Answer:
x=8
Step-by-step explanation:
The angles shown are vertical angles and vertical angles are equal
13x+19 = 16x -5
Subtract 13x from each side
13x-13x+19 = 16x-13x -5
19 = 3x-5
Add 5 to each side
19+5 = 3x-5+5
24 = 3x
Divide by 3
24/3 = 3x/3
8 = x
Answer:
1. 60
2. true
3.false
Step-by-step explanation:
1. All the angles in an equilateral/equiangular triangles have the same side length and the same angle, since all the angles in a triangle add up to 180 degrees, 180 divided by 3 is 60
2 and 3. An isosceles is a triangle with two equal sides. The angles opposite the equal sides are also equal. An equilateral triangle has sides of the same length.
Unfortunately, you haven't shared the instructions for this problem. My guess is that you are to evaluate <span>P(x)= x^3+4x^2-8x-6 for x = a = -2.
If that's the case, then
P(-2) = (-2)^3 + 4(-2)^2 - 8(-2) - 6. This simplifies to:
= -8 + 16 + 16 - 6 = 18 (answer)</span>
Answer:
-2073.5
Step-by-step explanation:
We will have to solve this question using step by step procedure
So let's solve
(21/7+316)(5/2+4-13)
(21/7+316)
Lcm is 7
21+2212/7
2233/7
(5/2+4-13)
Lcm is 2.
5+8-26/2
13-26/2
-13/2
Back to the question
(2233/7)(-13/2)
-29029/14
-2073.5
Answer:
Step-by-step explanation:
Presuming represents the length of the box (which you should have specified), your volume function:
is correct.
V(x)=-x^3+33x^2-90x=0
Obviously, in order to have a box, all three dimensions must be positive numbers.
Since the height is 3 less than the length, the length must be greater than 3 so that the height will be greater than zero. Since the sum of length and width is 30, the length must be less than 30. Hence, the possible range of values for is
If you know enough calculus to be able to take the derivative of this function, set the first derivative equal to zero and solve. You will obtain two possible extrema. Only one of these extrema will lie in the the acceptable range of values,
If you don't know the Calculus, then the best you can do is to graph the function and eyeball it.