Answer:a
Step-by-step explanation:
These are 3 questions and 3 answers.
1) Question 18
Answer: 3
Explanation:
i) Equation given: 3x - y = - 4
ii) Transform to slope-intercept form: y = mx + b, where m is the slope.
y = 3x + 4
iii) Then, the slope is m = 3.
2) Question 19
Answer:
17 horizontal layers
43 bricks are left
Explanation:
i) Data:
number of bricks: 5500
number of bricks per horizontal layer: 321
ii) Calculations:
Divide the number of bricks by the number of bricks per horizontal layer: you need both the quotient and the remainder.
5500 ÷ 321 = 17 and 43 are left.
3) Question 20
Answer: indefinite
Explanation:
The line is vertical.
All the vertical lines have indefinite slopes.
That is because the slope is given by:
slope = change in y / change in x.
But x is constant, which means that the change in x is zero. And, since the division by zero is not defined, the slope is not indefinite.
Answer:
47 rows
Step-by-step explanation:
To find the amount of needed rows, we will use the math operation division. We will take the total and divide it by the amount in each row.
846/18=47
To seat 18 people in each row, you will need 47 rows.
Answer:
First photo, I think they are all the same
Second, see below
Step-by-step explanation:
<u>Numbering is by the numbers next to the problem, not the order of the photos</u>
(2) Biggest area
[] Find alllll the areas and compare! Area is base x height divded by 2
[] A
2 x 4 / 2
8 / 2
4
[] B
2 x 4 / 2
8 / 2
4
[] C
2 x 4 / 2
8 / 2
4
[] D
2 x 4 / 2
8 / 2
4
Now, I think this is a trick question and they are all the same areas. I am not 100% sure, but if you do the math that is what you get :)
(1) Drawing heights
[] The height is from the middle of the base to the point across. For the one on the left you would find the of the base and draw a straight line into the corner across from it at the bottom right.
[] The one on the right would be the same, but it would go into the narrower corner on the top
(Hopefully this helps and is correct! Have a nice day :D)