Answer:
Option 1: 1430p + 2200 = -4001
Step-by-step explanation:
Given that:
1.43p + 2.2 = -4.001
We can replace:
1.43p by 1430p * 10^-3
2.2 by 2200 * 10^-3
-4.001 by -4001* 10^-3
So the equation will become:
1430p * 10^-3 + 2200* 10^-3 = -4001 * 10^-3
Taking 10^-3 common from both side
(1430p + 2200)* 10^-3 = -4001 * 10^-3
Cancelling 10^-3 from both sides we get:
1430p + 2200 = -4001
Answer:
The mistake was dividing by 2 when he should have divided by -2!
Step-by-step explanation:
x=-4
Answer:
(1)
x = 128/3
y = 52/3
(2)
x=3
Step-by-step explanation:
(1)
x+y=60 => 3y=52 => y=52/3 => x=128/3
x=2y+8
(2)
M1V1 + M2V2 = MV
x × 10 + x × 70 = 6 × 40
80x = 240
x = 3
Answer:
Option A is correct: (sinx)^2 + (cosx)^2 = 1
(due to the property of trigonometry)
Hope this helps!
:)
Answer:
D
Step-by-step explanation:
(-8)^-2 would be 1/-64 not 1/64
