How to solve this type of question
Answers
I find it convenient to get guidance from a graphing calculator.
f(x) is concave downard on the interval (-∞, 2).
_____
The derivative is
.. f'(x) = e^-x -x*e^-x
The second derivative is
.. f''(x) = -e^-x -(e^-x -x*e^-x)
.. = (x -2)*e^-x
This will be negative for x < 2.
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Use Gauss's approach to find the following sum (do not use formulas):5+11+17+23...+83
64.8 divided by 3.6
European car company advertises that theircar gers 9.4 Kilometers per liter of gasoline. Convertthis figure to miles per galllon
Answers
8 - 1.167 = 6.833.
8 times 6 = 48
1 times 6 = 6
then you subtract 11 from 48 = the answer is 37/6
48-11= 37 so then it is 37/6 do not simplify if it says not to but if you were to simplify you would divide 37 by 6 and get 6 with 1 remaining so the answer would be 6 1/6
I hope this helps!
Answers
Answer:
D
Step-by-step explanation:
For simplify the work we can start to factorise all the possibles expressions:
2x + 8.
8 is multiple of 2, so it can became
2(x+4)
x^2 - 16 this is a difference of two squares, so it can be rewritten as:
(x+4)(x-4)
x^2 + 8x + 16
we have to find two numbers whose sum is 8 and whose product is 16
the two number are 4 and 4
it becames:
(x+4)(x+4)
x+ 4 can‘t be simplified
if we look at the expression, we can find that x-4 appears at the numerator so
x^2 - 16 must be at numerator
but the second factor (x+4) doesn’t appear, so has been simplified. This situation can be possible only in the D option
in fact
(x+4)(x-4)/2(x+4) * (x+4)/(x+4)(x+4)
it became
(x+4)(x-4)/2 * 1/(x+4)(x+4)
(x-4)/2(x+4)
Answer:
Step-by-step explanation:
I got 100% on the test
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Answer: (x+8)(x-8)
Step-by-step explanation:
hope this helped :)
Answers
Answer:
$111, 000
Step-by-step explanation:
Morgage amount is given as $150, 000
Repayment plan
Every month, Angel pays $725
Therefore, every year, Angel repays $725*12=$8700
The plan goes for 30 years hence
Total amount paid after 30 years will be $8700*30=$261, 000
Interest =Total payment-morgage value
Interest paid=261000-150000=111000
Therefore, total interest is $111, 000
Answers
Answer:
Yes it changes the value of b.
Step-by-step explanation:
Natural log is log with base e = 2.71828.
From this we can conclude that value b when calculated with log to base 10 instead of natural log, value of b will change.
b. adding -4 to point b
c. adding -9 to point a
d. subtracting 14 from point c