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
LiRa [457]
3 years ago
10

Find the area of ΔABC.

Mathematics
1 answer:
zysi [14]3 years ago
6 0

Answer:

Step-by-step explanation:

You know two sides of the triangle and the angle between them, so use the Law of Cosines to solve the triangle.

a² = √(b²+c² - 2bc·cosA)

= √(9²+7.8² -  2·9·7.8·cos(32°)

≅ 4.8

Then use Heron's formula to calculate the area.

semiperimeter s = 0.5×(a+b+c) ≅ 10.8

area = √(s-(s-a)(s-b)(s-c)) ≅ 18.6 square units

You might be interested in
Of five random selected students how many would you expect to vote for bill
Gennadij [26K]

Answer:

none

Step-by-step explanation:

80% of 5 is 4 meaning that the chances of someone voting for Bill are not likely at all

6 0
1 year ago
Read 2 more answers
Find the mid segment of GH
noname [10]

Answer:

B. 2

Step-by-step explanation:

Based on the Midsegment of a trapezoid theorem:

GH = (BC + FE)/2

9x - 3 = (19 + (5x + 1))/2) (substitution)

9x - 3 = (20 + 5x)/2

Cross multiply

2(9x - 3) = 20 + 5x

18x - 6 = 20 + 5x

Collect like terms

18x - 5x = 20 + 6

13x = 26

Divide both sides by 13

x = 26/13

x = 2

8 0
3 years ago
How do you find the square root of a number?
MariettaO [177]

Answer:

multiply a number  by a number

Step-by-step explanation:

such as 8 times 8=64

which means the square root of 64 is 8

3 times 3=9

so the square root of 9=3

Hope this  helps you

6 0
2 years ago
Write an equation that illustrates a number with two decimal places multiplied by a number with one decimal place. The product h
Vilka [71]

Step-by-step explanation:

Let the number with two decimal places be 1.23

Let the number with one decimal place be 4.5

Then 1.23 multiplied by 4.5

= 1.23 × 4.5

= 5.535

The result has more than two nonzero digits.

Note: When you multiply two decimal numbers, the decimal place(s) of the result is the addition of the decimal places of each of the numbers being multiplied.

8 0
3 years ago
Sole this question ? <br>30÷5+(9×5)-3²=<br>​
yuradex [85]

Answer:

  • 30÷5+(45)-9
  • 6+45-9
  • 42
  • I do exams and quizzes if ur interested
7 0
3 years ago
Read 2 more answers
Other questions:
  • In a random sample of 257 adult Orcas in the wild, there were 159 whose total body length was 28 feet or longer. Create a 98% co
    12·1 answer
  • What is the equation of the horizontal line that contains the point (-3,8)? Please show work
    11·1 answer
  • Which of the following pairs of functions are inverses of each other?​
    11·1 answer
  • An economy package of cups has 630 green cups. If the green cups are 30% of the total package, how many cups are in the package?
    6·1 answer
  • What is the slope of the line that passes through the points (3, 8) and (8, 13) ?(
    11·1 answer
  • The table shows the estimated number of bees, y, in a hive x days after a pesticide is released near the hive.
    8·2 answers
  • Which graph represents a sequence that converges because the values approach 2?
    9·2 answers
  • Help???? I can’t figure this out
    6·1 answer
  • ? is in the picture plssssssss answer
    8·2 answers
  • WILL GIVE BRAINLIEST PLEASE ANSWER ASAP! URGENT!
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!