The correct answer is 14yds
Answer:
Step-by-step explanation:
<u>Given</u>
<u>Cross multiply and solve for x:</u>
Answer:
19.0
Step-by-step explanation:
The mnemonic SOH CAH TOA reminds you of the relationship ...
Cos = Adjacent/Hypotenuse
cos(38°) = 15/w
w = 15/cos(38°) ≈ 19.035
The length of the missing side is about 19.0.
Answer:
Step-by-step explanation:
We group the number 5:
5(x² + 3x + 2.25)
Now inside the brackets we'll take the square root of the coefficient of the x and the square root of the last number, then remove the square from the x and write it as a sum:
5(x+1.5)²
What's the idea behind this?
Well, remember that when you have something in the form:
(a+b)²
It actually means:
a² + 2ab + b²
In our case a was x, and b was 2.25. For bringing it into the shorter form we have to take the square root of a and b.
Sorry if you don't understand. Tell me if you need help to get the xoncept better.
