Answer:
Cost before tax = $25,665.57
Step-by-step explanation:
Given:
Costs of car = $27,449.80 including sales tax
Sales tax = 6.5%
We need to find cost of car before tax.
6.5% of car cost = 
Where x is the percentage value.
6.5% of car cost = 
6.5% of car cost = 
6.5% of car cost = 
The tax on the car is $1784.237.
So, the cost of the car before tax is.
Cost before tax = cost of car - cost of tax
Cost before tax = 27449.80 - 1784.237
Cost before tax = 25665.57
Therefore, the cost of the car before tax is $25,665.57
To find the angle of the helicopter, we are going to take advantage of the fact the the sum of the interior angles of a triangle is always 180°. Lets denote that angle with
, so:
Look what we have here: a angle of 90°, so our triangle is a right triangle.
Now, let
be the distance between Amanda and the helicopter. Using the law of sines:
Remember that sine of 90 ° is equal to 1, so:
We can conclude that the distance between Amanda and the helicopter is
2000 feet.
Answer:
(x − 5) (2x + 3)
Step-by-step explanation:
2x² − 7x − 15
Factor using AC method.
2 × -15 = -30
Factors of -30 that add up to -7 are -10 and 3.
Divide by 2 and reduce: -10/2 = -5/1, 3/2
The factors are x − 5 and 2x + 3.
(x − 5) (2x + 3)
Answer:
-1
Step-by-step explanation:
-7+b=-8
Add 7 to -8 which would then get -1
Answer: Surface area of a triangular prism = 2*Area of Base (triangle) + Perimeter of Base (triangle)*Height
Step-by-step explanation: The sum of the areas of all the sides of the triangular prism is equal to the surface area. Thus, if you add all the areas of the sides you will get the surface area. The equation above is a faster way to do it.
