The answer is 0.
1 • -2 = -2
-2 + -2 = -4
-4 • -2 = 8
-8 + 8 = 0
0 • -2 = 0
Answer:
x = 2 + sqrt(2) or x = 2 - sqrt(2) thus B. is your answer
Step-by-step explanation:
Solve for x over the real numbers:
4 x^2 - 16 x + 8 = 0
Hint: | Write the quadratic equation in standard form.
Divide both sides by 4:
x^2 - 4 x + 2 = 0
Hint: | Solve the quadratic equation by completing the square.
Subtract 2 from both sides:
x^2 - 4 x = -2
Hint: | Take one half of the coefficient of x and square it, then add it to both sides.
Add 4 to both sides:
x^2 - 4 x + 4 = 2
Hint: | Factor the left-hand side.
Write the left-hand side as a square:
(x - 2)^2 = 2
Hint: | Eliminate the exponent on the left-hand side.
Take the square root of both sides:
x - 2 = sqrt(2) or x - 2 = -sqrt(2)
Hint: | Look at the first equation: Solve for x.
Add 2 to both sides:
x = 2 + sqrt(2) or x - 2 = -sqrt(2)
Hint: | Look at the second equation: Solve for x.
Add 2 to both sides:
Answer: x = 2 + sqrt(2) or x = 2 - sqrt(2)
Answer:
28
Step-by-step explanation:
7×4=28 hope this help
B,D is the answer for your question
Answer:
More girls chose canoeing as their favorite outdoor activity than those who chose skiing.
More boys chose skiing as their favorite outdoor activity than girls.
There were more boys surveyed than girls.
More students chose camping as their favorite outdoor activity than the combined number of students who chose canoeing or skiing.
Step-by-step explanation:
The last answer:-
Number choosing camping = 81 and the number choosing canoeing or fishing = 35 + 45 = 80.