Answer: 68,719,476,736 different ways to answer the quiz.
Step-by-step explanation:
We have 20 questions.
4 of them, have two options (true and false)
and 16 of them have 4 options (a, b, c and d.)
The total number of different ways of answering this quiz is equal to the product of the number of options for each case, then we have:
Combinations = (2^4)*(4^16) = 68,719,476,736 different ways to answer the quiz.
A.
A-triangle may have only one right or only one obtuse, may have two or three acute angles but never just one
because a triangle has three angles the m= 180, the other twp angles have to be acute
Hope this helps
25a⁴ - 10a²z² - 8z⁴ <em>multiply 25*-8 = -200 to find factors (10*-20 = 200), (10 - 20 = -10)</em>
25a⁴ + 10a²z² - 20a²z² - 8z⁴ <em>factor the left two and right two terms</em>
5a²(5a² + 2z²) -4z²(5a² + 2z²) <em>one factor from each side should be identical</em>
= (5a² - 4z²)(5a² + 2z²)
Times all the dimensions on A by 3
