I would say the answer is B 9, 40, and 42
<h3>How many square feet of carpet should she order?</h3>
<h3>She needs to buy 9×12 feet of Carpet</h3>
Answer:
True
m∠T = 40.4°
Step-by-step explanation:
We know all the sides of the triangle but we do not know any of its angles.
To find out if the angle T = 40.4 ° we use the cosine theorem.
According to the cosine theorem:
Where is the angle between a and b.
In this case:
Then we clear α from the formula and verify that it is equal to 40.4 °
Y =4
if you replaced y with 4 the equation would be true...
it's easy math
- hope you have a nice day...