Answer:
a^2+3a+2
Step-by-step explanation:
(a+1)(a+2)
a(a+2)+1(a+2)
a^2+2a+a+2
a^2+3a+2
Looks more like Trig than Algebra II
They want us to apply the sum angle formula to 
5π/6 is 150°; I find it easier to think in degrees.
When the tangent of x is 3/4 that's a right triangle with opposite 3, adjacent 4 so hypotenuse 5. So a sine of 3/5 and a cosine of 4/5, both positive because we're told x is in the first quadrant.
The sine sum angle formula is


We know sin 150° = sin 30° = 1/2 and cos 150° = - cos 30° = -√3/2


Third choice
It's a decimal, but you can rewrite it as a fraction: -8/10 or -4/5 (simplified).
Answer:
The fraction of frame did Monica paint blue is
Step-by-step explanation:
Given as :
The area of square frame = A = 24 square inches
Monica paint
of one side of the frame blue
Let the measure of one side of frame = x
So, <u>From Area of square</u>
Area = side × side
Or, A = x × x
Or, x ² = 24
∴ x =
= 2
So, Measure of each side = x = 2
Now, As Monica paint
of one side of the frame blue
So, The painted part =
× 2
∴ The painted part =
× 
I,e The fraction of painted blue = 
Hence, The fraction of frame did Monica paint blue is
Answer
All this question is asking you to do is multiply 65 and 7. The 7 comes from the amount of days in a week. The product of these numbers is 455.
Maria did 455 sit-ups in a week.