First = x^2
Inner = -5x
Outer = +8x
Last = -40
It is correct!
Answer: See explanation
Step-by-step explanation:
The perimeter of a pentagon is gotten through the summation of its five sides. Let the first side be represented by x. Since each side of a pentagon is 10 cm greater than the previous side, then the sides will be:
First side = x
Second side = x + 10
Third side = x + 10 + 10 = x + 20
Forth side = x + 30
Fifty side = x + 40
Therefore,
x + (x + 10) + (x + 20) + (x + 30) + (x + 40) = 500
5x + 100 = 500
5x = 500 - 100
5x = 400
x = 400/5
x = 80
Therefore, the lengths will be:
First side = x = 80cm
Second side = x + 10 = 80 + 10 = 90cm
Third side = x + 20 = 80 + 20 = 100cm
Forth side = x + 30 = 80 + 30 = 110cm
Fifty side = x + 40 = 80 + 40 = 120cm
Answer:
The side opposite 30 is 9 ft.
The side opposite 60 is 15.59 ft.
Step-by-step explanation:
Below are pictures of how I got the answer.
I will provide steps to accompany each corresponding picture to further explain what I am doing.
1. This picture simply illustrates what the triangle looks like. The Hypotenuse is 18, as described in the problem.
2. I am showing how the sin will work. What is the opposite side and what is the hypotenuse. I picked this particular angle because it allow me to divide it by a number I already have, 18. I show that sin of 30 is 0.5
3. Now, we know what the side value is, 9. We can easily find the remaining side using Pythagorean theorem.
9^2 + y^2 =18^2
81 + y^2 = 324
y^2 = 243
y = 15.59
Step-by-step explanation:
Use the formula D2 = X^2 + Y^2 to find the squared distance between two points. If the two points have coordinates (-3, 7) and (1, 2), then the difference between 7 and 2 is 5, and so Y = 5. For example, if X = 4 and Y = 5, then D2 = 42 + 52 = 41. Thus, the square of the distance between the coordinates is 41.
y^2 means (y) x (y)
Answer:
252
Step-by-step explanation:
you multiply whatever numbers you have. HOPE THIS HELPED YOU!
btw can you brainlist me?