Substitution:
u = - π x
d u = - π d x
d x = - d u / π
----------------------
u = - π x
d u = - π d x
d x = - d u / π
----------------------
ASAP!! Please help me. I will not accept nonsense answers, but will mark as BRAINLIEST if you answer is correctly with solutions
.
1 answer:
You might be interested in
Answer:
Step-by-step explanation:
Quadrant II is the top left cornered <em>square</em>, so this coordinate is the one you would pick.
I am joyous to assist you anytime.
Answer:
The expression x-0.3x represents the total cost of Minecraft Dungeons.
Step-by-step explanation:
Given that:
Percentage of Minecraft sale = 30% off
Cost of Minecraft Dungeons = x
Amount of discount on Minecraft Dungeons = 30% of x
Amount of discount =
Amount of discount = 0.3x
Total cost of Minecraft Dungeons = Total cost - Discount
Total cost of Minecraft Dungeons = x - 0.3x
Hence,
The expression x-0.3x represents the total cost of Minecraft Dungeons.
The answers are 3.19 or -2.19.
In order to complete the square, you must first get the constant to the other side of the equation. WE do that by adding 7 to both sides.
x^2 - x - 7 = 0
x^2 - x = 7
Now we must take half of the x coefficient (-1), which would be -.5. Then we square it and add it to both sides. This is the second step to any completing the square problem.
x^2 - x = 7
x^2 - x + .25 = 7.25
Now that we have done that, the left side will be a perfect square so that, we can factor it.
x^2 - x + .25 = 7.25
(x - .5)^2 = 7.25
After having done that, we can take the square root of both sides
(x - .5)^2 = 7.25
x - .5 = +/-
Now we can take the value of that square root and solve.
x - .5 = +/-
x - .5 = +/-2.69
x = .5 +/- 2.69
And with the + and - both there, we need to do both to get the two answers.
.5 + 2.69 = 3.19
.5 - 2.69 = -2.19
Answer:
154.10 Feets
Step-by-step explanation:
Given the following :
Height (h) of cliff = 320 feet
Angle of depression of near side = 16.5°
Angle of depression of far side = 10.5°
Using trigonometry :
We can obtain x and y as shown in the attached picture :
Tanθ = opposite / Adjacent
Adjacent = height of cliff = 320 Feets
For the near side :
Tanθ = opposite / Adjacent
Tan (16.5°) = x / 320
0.2962134 = x / 320
x = 0.2962134 * 320
x = 94.788318 Feets
For the far side :
Tanθ = opposite / Adjacent
Tan (10.5°) = x / 320
0.1853390 = x / 320
x = 0.1853390 * 320
x = 59.308494 Feets
Length of island = (59.308494 + 94.788318) feet
= 154.10 Feets
