The formula for area of a triangle is A= bh/2
So 8•5/2 is 40/2= 20
Then 13•19/2 is 247/2= 123.5
The answer to 7/6 divided by 8/7 would be 1 1/48
SOLUTION
Given the question in the image, the following are the solution steps to answer the question.
STEP 1: Explain the formula to use
Using the cosine rule which states that:

STEP 2: Write the given sides

STEP 3: Find the value of z

Hence, the indicated length is 4.0
The number 1 goes at the end of the number line because it represents 1 whole. Hope this helps c;
The denominator of a fraction cannot be zero.Therefore in h(x) = f(x)/g(x), g(x) cannot equal zero, x + 6 cannot equal zero, x cannot equal -6. The domain of h(x) is ℜ - {-6}.
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.