Answer:
Part 1) Greta's right, the triangle is incorrect.
Part 2) 
Part 3) The height of the tree is 
, Trey’s house is not at risk
Step-by-step explanation:
Part 1) we know that
In the right triangle of the figure
Compare
therefore
The triangle is not correct
Because
The side adjacent to the 30 degree angle should be 
and the side opposite the 30 degree angle should be 
Part 2)
Let
x--------> the distance from the airplane to the SCCA (hypotenuse of the right triangle)
we know that
Part 3)
Let
x--------> the height of the tree
we know that
therefore
Trey’s house is not at risk
Answer: 
Step-by-step explanation:
Given : Sample size : n= 36 , which is a large sample (n>30) so the test applied here is z-test.
Significance level : 
Using Standard normal table , Critical value : 
Sample mean : 
Standard deviation: 
The confidence interval for population means is given by :-
i.e.
Hence, the 95 percent confidence interval for the fill rate =
Answer:
x=1
Step-by-step explanation:
Move the constant to the right side of the equation and change its sign to the opposite. the constant in this equation is +2. the new equation looks like this: 5x=7-2. After subtracting on the right (7-2) the new equation should be 5x=5. divide both sides of the equation by 5. the answer is x=1
Hello :
<span>2y + 3 = 0
y = -3/2
y +3/2 = 0(x-0) satandard slope form when : m = 0
the line is parallal a x -axis</span>
Answer: 3x + 4y = - 26
Explanation:
1) the standard form is Ax + By = C
2) given: y + 5 = - (3 / 4) (x + 2)
3) multiply both sides by 4:
4y + 20 = - 3 (x + 2)
4) expand the parenthesis using distributive property:
4y + 20 = -3x - 6
5) transpose -3x and 20
4y + 3x = - 20 - 6
6) combine like terms
4y + 3x = - 26
7) rearrange:
3x + 4y = - 26
That is the standard form of the linear equation given.
