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
AlekseyPX
3 years ago
15

In the right ABC with C=90,A=75 and AB=12cm. Find the area of ABC

Mathematics
1 answer:
Ganezh [65]3 years ago
6 0

Answer:

18 cm^2

Step-by-step explanation:

The legs of a right triangle are the base and height of the triangle.

Since C is a right angle, AB is the hypotenuse.

AC and BC are the legs and the base and height.

sin 75 = BC/12

BC = 12 sin 75

cos 75 = AC/12

AC = 12 cos 75

area = bh/2 = (12 sin 75)(12 cos 75)/2

area = 18 cm^2

You might be interested in
7 feet =___inches can some one help me with this​
ozzi

Answer:

84 in.

Step-by-step explanation:

multiply 12 by 7

there are 12 inches in a foot and 7 feet

5 0
3 years ago
Read 2 more answers
Johnny makes $8.25 an hour working at the local restaurant. His paycheck shows that he works 29.5 hours over the past week. How
svetlana [45]

To do this you can do (pay) x (hours) to work out how much Johnny makes for example:

8.25 x 29.5 = 243.375$ so the answer is 243.375$

4 0
3 years ago
Read 2 more answers
Determine the inverse of the function f (x) = 4(x − 3)2 + 2. inverse of f of x is equal to 3 minus the square root of the quanti
Elodia [21]

The inverse of the function f(x)  = 4(x-3)² + 2 is f^{-1}(x) = \sqrt{\frac{x-2}{4} } + 3

The given function is:

f(x)   =  4(x  - 3)²  +  2

To find the inverse of the function:

Make x as the subject of the formula

4(x-3)^2 = f(x) - 2\\(x-3)^2 = \frac{f(x)-2}{4} \\x - 3 = \sqrt{\frac{f(x)-2}{4} } \\x = \sqrt{\frac{f(x)-2}{4} } + 3

Replace x by f^{-1}(x) and replace f(x) by x

f^{-1}(x) = \sqrt{\frac{x-2}{4} } + 3

Therefore, the inverse of the function is:

f^{-1}(x) = \sqrt{\frac{x-2}{4} } + 3

Learn more here: brainly.com/question/17285960

4 0
2 years ago
Eddie had 30 dollars to spend on 3 gifts. He spent 11
OverLord2011 [107]

Answer:

12.9 or 12 9/10

6 0
2 years ago
which of the following best describes the technique used to graph the equation using the slope and y-intercept ? Y=5x+10
Vinvika [58]
The slope-intercept is y = mx+b. You can use this as a technique for graphing to make the experience easier. The "5" would be the slope or rise/run of the line. The 10 would be where it started on the y-intercept. You could also say it would be (0,10). Since the slope is positive than it would be going in an upward direction. That is why this technique is good for graphing. I hope this helps you and please put me as the brainliest answer. :)
5 0
3 years ago
Read 2 more answers
Other questions:
  • Evaluate<br>4!+3!/2!<br><br>8<br>10<br>15<br><br><br><br><br>​
    6·2 answers
  • Given m || n, find x.
    14·1 answer
  • Just some questions I need answered!<br><br> Solve 4z &gt; -6<br><br> Solve x + 19 &lt;= -5
    10·1 answer
  • Eva's coin purse contained 10 more dimes than nickels. The total value of the nickels and dimes was $10. How many coins of each
    5·1 answer
  • The numbers X, Y, and Z are such that y= KX and Z equals K^2x FK equals 1.5, select a possible values for the set of numbers {x,
    8·1 answer
  • ⚠️15 points⚠️
    11·2 answers
  • Please help me find the circumference and area ​
    12·2 answers
  • I need help on this question pls answer :(
    12·1 answer
  • The water level of a lake fell by 1 1/2 in. during a 3 3/4 ​-week-long dry spell. Simplify the complex fraction below to find th
    10·2 answers
  • Angela is following this recipe to make biscuits.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!