Solve for f. d = 16ef² A. f = ± √de/4e B. f = ± 4√de/e C. f = ± 4√de D. f = ± √de/16
@Vocaloid
try to think about what steps you need to take to isolate f for example, since f is being multiplied by 16 and e what do you need to do to "undo" this?
well the answer is A correct ?
yeah that's it
Solve for e. T = e^2/9 A. e = ± 3√T B. e = ± 3√T/T C. e = ± 9√T D. e = ±3T
any ideas?
the answer is C or B
the answer is B
T = e^2/9 start by multiplying both sides by 9, what do you get?
81
e^2/9 * 9 = ?
73
hint: notice how e^2 is being divided by 9 and then multiplied by 9 so they cancel out
ok that's true
so e^2 / 9 * 9 = e^2 e^2 = 9T solve for e
= 0
i'm still working on my calculations
hint: you have e^2 on one side so simply take the square root of both sides to isolate e e = sqrt(9T) and then simplify until it looks like one of the answer choices
T = e/9
what's the square root of 9?
3
OH I see
good, so sqrt(9T) = +/- 3sqrt(T) answer choice A
it's A
yes
The formula represents the distance x traveled by an object with acceleration a for t seconds. x = 1/2at^2 Solve for t. A. t = ±√x/2a B. t = ± 2ax^2 C. t = ± √2xa/a D. t = ± 1/2√ax
THE ANSWER IS C
yeah good
The formula gives the volume V of a right cylinder with radius r and height h. V=πr^2h Solve for r. A. r = √Vπh B. r = π√Vh C. r = √Vπh/h D. r = √Vπh/πh
THE ANSWER IS D
good
Solve for t. d = −16t^2 + 8t A. t = 1/4 ± 8√1 − d B. t = 8 ± √1 − d C. t = 1/2 ± 8√1 − d D. t = 1/4 ± √1−d/4
The Answer is D
is it correct cause i'm not sure
good
D is correct ?
yes
thank you Vocaloid once again for your help
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