value of BC which equal 16. Since BC equal 16 and it trisects AD, AB equal 16 and CD equal 16. Add all together and we get 16+16+16=16×3=48

You might be interested in
if one face of a cube has an area of 6.75 square inches , what is the surface area of the entire cube ?​
Travka [436]

Answer:

40.5

Step-by-step explanation:

a cube has 6 faces so 6.75 x 6 = 40.5

3 0
3 years ago
A random sample of 49 statistics examinations was taken. the average score, in the sample, was 84 with a variance of 12.25. the
tester [92]

Since in this case we are only using the variance of the sample and not the variance of the real population, therefore we use the t statistic. The formula for the confidence interval is:

<span>CI = X ± t * s / sqrt(n)                      ---> 1</span>

Where,

X = the sample mean = 84

t = the t score which is obtained in the standard distribution tables at 95% confidence level

s = sample variance = 12.25

n = number of samples = 49

From the table at 95% confidence interval and degrees of freedom of 48 (DOF = n -1), the value of t is around:

t = 1.68

 

Therefore substituting the given values to equation 1:

CI = 84 ± 1.68 * 12.25 / sqrt(49)

CI = 84 ± 2.94

CI = 81.06, 86.94

 

<span>Therefore at 95% confidence level, the scores is from 81 to 87.</span>

6 0
3 years ago
50 POINTS!
padilas [110]
To double the principle the formula is
2p=p e^rt
2=e^rt
2=e^0.12t
Solve for t
T=(log(2)÷log(e))÷0.12
T=5.78 years
5 0
3 years ago
I need help on this question!!
elena55 [62]
I think the answer is D, 28*11=308 plus the 12*14 equals 476. The answer is D
3 0
3 years ago
Mathhhhhhh testtttt Add a statement, equation and concluding statement
Tom [10]

Answer:

Charlene earns $700 per week

Kristi earns $550 per week

Sascha earns $800 per week

Step-by-step explanation:

Since Kristi earns 150 less than Charlene which is 100 less than Sascha, this is equal to the value of Sascha minus 250. We put this in the equation as s-250.

Together, they all earn $2050, so we must equal this to Charlene's value k+150, plus Kristi's value k, plus Sascha's value s.

<em>k+150+k+s=2050</em>

The next step here is to put the variables on one side and to put the numeric values on the other.

2k+s=1900

Like we said before, Kristi's value is equal to s-250, so we would replace k with that expression.

2(s-250)+s=1900

2s-500+s=1900

3s=2400

s= 800

We now have Sandra's weekly pay, which we can use to find the others' pay.

c= s-100

c= 800-100

c= 700

k= c-150

k= 700-150

k= 550

7 0
2 years ago
Other questions:
  • Jane works at The Bottling Company. She needs to put 8,500 bottles of water into cases. So far she has put 2,136 in cases. How m
    15·1 answer
  • WILL GIVE BRAINLIEST IF DO QUICKLY!!! $A$, $B$, $C$, and $D$ are positive digits such that $\overline {ABCD} + \overline {BCD} +
    15·1 answer
  • If 12 is replaced with 3 in the following set what will happen with the value of the range 28,45,12,34,36,45,19,20
    5·2 answers
  • Give the digits in the tens place and the tenths place.<br><br> 12.05
    6·1 answer
  • There are 90 total days in winter. If it snowed 30% of the days, on how many days did it snow?
    10·2 answers
  • The response to a question has three alternatives: A, B, and C. A sample of 120 responses provides 60 A, 12 B, and 48 C. Show th
    9·1 answer
  • Determine the slope of the line represented by the equation y + 7 = -9/4(x – 4) . Represent the slope in decimal form.
    14·1 answer
  • Please help me.
    12·2 answers
  • Can anybody do this please hurry
    11·1 answer
  • The Ears-to-the-Wind Car Rental charges $100 per day and 11 cents per mile to rent a sport utility
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!