Answer:
A.
Step-by-step explanation:
you have to find the discriminant
b²-4ac for each equation
if discriminant < 0 no real solutions because will be negative under the squareroot whhan you try to find the roots
if discriminant = 0 there is only one solution
if discriminant > 0 two real solutions
for your given problems
A. discriminant =(-2)²-4*2*15 will be negative
Answer:
12/5
Step-by-step explanation:
All you do is multiply
Sa= bw+hw+lw+

(2)
SA=(12*4)+(16*4)+(20*4)+(

)
SA= 28+64+80+(6*16*2)
SA=28+64+80+(96*2)
SA=28+64+80+192
SA=364
1/18 as a decimal is 0.055555555555556 because you divide one by eighteen and get that number.
Hope this helped!
Answer:
The answer is 21.10
Explanation:
If her bill in July was $52.75 and her bill in August was only 60% of July
60% of 52.75 is 31.65
and they asked how much more she paid:
52.75-31.65 = 21.10
hope this helps!