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
fenix001 [56]
3 years ago
7

Find the area of a triangle with vertices at D(2, 0), E(–1, 0), and F(2, –7).

Mathematics
1 answer:
MAVERICK [17]3 years ago
3 0

Answer:

\frac{21}{2} units²

Step-by-step explanation:

D and E lie on the x- axis and F is vertically below D

The triangle formed is right at D with legs of length 3 and 7

The area (A) of a right triangle is found using the formula

A = \frac{1}{2} bh ( b is the base and h the perpendicular height )

here b = 3 and h = 7, hence

A = \frac{1}{2} × 3 × 7 = \frac{21}{2} units ²

You might be interested in
What is the solution to x/3 = -12
Mademuasel [1]

Answer:

x = -36

Step-by-step explanation:

Just multiply both sides of the equation with 3...,which tend to give a solution of,

; x = -12(3)

; x = -36

7 0
3 years ago
Here goes another question lol oops
Murrr4er [49]
Student 1 and 3.
- (5r - 3s + 1) =  - 5r + 3s - 1
Move the negative into the brackets,
positive becomes negative while two negatives make a positive.
3 0
3 years ago
Read 2 more answers
HELP ME PLS ! 20 POINTS
anygoal [31]

Answer:

<h3>600 times</h3>

Explain Your Answer:

<h3>50ft x 12in = 600 times</h3>
7 0
2 years ago
Read 2 more answers
a cylinder with base are 169π ft^2 and a height twice the radius. what is the lateral area and surface area of the cylinder
Morgarella [4.7K]
Area\ of\ base:A_B=169\pi\ ft^2\\\\A_B=\pi r^2\ \ \ (r-radius)\\\\\pi r^2=169\pi\ \ \ /:\pi\\\\r^2=169\\\\r=\sqrt{169}\\\\r=13\ (ft)\\\\H=2r\to H=2\cdot13=26\ (ft)

&#10;lateral\ area:A_L=2\pi rH\\\\A_L=2\pi\cdot13\cdot26=676\pi\ (ft^2)\\\\Surface\ area:A_S=2A_B+A_L\\\\A_S=2\cdot169\pi+676\pi=338\pi+676\pi=1014\pi\ (ft^2)
5 0
3 years ago
Read 2 more answers
Henry works at a warehouse where he earns $23.56 per hour. How much Henry earn after working for 37 hours 42 minutes?
ANTONII [103]

Answer: 871.72 + (0.3926........x 42)

Step-by-step explanation: 23.56 x 37= 871.72

23.56/60= 0.3926................... x 42

5 0
3 years ago
Read 2 more answers
Other questions:
  • Melcher used 24% if the memory card on his digital camera while taking pictures at a family reunion. If melcher took 96 pictures
    11·1 answer
  • The perimeter of a rectangle is given by the formula A= 2L + 2W, where L is the length of the rectangle and W is the width of th
    14·1 answer
  • Find the hupotenuse if the legs are 3 and 4
    15·2 answers
  • Does anyone understand with work ? Please help me
    11·2 answers
  • Given k║p.
    9·1 answer
  • Heyy! i’ll give brainliest please help.
    12·2 answers
  • Solve -7/3(12s+24)+14=-14
    5·1 answer
  • Ninas garden is 4 1/3 meters long and 3/10 meters wide what is the area of ninas garden?
    15·1 answer
  • Homework question help
    13·1 answer
  • You work part time at a book store and get paid $9.16 per hour. Last month you worked
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!