Answer:
B
Step-by-step explanation:
The line on the left has a negative slope of - 1 and a y- intercept at 2
The line has a closed circle at x = 1, thus
- x + 2 for x ≤ 1
The line on the right has a positive slope of 1 and a projected y- intercept at 1
The start of the line has an open circle at x = 1 indicating it cannot equal 1, thus
x + 1 for x > 1
The definition for the function is B
Answer:
-1
Step-by-step explanation
Raising -1 to an odd power gives us -1, while raising -1 to an even power gives us (positive) 1. Because 2009 is odd, the answer is -1. The other answer choices are there to confuse you.
Hello! So Brian is 6 feet tall and casts a 4 foot shadow and the tree’s shadow is 20 feet. To find the height of the tree, we can write and solve a proportion. Set it up like this:
6/4 = x/20
This is because we are looking for the height of the tree, and having it set up like this will help us get to the right answer. Let’s cross multiply. 6 * 20 is 120. 4 * x is 4x. That simplified to 120 = 4x. Now, divide each side by 4 to isolate the x. 4x/4 cancels our. 120/4 is 30. Let’s cross multiply to check out answers. 6 * 20 is 120. 30 * 4 is 120. 120 = 120. There. x = 30. The tree is 30 feet tall.
Step-by-step explanation:
1. Right angled triangle , scalene triangle
2. isosceles triangle, obtuse angled triangle
3. equilateral triangle
4. right angled triangle, isosceles triangle
5. scalene triangle, obtuse angled triangle
6. scalene triangle, acute angled triangle
Answer:x=-2.30
Step-by-step explanation:
6.95x+16.2-2.36x=3.2x+13
6.95x-2.36x+16.2=3.2x+13
4.59x+16.2=3.2x+13
4.59x-3.2x+16.2=13
1.39x+16.2=13
1.39x+16.2-16.2=13-16.2
1.39x=-3.2
1.39x÷1.39=-3.2÷1.39
X=-2.30