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
choli [55]
2 years ago
15

Plz help will mark you as brainliest(plz answer 42 and 43​

Mathematics
1 answer:
Lisa [10]2 years ago
3 0

Answer:

  • 41. D,
  • 42. B,
  • 43. A

Step-by-step explanation:

Sides are 120 m, 170 m, 250 m

<h3>41.</h3>

<u>S is the semi-perimeter and is equal to:</u>

  • s = (a + b + c)/2 = (120 + 170 + 250)/2 = 270 m

Correct choice is D

<h3>42.</h3>

The area is easy to calculate using the Heron's formula, since we have all three side lengths known.

Correct choice is B

<h3>43.</h3>

<u>Perimeter is:</u>

  • P = a + b + c = 120 + 170 + 250 = 540 m

Correct choice is A

You might be interested in
I need help with homework these two problems I'm having trouble with
ycow [4]
The gcf of 25 and 60 is 5
3 0
3 years ago
Given: WZ perpendicular to WY, WZ bisects VY, and m angle V = 40.
vaieri [72.5K]
D. 50. Since WZ is perpendicular, it has a right angle plus the 40 degrees given at V equals 130. Add 50 to get 180.
8 0
3 years ago
Read 2 more answers
What is the exponential form of 175
Serggg [28]
First factor 175:

1, 5, 5, 7

Now that we know the factors of 175, combine common factors:

1, 5², 7

Hope this helps!
5 0
3 years ago
find angles a, b, and c. By the way, the angle number in the top left of the circle where you just see a 2, is 122 but it just c
Kruka [31]

Answer:

well with this photo, all i can say is that B=90°

Step-by-step explanation:

resend the photo and I'll find the rest angles for you :)

3 0
1 year ago
Please solve with explanation
leva [86]

Answer:

i pray you get it right lol

Step-by-step explanation:

just ask a teacher

8 0
2 years ago
Other questions:
  • What is the answer to 8(s^2+2s+3)+(2s+s+1)
    15·1 answer
  • ARE and JW comment on here to win and 4-5= what is the answer
    10·1 answer
  • Help me please thanks
    13·2 answers
  • Complete the square to rewite y=x^2-6x+15
    15·1 answer
  • The perimeter of a rectangle is 56 feet. The width of the rectangle is 8 feet less than the length. Find the dimensions of the r
    12·1 answer
  • Use induction to prove: For every integer n &gt; 1, the number n5 - n is a multiple of 5.
    14·1 answer
  • In △BFD, m∠B = 34 ° and m∠FDC = 76°. What is m∠F and m∠FDB?
    13·2 answers
  • Please help need answer now!!
    6·1 answer
  • 30 days were sunny out of 100 days. What fraction of the days were sunny? *
    8·2 answers
  • what percentage of simple interest returest reture must a firm get on their deposit if it wants its birr 25000 to grow to birr 2
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!