Open Question: Log(small 2)(x+2) + log(small 2)(x-2) = 5 (What did they do to the 5 on the right side to make it 32)?
You got it wrong
log2(a) + log2(b) = log2(ab) = c
ab = 2^c where log2(a) = log base of a
So
log2(x+2) + log2(x-2) = 5 = log2{(x+2)(x-2)}
(x+2)(x-2) = 2^5 = 32
x^2 - 4 = 32 --> x^2 = 36 --> x = +/-6
Note if x = -6 --> x^2 - 4 = (-6)^2 -4 = 36 -4 =32
18:50 |
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Open Question: A peanut butter jar in the shape of a right circular cylinder is 4 in. high and 3 in. in diameter and sells fo?
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Open Question: With True Evidence and Technology today Man Never Walk on the Moon !! The Guy In Montreal is Right!!?
man did walk on the moon. you think they faked it? If it was fake the russans would of know and would of told everyone it was fake. and the russans hated us in the 70.
so you are very wrong
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Open Question: 9. A 2 kg car moving towards the right at 4 m/s collides head on with an 8 kg car moving towards the left at 2?
9. A 2 kg car moving towards the right at 4 m/s collides head on with an 8 kg car moving towards the left at 2 m/s, and they stick together. After the collision, the velocity of the combined bodies is
A. 0
B. 0.8 m/s towards the right.
C. 0.8 m/s towards the left.
D. 2.4 m/s towards the right.
E. 2.4 m/s towards the left.
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Open Question: Tried to integrate x^4e^(-x^4), and dont know if I'm right?
It seems impossible to integrate manually, at least to me. According to WolframAlpha, you'll end up with a gamma function in the integration.
Remember, when you substitute, you have to change the variable of respect as well. Simply substituting u = x^4 won't magically change dx to du.
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Open Question: how to find the surface area of a right triangular prism?
Home >All Categories > Science & Mathematics >Mathematics >Open Question
Rawr Yourdead Member since:March 22, 2011Total points:119 (Level 1)k, so the prism has 2 congruent triangular bases and 3 rectangular faces.
how do i find the surface area of a right triangular prism? i would give you the lengths but that wouldnt make sense cuss i dont have a picture of the problem,Answer QuestionBe the first to answer this question.
how do i find the surface area of a right triangular prism? i would give you the lengths but that wouldnt make sense cuss i dont have a picture of the problem,Answer QuestionBe the first to answer this question.
23:35 |
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Open Question: Math Question...first right answer gets the 10 points!?
point-slope form:
y-7 = 9(x-9)
y - 7 = 9x - 81
y = 9x - 74
y = 9x - 74 is your answer
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Open Question: A right pyramid has an equilateral base of side4cm.Find the height of the pyramid under given condition:?
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