4x^2 + 20 = 0; TAKING SQUARE ROOTS
1 answer:
Answer:
<u>x₁ = i√5</u>
<u>x₂ = -i√5</u>
Step-by-step explanation:
Let's solve the equation using square roots.
4X^2 + 20=0
x² + 5 = 0 (Dividing by 4 at both sides of the equation)
x² = -5 (Subtracting 5 at both sides of the equation)
√x² = √-5 (Square root to both sides of the equation, √-1 = i)
x = +/- i√5 ( (Roots of the solution)
<u>x₁ = i√5</u>
<u>x₂ = -i√5</u>
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X = -6/5 I hope this helps
Answer:
You need to multiply by 6. Hint it say's it costs $6 per square meter that means times
Step-by-step explanation:
Answer:
Yes.
Step-by-step explanation:
x=2
y=6
(2) + (6) = 8
8 = 8
3(2) - (6) = 0
6 - 6 = 0
0 = 0
Answer:
78.46
Step-by-step explanation:
Given that
Pop. Standard deviation = 1.61
Sample standard deviation = 2.15
Sample mean = 7.47
Sample size = 45
Recall that
Test stat for chi square
= (n - 1) (sample standard dev/pop standard dev)^2
= 45 - 1 (2.15/1.61)^2
= 44(1.3354)^2
= 44 × 1.78329
= 78.46
Hi,
It is unlikely that the game show contestant will win the boat.
To be exact it is 20% chance that the game show contestant will win the boat.
XD
