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
Nutka1998 [239]
3 years ago
5

Here’s Question three

Mathematics
1 answer:
Hitman42 [59]3 years ago
5 0

Answer:

BD = 3 units

Step-by-step explanation:

Since, AD is an angle bisector of ∠BAC,

m∠BAD = m∠CAD = 20°

CD = 3 units

In ΔACD and ΔABD,

m∠BAD = m∠CAD = 20° (Given)

AD ≅ AD [Reflexive property]

Therefore, by H-A property of congruence both the triangles will be congruent.

And by CPCTC,

CD ≅ BD = 3 units

You might be interested in
The time to assemble the first unit on a production line is 8 hours. The learning rate is 0.81. Approximately how long will it t
pochemuha

Answer:

4.428 hours

Step-by-step explanation:

If the learning rate is 0.81, the slope of the learning curve is:

b=\frac{ln(0.81)}{ln(2)} \\b=-0.304

The time it takes to produce the n-th unit is:

T_n=T_1*n^b

If T1 = 8 hours, the time required to produce the seventh unit will be:

T_n=8*7^{-0.304}\\T_n=4.428\ hours

It will take roughly 4.428 hours.

3 0
3 years ago
Heeeeeeeeeeeeeeeeelp
lys-0071 [83]

Answer:

a b

Step-by-step explanation:

7 0
3 years ago
Right triangle FHG is shown. The sine of angle F is 0.53. What is the cosine of Angle h ?
g100num [7]

<u>Given</u>:

Given that FGH is a right triangle. The sine of angle F is 0.53.

We need to determine the cosine of angle H.

<u>Cosine of angle H:</u>

Given that the sine of angle F is 0.53

This can be written as,

sin F=0.53

Applying the trigonometric ratio, we have;

\frac{HG}{FH}=0.53 ----- (1)

Now, we shall determine the value of cosine of angle H.

Let us apply the trigonometric ratio cos \ \theta=\frac{adj}{hyp}, we get;

cos \ H=\frac{HG}{FH} ----- (2)

Substituting the value from equation (1) in equation (2), we get;

cos \ H=0.53

Thus, the cosine of angle H is 0.53

6 0
3 years ago
If sin(2x) = cos(x + 30"), what is the value of x?<br> 20°<br> 30°<br> 500<br> 1100
ivanzaharov [21]

Answer:

2x=(x+30)

2x+x=30

3x=30

x=30÷3

x=10

7 0
3 years ago
Read 2 more answers
The ratio of boys to girls in a club is 4:3. If there are 48 boys, how many members of the club are there?
DochEvi [55]

Answer:

84

Step-by-step explanation:

Basically the ratio was multiplied by 12 to get the number of boys so you do the same to the other one.

6 0
3 years ago
Read 2 more answers
Other questions:
  • This is the right table my bad. Need the equation
    14·2 answers
  • *****WHO ANSWERS WILL BE MARK AS BRAINLIEST*******
    11·2 answers
  • Pls help me with math will give BRAINLIEST
    5·1 answer
  • Consider the incomplete paragraph proof. Given: Isosceles right triangle XYZ (45°–45°–90° triangle) Prove: In a 45°–45°–90° tria
    13·2 answers
  • What is the VERTEX of the quadratic function? Write your answer as a point (x,y)
    14·1 answer
  • A geologist examines 6 seawater samples for lead concentration. The mean lead concentration for the sample data is 0.903 cc/cubi
    6·1 answer
  • Although it is now extinct, the Carolina parakeet was last seen in Florida in 1920. Back then, large areas of habitat were logge
    15·1 answer
  • I need help plssssss plsss here seggy picture too
    6·2 answers
  • Find the area of the following
    10·1 answer
  • The formula for the volume of a cone is v= 1/3 xr^2 h. The radius, r, of the cone may be expressed as
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!