Answer:
Step-by-step explanation:
So first we need to make sure we know the trig identities to solve this problem.
Here we only have two legs of the triangle, so we will need to use the Pythagorean Theorem a² + b² = c² to solve for the missing leg, the hypotenuse in this case.
- Solving for the hypotenuse, c, we get
- Here a = 20 and b = 21, so plugging in these values to the equation we get:
Now we can use the trig identities to figure out the missing values for the problem
Answer:
Step-by-step explanation:
Here you go mate
Step 1
16x^2-6x-7 Question
Step 2
16x^2-6x-7 Factor
answer
(2x+1)(8x-7)
Step-by-step explanation: 1 will now become a 2, so the answer is 1.2.1,
There are two steps to this problem. The first step is to make an equation for the cost of each company. The cost of each one involves 2 variables. However, we can ignore the number of days since the question asks for per day.
CostA = 90 + .40(miles)
CostB = 30 + .70(miles)
We want to know when A is a better deal or when A costs less. That is when CostA < CostB. We can then substitute the right sides of our equations into the inequality. This will give:
90 + .40(miles) < 30 + .70(miles) This is where we will now begin to solve for the number of miles.
-30 -30 Subtract 30 from both sides.
60 + .4(miles) < .7(miles) Simplify
-.4(miles) -.4(miles) Subtract .4(miles) from both sides
60 < .3(miles) Simplify
/.3 /.3 Divide both sides by .3
200 < miles Simplify
So for A to cost less the number of miles must be greater than 200.
