The number is x
it is negative
the square is 28 more than 3 times itself
x²=28+3x
minus (28+3x)
x²-3x-28=0
factor
(x-7)(x+4)=0
set to zero
x-7=0
x=7
this is not the answer because we were told the number was negative
x+4=0
x=-4
correct
the number is -4
test
(-4)²=28+3(-4)
16=28-12
16=16
check
the number is -4
Answer:
Yes .The Pythagorean equation is true.
Step-by-step explanation:
yes, they can, because of the equation below :
a² = b² + c²
40² = 32² + 24²
1600 = 1024 + 576
1600 = 1600 ✓
Answer:
That sucks.
Step-by-step explanation:
Answer:
First triangle
Step-by-step explanation:
First triangle is the obtuse triangle.
I think it is 23 I think I hope I helped
