Answer:
Most likely a street
Step-by-step explanation:
depends on how big the track is
<span>This would be a bell curve with a z-score of greater than +2.00, since 3 minutes is exactly two standard deviations greater than the mean of 2.00. Looking at a z-score table for the proportion of the curve that lies in the 1-tailed area greater than 2.00, we find that the value is .0228. This would be the probability that the conversation is over three minutes: 0.0228 or 2.28%.</span>
Give the 2 numbers variables,say x and y.
then they multiply to -225.this means xy=-225
they add to 16.this means x+y=16
y=16-x
substitute y=16-x onto xy=-225 to get x(16-x)=-225
then expand to get 16x-x^2=-225
rearrange to get a quadratic: x^2-16x-225=0
x=(16+(16^2-4*-225)^0.5))/2 or
x=(16-(16^2-4*-225)^0.5))/2
Answer:
x =6.0
The base is 6x = 35.8
The side is 3x = 17.9
Step-by-step explanation:
We can use the pythagorean theorem
a^2 + b^2 = c^2
(6x)^2 +(3x)^2 = 40^2
36x^2 + 9x^2 = 1600
Combine like terms
45x^2 = 1600
Divide each side by 45
45x^2 /45 =1600/45
x^2 =35.555555555
Take the square root of each side
sqrt(x^2) = sqrt(35.555555555)
x =5.96284794 = 6.0
The base is 6x = 6*5.9628479 =35.77708 = 35.8
The side is 3x = 3*5.9628479 =17.88854382= 17.9
Answer:
b) log8 4 + log8 a + log8 (b- 4) - 4 log8 c
Step-by-step explanation:
The given expression is log8 4a ((b - 4) ÷ c^4)
Here we have to use the quotient rule.
log(a/b) = log a - log b
log8 4a (b- 4) - log8 4a(c^4)
Using the product rule log(ab) = log (a) + log (b)
log8 4a + log8 4a(b-4) - log8 4a - log8 (c^4)
log8 4a(b - 4) - log8 (c^4)
log8 4a + log8 (b- 4) - 4 log8 c
Again using the product rule.
log8 4 + log8 a + log8 (b- 4) - 4 log8 c
So it is b.
Thank you.
