Answer:
french
Step-by-step explanation:
convert both to percentage:
1. spanish:

2.French:

therefore Claire did better in the French test
Answer:
24
Step-by-step explanation:
6 divided by 5 times 20 =24
6/5*20= 24
So, Cot is negative in second and fourth quadrant.
So, tan(x+
)=-cot(x)
Option B
Answer:
-6
Step-by-step explanation:
hope this helps ;)
Answer:
No, it is not a right triangle.
Step-by-step explanation:
Given:
The sides of the triangle = 15 10 and 7
To Find:
Whether the triangle is a right triangle = ?
Solution:
According to Pythagorean theorem , In an right triangle the the sum of the squares of the two smaller sides must equal to the square of the larger side

where
a and b are the smaller sides
c is the larger side
Now from the given data, lets assume
a = 10 and b =7 and c =15
Substituting in the above equation we get,

100 + 49 = 225
149 = 225

So, the given triangle is not a right triangle.