Answer:
bigger number is 18
smaller number is 6
Step-by-step explanation:
let x be the bigger number and y the smaller
the sum of two numbers is the same as four times the smaller
x+y=4y
x=4y-y
x=3y--------i
if twice the larger is decreased by the smaller, the result is 30
2x-y=30----ii
substituting i for x in ii
2(3y)-y=30
6y-y=30
therefore
5y=30
y=30/5
y=6------iii
substituting iii for y in i to solve for x gives
x=3*6
=18
Answer:
x = 2
i
√
2
,
−
2
i
√2
Step-by-step explanation:
You could use factoring or the square root property!
Answer:
2³ +2³= 12.
13¹ + 2² = 17
Step-by-step explanation:
2 x 3 is 6 and 6 + 6 is twelve and 13 x 1 is 13 and 2 x 2 is 4 making it 17 hope this helps
Answer:
Two distinct roots means two real solutions for x (the parabola needs to cross the x-axis twice)
Step-by-step explanation:
I’m really stuck on math right now and i need help so bad!!