<span> If the third side (X) is the hypotenuse then length of X is sqrt(20^2+21^2)
If the hypotenuse is the side 21 cm long then length of the third side = sqrt(21^2-20^2) . I hopr this helped!!</span>
No because .9 is the same as .90
It would be like saying:
Jack says 10.0 is between 10 and 11.
Jack would be wrong because 10.0 and 10 are the same number.
Hope this helped!
Mark Brainliest! <3
Answer:
<h2>
I know about a website for fractions to decimals, It's call "fractions to decimals calculator soup."</h2>
Step-by-step explanation:
Answer:
(2,-3)
Step-by-step explanation:
I am not sure if you meant the first equation to be y or -y. I solved it as y.
y = x-5 -x -3y =7
I am going to take the second equation and write it as x =
-x - 3y = 7 Give equation
-x = 3y +7 Add 3y to both sides
x = -3y-7 Multiplied each term in the equation by -1 so that x could be positive
I am going to substitute -3y-7 for x in the first equation up above
y = x - 5
y = -3y -7 - 5 Substitute -3y-7 for x
y = -3y -12 Combined -7-5
4y = -12 Added 3y to both sides
y = -3 Divided both sides by 4.
I now know that y is -3, I will plug that into x = -3y-7 to solve for x
x = -3(-3) -7
x = 9-7 A negative times a negative is a positive
x = 2
By definition, the formula for finding the area of a trapezoid is
A = [(b1 + b2) x h] / 2
Where,
b1: Base 1
b2: Base 2
h: height, or distance between bases.
Substituting we have:
A = ((5 + 4) * (2.5)) / 2
A = 11.25 feet ^ 2
Answer:
the area of the seat is:
A = 11.25 feet ^ 2
