the average can be calculated by adding the scores together and then dividing by the number of scores.
we can set up an equation:
let x = test score needed on next test
(72+72+80+x)/4 = 71
multiply both sides by 4
72+72+80+x = 284
add like terms
224+x=284
subtract 224 from both sides
x=60
she will need a 60 for her average to be 71
Answer:
octopus
Step-by-step explanation:
thank you so muchhhhh
Answer:
it is 42069t
Step-by-step explanation:
Answer:
Step-by-step explanation:
Please use " ^ " to denote exponentiation: f(x)= 3x^2 - 6.
f(x)= 3x^2 - 6 can be factored (not solved) as follows:
f(x)= 3(x^ 2 -1) = 3(x - 1)(x + 1).
If you want a "solution," you must set f(x)= 3(x^ 2 -1) = 3(x - 1)(x + 1) = to 0 and solve the resulting equation for x: x = 1 and x = -1.
Answer:
becauz the cos .1sj sin A the thing cos
