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
Alex
2 years ago
8

In isosceles triangle ABC, AC=BC=20, the measure of angle A=68, and CD is the altitude to side AB. What is CD to the nearest 10t

h
Mathematics
1 answer:
antiseptic1488 [7]2 years ago
3 0

Answer:

Step-by-step explanation:

Comment

The way the diagram looks when it is drawn is that you are going to need the sine function to solve for the side opposite which is CD.

Formula

Sin(A) = Sin(68 = opposite / hypotenuse     Substitute values.

Solution

sin(68) = altitude (side opposite) / 20       multiply both sides by 20

20*sin(68) = 20* altitude / 20                     substitute for sin(68)

20* 0.9272 = altitude

altitude = 18.5

Answer: 18.5 to the nearest tenth

You might be interested in
Ashley needs to buy some pencils. Brand A has 20 pencils for $6. Brand B has 40 pencils for $8.50. Based on the unit price, whic
Kruka [31]

Answer:

The answer to your question is Brand B

Step-by-step explanation:

Data

Brand A   amount of 20 pencils     cost $6

Brand B   amount of 40 pencils     cost $8.5

Process

1.- Calculate the unit price of each brand of pencils dividing the cost by the number of pencils

Brand A      6/20 = $0.3

Brand B      8.5/40 = $0.21

2.- Conclusion

Brand B is a better deal because you buy more pencils for a lower price.

3 0
3 years ago
What is the area of the sector of the circle below, if the radius is 5 m. and the central angle < AOB measures 88 °. (round a
MariettaO [177]

Answer:

b 19.2

Step-by-step explanation:

a = \pir^{2} for a circle.  We do not want to find the area for a whole circle.  We only want to find the area for part of a circle.  a hole circle is 360 degrees.

a = \frac{88}{360}\pir^{2}

a = \frac{88}{360}\pi(5^{2})

a = 19.2 rounded.

8 0
1 year ago
Read 2 more answers
A culture of bacteria has an initial population of 7100 bacteria and doubles every 2
Allisa [31]

Answer:

Pt=1285237.2855≈ 1285237

YOUR WELCOME :)

3 0
3 years ago
a store is having a sale on chocolate chips and walnuts. for 3 pounds of chocolate chips and 5 pounds of walnuts the total cost
Delvig [45]
If you set you the equations such as 3c+5w=23 and 6c+2w=20 and then solve the first equation for c, you get c= (23-5w)/3 Taking that equation and substituting it for 'c' in the second equation (so the second equation becomes: 6((23-5w)/3)+2w=20  ) you get w=3.25 If you plug that back into your first equation (so it now becomes: 3c+5(3.25)=23 ) you get c=2.25 So the answer would be walnuts cost $3.25 per lb and choc. chips cost $2.25 per lb. 
6 0
3 years ago
if money savings account earned 8% interest per annum, how much interest would be earned on 150.00 over 3 years?
Vlad1618 [11]

Answer:

$36

Step-by-step explanation:

Use the simple interest formula, I = prt

Plug in the interest rate, original amount of money, and number of years:

I = prt

I = (150)(0.08)(3)

I = 36

So, $36 in interest would be made

8 0
2 years ago
Other questions:
  • The equation d=13/v shows that the density of a particular substance equals a mass of 13 grams divided by the volume of the subs
    7·1 answer
  • S^4x = 27^x - 3<br> What is the value of x?
    10·1 answer
  • About 24% of flights departing from New York’s John F. Kennedy International Airport were delayed in 2009. Assuming that the cha
    10·1 answer
  • What is 0.4 divided by 0.242? Divide and check your answer using multiplication. Show your work.
    9·2 answers
  • Write 3435.332 out using words<br> (Pic for friends)
    12·1 answer
  • Find the length of the third side. If necessary, round to the nearest tenth. 24 28
    11·1 answer
  • What point is shown on the number line below?
    7·2 answers
  • To make 12 ounces of hot chocolate, 3 tablespoons of cocoa are needed. How many tablespoons of cocoa are needed to make 72 ounce
    5·1 answer
  • 9.20 Divide it by 100 and write the product in expanded form​
    8·1 answer
  • At an internet cafe, there is a flat fee to log into a computer and an additional charge for each minute on the computer. The fe
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!