9514 1404 393
Answer:
x ≈ 4.2
Step-by-step explanation:
The relevant trig relation is ...
Tan = Opposite/Adjacent
tan(72°) = b/x = 13/x
x = 13/tan(72°) ≈ 4.223956
Rounded to the nearest tenth, x ≈ 4.2.
Answer: he is 11 years old
Step-by-step explanation: 44 divided by 4 = 11
Let x represent the smaller angle.
Let y represent the larger angle.
The problem states that the larger angle measures five degrees more than four times the measure of the smaller angle.
With this given information, we can create the following equation.
Also, they a supplementary, meaning that they add up to 180. We can create another equation.
Since we have two linear equations and we want to find the solution, we have a system of linear equations. Let's solve this system by using the substitution method.
Substitute
into
After substituting, you get
Now, combine the x's
Subtract both sides by 5
Divide both sides by 5.
Now, we can solve for y using the equation
since we know the value of x.
Subtract both sides by 35.
The smaller angle has a measure of 35 degrees and the larger one has a measure of 145 degrees. Have an awesome day! :)
So that is 3.5 times 10000 or 35000
then it is squared so 1,225,000,000 but to four significant digits it would be 1225 times 10^6 or on a online test 1225e+06
Answer:
Robert earned $23 for each lawn that he mowed.
Step-by-step explanation:
Identify what you know:
1) Robert earned a total of $184 dollars for mowing 8 lawns
2) He was paid the same amount for mowing each of the eight lawns.
So, let's write our equations, where x equals the total that he was paid for one lawn.
$184/8 = x
OR
x times 8 = $184
We can reverse engineer both problems!
$184 divided by 8 = $23