Answer:
It's A.
Step-by-step explanation:
Let's look at option A:
From the second equation y = -10 - x. Substituting in the first equation:
-10 - x = x^2 + 3x - 5
x^2 + 4x + 5 = 0
Checking the discriminant b^2 - 4ac we get 16 - 4*1*5 = -4 so there are no real roots. (A negative discriminant means no real roots).
So A has no real solution.
B.
x^2 + 3x - 5 = (20 - 4x)/5 = 4 - 0.8x
x^2 +3.8x - 9 = 0
b^2 - 4ac = (3.8)^2 - 4*1*-9 = 50.44 (positive) so there are real roots.
C.
x^2 + 3x - 5 = -9 - x
x^2 + 4x + 4 = 0
b^2 - 4ac = 4^2 - 4*1*4 = 0 so there are real roots.
Answer: 0.6 = 0.60 and 39 is lower than 60 so there for 0.6 is higher
Step-by-step explanation:
Answer:
29
Step-by-step explanation:
11
- 4
Take nine out - square root of 9 is 3
= 3 x 11 - 4
= 33 - 4
= 29
can not be simplified any more
Hope that helped!!! k
N = 17/6
or
2.83 (3 is repeating)
Answer:
Step-by-step explanation:
To find an equation of a line when given the slope and a point we use the formula
From the question we have
We have the final answer as
Hope this helps you
