B and C for the first two
90/2=45
45/3=15
15/3=5
90=2*3*3*5=2¹*3²*5¹
Answer:
<em>40%</em>
Step-by-step explanation: <em>2 divided by 5 is 0.4 so that is 40%</em>
Answer:
8² = 4² + 5² - 2(4)(5) cos(P)
which is the third option
Explanation:
The general rule of cosine is:
a² = b² + c² - 2bc*cos(A)
In our triangle:
a is substituted by p = 8 cm
b is substituted by n = 4 cm
c is substituted by m = 5 cm
A is substituted by P which we want to find
Replace the variables in the general equation with the givens as follows:
p² = n² + m² - 2mn*cos(P)
8² = 4² + 5² - 2(4)(5) cos(P)
Hope this helps :)
