PLEASE HELP!!!!!!!!!!!!!
1 answer:
Answer:
Step-by-step explanation:
a) To find the length of diagonal XT, we can use the distance formula to get
Since this is a rectangle, XT=YW, meaning YW=10 as well.
b) The area of a rectangle is given by length times width. The length is |-3-5|=8, and the width is |-2-4|=6. So the area is (8)(6)=48.
c) The perimeter is just 2(8+6)=28.
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<h3>Answer: 85</h3>
Work Shown:
I used the pythagorean theorem with a = 40 and b = 75. The order of the 'a' and b doesn't matter, as long as c is the largest side.
The 40-75-85 pythagorean triple is the scaled up version of the 8-15-17 triple (multiply each piece by 5).
Answer:
x = 3
Step-by-step explanation:
calculate the slope using the slope formula and equate the result to - 2
m =
with (x₁, y₁ ) = (5, 4) and (x₂, y₂ ) = (x, 8)
m = =
= - 2, thus
- 2(x - 5) = 4, that is
- 2x + 10 = 4 ( subtract 10 from both sides )
- 2x = - 6 ( divide both sides by - 2 )
x = 3