Im pretty sure the answer is a, sorry if its incorrect.
Answer:
Step-by-step explanation:
y = ½x-6
slope of line = ½
Slope of any perpendicular to the line = -2.
Equation for line of slope -2 that passes through (3,2):
y-2 = -2(x-3)
y = -2x + 8
Answer:
800 mL
Step-by-step explanation:
Let b represent the amount of solution B added to 2400 mL of solution A. The total amount of alcohol (mL) in the mixture is ...
10%×2400 + 50%×b = 20%×(2400 +b)
multiplying by 100 to get rid of the % signs and simplifying, we have ...
24000 +50b = 48000 +20b
30b = 24000 . . . . . . . . . subtract 24000+20b
b = 800 . . . . . . . . . . . . . . divide by 30
Debra added 800 mL of 50% alcohol to her 2400 mL of 10% alcohol to make a 20% solution.
Answer:
Rewrite
(
4
−
3
i
)
2 as (
4
−
3
i
)(
4
−
3
i
)
.
(
4
−
3
i)
(
4
−
3
i
)
Expand (
4
−
3
i
)
(
4
−
3
i
)
using the FOIL Method.
4
⋅ 4
+
4
(
-3
i
)
−
3
i
⋅
4
−
3
i
(
−
3
i
)
Simplify and combine like terms.
7
−
24
i
Step-by-step explanation:
Answer:
x = 0
Step-by-step explanation:
If p is a number other than zero, then
only if x=0.