Divide by 20 to put the equation into intercept form.
.. x/4 +y/(-10) = 1
The x-intercept is 4.
The y-intercept is -10.
Answer:
, 
Step-by-step explanation:
Part a) Find the sin(A)
we know that
In the right triangle ABC
----> the sine of angle (A) is the opposite side angle (A) divided by the hypotenuse
substitute the values

Part b) Find the cos(A)
we know that
In the right triangle ABC
----> the cosine of angle (A) is the adjacent side angle (A) divided by the hypotenuse
substitute the values

Your answer is D for your purposes
Work:
Multiply b and 5
Multiply b and 1
The b just gets copied along.
5*b evaluates to 5b
Multiply b and 6
Multiply b and 1
6*b evaluates to 6b
6*b-10 evaluates to 6b-10
Multiply 5b by 6b-10
Multiply 5b by each term in 6b-10 term by term.
This is the distributive property of multiplication.
Multiply 5b and 6b
Multiply the b and b
Multiply b and b
Combine the b and b by adding the exponents, and keeping the b, to get b²
5b × 6b =
Multiply 5b and -10
Multiply b and 1
5b × -10 = -50b
5*b*(6*b-10)
***The final answer is 30b²-50b***