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anygoal [31]
3 years ago
13

Please help asap plz

Mathematics
2 answers:
butalik [34]3 years ago
3 0

Answer:

im think its 20 and 39 im not sure tho

Step-by-step explanation:

noname [10]3 years ago
3 0

Answer:

x = 16

y = 10.2

Step-by-step explanation:

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(a). Consider the parabolic function f(x) = ax² +bx+c, where a ±0, b and care constants. For what values of a, band c is f
ki77a [65]

Information about concavity is contained in the second derivative of a function. Given f(x) = ax² + bx + c, we have

f'(x) = 2ax + b

and

f''(x) = 2a

Concavity changes at a function's inflection points, which can occur wherever the second derivative is zero or undefined. In this case, since a ≠ 0, the function's concavity is uniform over its entire domain.

(i) f is concave up when f'' > 0, which occurs when a > 0.

(ii) f is concave down when f'' < 0, and this is the case if a < 0.

In Mathematica, define f by entering

f[x_] := a*x^2 + b*x + c

Then solve for intervals over which the second derivative is positive or negative, respectively, using

Reduce[f''[x] > 0, x]

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5 0
2 years ago
A point has length. true false user: lines have endpoints. true false
Katarina [22]
False
false

point is 1 dimentional

lines are infinite

fals for both
3 0
3 years ago
Which equation correctly applies the distributive property?
Murrr4er [49]

Answer:

the last one

Step-by-step explanation:

In the last one, it takes all of the numbers in the one parentheses and distributes it to the 0.5.

Look at the picture. (sorry for the messy writing)

3 0
3 years ago
If $20,900 is invested at an interest rate of 8 percent per year, find the value of the investment at the end of 5 years for the
Katena32 [7]

Answer:

annual

Step-by-step explanation:

You make a single deposit of $100 today. It will remain invested for 4 years at 8% per year compounded annually. What will be the future value of your single deposit at the end of 4 years?

6 0
3 years ago
Please help thank youu
rodikova [14]
Y results from something being multiplied by x , and the values are always proportional to one another. Notice that putting these points into a ratio of x-value to y-value results in 1:3 as a simplified version. So, the constant of proportionality is what x is being multiplied by to get y . In this case, it is 3 . PLEASE MARK A THE BRAIN THINGY
8 0
3 years ago
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