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vredina [299]
3 years ago
11

Correct answer will get brainliest

Mathematics
1 answer:
Rufina [12.5K]3 years ago
8 0

\frac{f(x+h)-f(x)}{h}=\frac{(x+h)^2-3-(x^2-3)}{h}=\\\frac{x^2+2xh+h^2-3-x^2+3}{h}=\frac{2xh+h^2}{h}=\\\frac{h(2x+h)}{h}=2x+h

d)

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A farmer is tracking the number of soybeans his land is yielding each year. He finds that the function f(x) = −x2 + 20x + 100 mo
labwork [276]

Answer:

The farmer should expect to LOSE 10 pounds of soybeans per acre per year

Step-by-step explanation:

f(x)=-x^2 + 20x + 100

just find how many soybeans his land will yield (per acre) after 10 and 20 years:

After 10: 200 pounds of soybeans/acre

After 20: 100 pounds of soybeans/acre

Because 10 years have passed and they lost 100 pounds of soybean production per acre, the farmer should expect to lose 10 pounds of soybeans per acre per year (-10 pounds of soybeans per acre/year)

3 0
3 years ago
what is the solution to the system of equations shien on the graph? A.(0,5) B.(-2,1) C.(0,-1) D.(1,-2)
VLD [36.1K]

Solution is where the lines intersect. It's  is (-2 , 1)

Answer is B.(-2,1)

3 0
3 years ago
Can someone help me out please!
nalin [4]
If hugo has 1400 and on the 2 month it is c
3 0
3 years ago
How is x = 5 mathematically different from x > 5?​
Ivahew [28]

Answer:

in x>5 x is larger than 5

Step-by-step explanation:

x=5 means x is equal to 5

x>5 means x is greater than 5

7 0
3 years ago
Read 2 more answers
Use the unit circle to find sec (-90)
andreyandreev [35.5K]

Using the unit circle, you can visualise the secant as follows:

  1. Draw the vertical line passing trough (1,0)
  2. Extend the radius until it meets this line at point P
  3. The length of OP is the secant of your angle.

Since -90 means that the radius points downwards, it means that the radius is vertical as well, and thus it never meets the vertical line through (1,0).

Thus, the secant is not defined at -90.

In fact, if we switch back to the function notation, we can confirm this claim, since we have

\sec(x)=\dfrac{1}{\cos(x)}\implies \sec(-90)=\dfrac{1}{\cos(-90)}=\dfrac{1}{0}

which is undefined.

4 0
3 years ago
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