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dangina [55]
3 years ago
10

Can someone help pls

Mathematics
1 answer:
GREYUIT [131]3 years ago
4 0
Axis of symmetry (blue line): x= -2
X intercepts (green dots): (-3,0), (-1,0)
Y intercept (black dot): (0,9)
Vertex (red dot): (-2,-3)

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I think I know this much so far for A (but I could be wrong):
Eduardwww [97]
Part A. You have the correct first and second derivative.

---------------------------------------------------------------------

Part B. You'll need to be more specific. What I would do is show how the quantity (-2x+1)^4 is always nonnegative. This is because x^4 = (x^2)^2 is always nonnegative. So (-2x+1)^4 >= 0. The coefficient -10a is either positive or negative depending on the value of 'a'. If a > 0, then -10a is negative. Making h ' (x) negative. So in this case, h(x) is monotonically decreasing always. On the flip side, if a < 0, then h ' (x) is monotonically increasing as h ' (x) is positive.

-------------------------------------------------------------

Part C. What this is saying is basically "if we change 'a' and/or 'b', then the extrema will NOT change". So is that the case? Let's find out

To find the relative extrema, aka local extrema, we plug in h ' (x) = 0
h  ' (x) = -10a(-2x+1)^4
0 = -10a(-2x+1)^4
so either
-10a = 0 or (-2x+1)^4 = 0
The first part is all we care about. Solving for 'a' gets us a = 0. 
But there's a problem. It's clearly stated that 'a' is nonzero. So in any other case, the value of 'a' doesn't lead to altering the path in terms of finding the extrema. We'll focus on solving (-2x+1)^4 = 0 for x. Also, the parameter b is nowhere to be found in h ' (x) so that's out as well. 
6 0
3 years ago
Need help with this asap
dem82 [27]

Answer:

I cant lie I don't know this answer

4 0
3 years ago
Read 2 more answers
MATH <br><br>Please heeeeeeeeeeeelp​
Lelechka [254]

Answer:

3.002 * 10⁵

Step-by-step explanation:

3 * 10⁵ = 3 * 10³ * 10² = 3000 *10²

3 * 10⁵ + 2* 10² = 3000 * 10² + 2*10²

                        = (3000 + 2) * 10²

                       = 3002 * 10²

                       = 3.002 * 10³ * 10²

                      = 3.002 * 10⁵

6 0
3 years ago
SAT practice: Find the solution (x,y) to the system of equations below, what is the value of x-y (show work)
Zanzabum

7x + 3y = 8 \\ y = 2x -  \frac{5}{3}

Substitute the given value of x into the first equation

7x + 3( 2x-  \frac{5}{3} ) = 8

To solve for x distribute 3 though the parentheses

7x + 6x - 5 = 8

Collect like terms

13x - 5 = 8

Move the constant to the right-hand side and change its sign

13x = 8 + 5

Add the numbers

13x = 13

Divide both sides of the equation by 13

x = 1

Now, Substitute the given value of x into the second equation

y = 2x -  \frac{5}{3}

Plug in the value of x in the equation i.e. 1

y = 2 \times 1 -  \frac{5}{3}

Any number multiplied by 1 results in number itself

y = 2 -  \frac{5}{3}

Calculate the difference

y =  \frac{1}{3}

The possible solution of the system is the ordered pair (x,y)

(x,y)=(1, \frac{1}{3} )

6 0
3 years ago
Зr + 12p - 7 - Зр<br> What is the answer?
Sergeeva-Olga [200]

Answer:

9p+3r−7

Step-by-step explanation:

=3r+12p+−7+−3p

Combine Like Terms:

=3r+12p+−7+−3p

=(12p+−3p)+(3r)+(−7)

=9p+3r+−7

7 0
3 years ago
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