Hello from MrBillDoesMath!
Answer:
r = 5
Discussion:
2r + 6 + 3r = 31 => (Given)
(2r + 3r) + 6 = 31 => (combine r terms). Subtract 6 from both sides
5r + 6 -6 = 31 - 6 = 25 =>
5r = 25 =>
r = 25/5 = 5
Regards,
MrB
The reverse effect of another operation
ex multiply - division
Answer:
do u have answer choices or did u come up with anything that can help me out a lil bit
Step-by-step explanation:
mrk me brainliest plz
Answer:
79 degrees
Step-by-step explanation:
A. Sum of interior angles is where you take two of the interior angles (ones inside the triangle) and add them to get the opposite angle outside the triangle, D in this case. So 41 + 38 = 79 degrees
B. a straight line has 180 degrees, you are given the angle next to D to be 101, so you find the difference between 180 and 101 to find D, so 180-101 = 79 degrees
Equation:
j(x) = -3x² - 5
Which part of the equation tell us that the graph opens downward?
<h3>
Solution: </h3>
Here see that the leading coefficient of x² which is (-3) is less than 0, meaning negative. a < 0 Hence, the graph will open from downwards.