If its negative to negative the number will be positive if its two positives I will be positive and the higher number of the problem decides weither its positive or negative then u add like normal
Question 1: 6 3/4 so option b
Answer:
Step-by-step explanation:
The area for a triangle is
Our base is given as x, the height is given as 1 more than 6 times the base which looks like this: 6x + 1. We know that the area is 13, so filling in everything:
We can get rid of the denominator of 2 by multiplying it on both sides to get:
and simplifying a bit:
Now we can move over the 26 and put the expression into standard quadratic form by setting it equal to 0:
which is choice C
Answer: Substitution Property
Think of "substitute" as in replacement. For example, your substitute teacher is a (<span>temporary) </span>replacement for your current teacher. In this case, we're replacing "m4" with "20 degrees".
<span>So,Given that you have A = 23 degrees , B = 21 degrees ,
and side a = 42.8, we find the angle C and the remaining sides of the triangle to be as follows:
Calculating for C = 180 degrees - ( A + B ).
C = 180 - 44 = 136
a / sin A = b / sin B = c / sin C
b = a sin B/ sin A = 42.8 sin 21 / sin 23 = 39.3
c = a sin C/ sin A = 42.8 sin 136/ sin 23 = 76.1
42.8/sin 23 = 109.5
39.3/sin 21 = 109.7
76.1/sin 136 = 109.6
The correct answer is ( c ). C = 136, b = 39.3 , and c = 76.1.</span>
