You have to use exponents before you have to use the paratheses.
8 + 3(7² × 4) - 5 ÷ 2
8 + 3(49 + 4) - 5 ÷ 2
8 + 3(53) - 5 ÷ 2
8 + 159 - 5 ÷ 2
167 + 5 ÷ 2
162 ÷ 2
81
Answer:
C. 84
Step-by-step explanation:
To make it easier to find the total area, you should break the shape into two parts, a triangle and a rectangle.
Step 1:
To find the rectangle area we now we have to multiply <em>l * w</em>
In this case, the length is 12 and the width is 4 so 12*4 = 48
Step 2:
To find the area of the triangle you have to do the formula A = 1/2bh where b is the base 12, and h is the height (10-4) 6. So 6*12 = 72 and 72/2 is 36
Step 3:
Last you need to add the area of both the rectangle and the triangle to get the total area of 84 sq meters
Have a good day!!!
Answer:
I think your answer should be 5x and -5x
Answer:
The city and highway average are about the same
Step-by-step explanation:
The m/slope of this graph tells us the relation between fuel used and miles traveled.
So, by looking at the slope, we can tell the average miles per liter for driving.
Because the slope of this graph stays fairly consistent (the slope stays the same throughout the entire graph, and there is no sudden change in the miles per liter ratio), we know that the fuel usage does not change.
So, we don't even have to calculate the slope for each separate section, we know that the usage is about the same (from simply looking at the graph).
(Also, if you specifically wanted to calculate slope to confirm, like I just did, you could do this too. Without even having to calculate the slope itself, you can find one point in each section to judge. The points I used were (2, 10) [10m traveled with 2 liters, meaning 5m traveled with 1 liter] and (10, 50) [50m traveled with 10 liters, 5m traveled with 1 liter])
-10 and -2 because they are both 4 units away