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Nookie1986 [14]
3 years ago
12

10 POINTS!!! FULL ANSWER IN STEP BY STEP FORMAT!! ALL PARTS A, B, C, D, E

Mathematics
1 answer:
mihalych1998 [28]3 years ago
8 0
The first thing to do is to get the graph. That's below. That is a very wicked looking graph. I'm not sure what happens at 0. I'm not sure it is continuous at 0. That's something to make a fuss over because x = 0  is one of the x intercepts.

y = - x^(2/5)(x(5/5) + 7).
y = - x^(2/5)(x + 7)
So one of the x intercepts is 0 and the other one is -7.

The reasons are known because the factors can be equated to 0. It does not look to me like there is exact symmetry. There is a local minimum however at what the graph says is (-2,-6.5 or so)
You could differentiate that to find the exact point, but you are not asked for that.

So the domain is from -∞ to zero and 0 to plus ∞ I think you have to exclude 0 even though it is an x intercept. 

The graph decreases from -∞ < x < -2
It increases from -2 < x < 0
It decreases form 0< x < ∞

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Solve for z. 12=15(z-1/5)
OLga [1]

Answer:

z = 1   i hope this helps!   :)

Step-by-step explanation:

given 12 = 15(z - 1/5)

distribute the 15 to both the z and the - 1/5

12 = 15z - 3

add 3 to both sides

15 = 15z

divide both sides by 15

1 = z

flip the equation around so the variable is on the left

z = 1

6 0
3 years ago
What is the equation for a circle with center (2, -3) and radius of 6?
torisob [31]
The general formula for a circle is:
x^2 + y^2 = r^2

Since the r^2 = 36, we know the first two options are incorrect 

If the circle's centre is at (2, -3), the numbers being squared should be the negative of the coordinate

So, the final answer is (x-2)^2 + (y+3)^2 = 36
4 0
3 years ago
Juan plans to use strategies to find 12x380 shows a strategy he could use
Reptile [31]

Answer:

3 x 4 x 380

Step-by-step explanation:

The correct strategy that he could use would be

3 x 4 x 380

This is basically splitting up the 12 into two numbers whose product equals 12. This shrinks the numbers and makes it easier to multiply the 380. Since it is easier to multiply 380 by 4 as opposed to 12. This strategy will still give you the same result as 12x380 and both will give you a product of 4,560

8 0
3 years ago
Find the area for this
Irina-Kira [14]

The formula for area of a hexagon is:

Area = 1/4 * 6 * s^2 * cot(PI/6) , where s is the length of a side.

Area = 1/4 * 6 * 8^2 * cot(PI/6) = 166.276 square cm. ( Round the answer as needed).

4 0
3 years ago
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sergeinik [125]

Answer:

No.

Step-by-step explanation:

y=4x

4=(2)

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3 0
2 years ago
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