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
Volgvan
3 years ago
7

What is the area of a triangle whose vertices are R(-4,2),S(1,2), and T(-5,-4)

Mathematics
1 answer:
Charra [1.4K]3 years ago
7 0

Answer:

The answer to your question is 30 u²

Step-by-step explanation:

Vertices

R(-4, 2)

S (1, 2)

T (-5, -4)

Find the area using matrices            X    Y

                                          R             -4     2

                                          S              1     2

                                          T             -5   -4

                                          R             -4    2

                                  =| (-4 x 2) + (1 x -4) + (-5 x 2) - [(-4 x -4) + (-5 x 2) + (1 x 2)]|

                                  = |-8 - 4 - 10 - [ 16 - 10 + 2]|

                                  = |-22 - [ 8]|

                                  = |-22 - 8|

                                  = |-30|

                                 = |-30|

Area =                          30 u²                                  

You might be interested in
Will charges $12.50 per hour for painting plus a flat $15 fee for preparation and clean-up. Which linear equation shows the amou
Y_Kistochka [10]
Is the answer W sorry if it is wrong
5 0
3 years ago
What Statistic information we can get from a histogram?
ArbitrLikvidat [17]
The answer should be B
7 0
2 years ago
4# is a two digit number ,where # represents the digit at ones place . 7999 ÷ 4# lies between ---------
Hitman42 [59]

Answer:

7999 \div 4\# lies between 163.245 and 199.975

Step-by-step explanation:

Given

2 digit = 4#

Required

The range of 7999 \div 4\#

Let

\# = 0 --- the smallest possible value of #

So:

7999 \div 40 = 199.975

Let

\# = 9 --- the largest possible value of #

So:

7999 \div 49 = 163.245

<em>Hence, </em>7999 \div 4\#<em> lies between 163.245 and 199.975</em>

4 0
3 years ago
Determine the probability of three sunny days in a row when the probability of rain on each day is 20%
OLga [1]
B 0.8 because the probability of rainy days 0.2 then the probability of sunny days is 0.8
4 0
2 years ago
(50 points)There are x ducks in a pond. The number of swans in the pond is equal to the square root of the number of ducks. If t
RoseWind [281]

there are nine ducks and 3 swans

sqrt of 9 equals 3

3 + 9 = 12

6 0
2 years ago
Read 2 more answers
Other questions:
  • Plz help ill give u brainlis
    9·1 answer
  • The figure below shows a parallelogram ABCD. Side AB is parallel to side DC and side AD is parallel to side BC: A quadrilateral
    13·2 answers
  • A parking lot has 45 empty space. If the ratio of empty spaces to taken spaces is 5:3, how many spaces are there total
    12·1 answer
  • The frequency of A4 is 440.00 Hz.<br> what is the frequency of A6, which is two octaves above A4?
    5·2 answers
  • A shipping container is in the shape of a right rectangular prism with a length of 1 feet, a width of 9.5 feet, and a height of
    10·1 answer
  • What is the value of X
    15·2 answers
  • im bought 10 used books at the yard sale How much did she pay? Did you use addition or multiplication to solve this problem? Why
    11·1 answer
  • Find the solution to the differential equation dx/dy+y/3=0 subject to the initial conditions y(0)=12.
    11·1 answer
  • Find f(g(4)).<br> fg(4)) =
    5·1 answer
  • FAST 59 PTS BRAINLEST
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!