7.5*.2=1.5
- 1.5= 6.5 w/ 20% off
6.5*0.0525=0.34125- rounded= .34+6.5=
$6.84
Hope this helps!!!!
The number in the hundredths place is the 6. Tens, Hundredths, Thousands..etc..
But, on the right side of the decimal, 5 is in the hundredths.
<span>The slope is the differential of the function.
Recall, if y = x^n, (dy/dx) = nx^(n-1).
y=</span><span>x^4-20x^2+64; x = -1. To differentiate this, we do it for each term.
(dy/dx) = (4)(x^(4 -1)) - (2)(20x^(2-1) + 0*64x^(0-1) (Note 64 = 64x^0, x^0 =1)
= (4)x^(3) - 40x^(1) </span><span><span>+ 0
= 4x^3 - 40x^1.
</span>(dy/dx) = </span><span><span><span> 4x^3 - 40x</span>. Note at x = -1.
</span>
(dy/dx), x = -1, = 4(-1)^3 - 40(-1)
<span> = -4 + 40 = 40 - 4 = 36.
</span><span>
Slope at x = -1 is 36.
</span>Cheers.</span>
<h3>
Answer: C) 2/7</h3>
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Explanation:
Initially there are 15+18+12 = 45 marbles total. He selects 3 marbles (2 reds, 1 blue).
Assuming he doesn't put the three marbles back, this means there are now 45-3 = 42 marbles overall. The yellow count hasn't changed since the first three marbles do not involve yellow. We have 12 yellow out of 42 which leads to the fraction 12/42 to represent the probability of getting yellow.
Reduce 12/42 to get 2/7. You divide both parts by the GCF 6.
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Side note: if he did put the marbles back, then the probability of getting yellow would be 12/45 = 4/15
Answer:
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Step-by-step explanation: