Let's think of the rule of BIDMAS which stands for Bracket Indices Division Multiplication Addition and Subtraction
Without parentheses
8 + 30 ÷ 2 + 4 = 27
Because following BIDMAS, we would first do 30 ÷ 2 = 15
Then 8 + 15 + 4 = 27
We will need to put brackets at different places to equate the expression to 23 and 15 because the sum that is inside a bracket will have to be calculated first
(8 + 30) ÷ 2 + 4 = 38 ÷ 2 + 4 = 19 + 4 = 23
Here we first do the sum 8 + 30 = 38
Then the division 38 ÷ 2 = 19
Then the addition 19 + 4 = 23
8 + 30 ÷ (2 + 4) = 8 + 30 ÷ 6 = 8 + 5 = 13
Here we work out first the sum inside the bracket 2 + 4 = 6
Then we do 30 ÷ 6 = 5
And last 8 + 5 = 13
Answer:
Vertex: (-2, 0)
Axis of symmetry: x = -2
Direction of opening: Upwards
Min: 0
Y-intercept: 4
Step-by-step explanation:
Let us graph this line, and then pull out the details we need. <em>See attached</em>.
What do all of these different things mean?
<u>Vertex:</u> This is where the graph intercepts the axis of symmetry (x = -2, see below) and is at point (-2, 0) for this graph.
<u>Axis of Symmetry:</u> This is the line that the graph is symmetrical across. The "center" of the graph. Here, it is x = -2.
<u>Direction of Opening:</u> The direction that the graph is going/opening towards. In this case, it is upwards.
<u>Min:</u> The minimum (in this case) value, the lowest y-coordinate. This is 0 here.
<u>Y-intercept:</u> The point at which the line intercepts the y-axis. This is 4 here.
Explanation: The HL theorem is the hypotenuse leg theorem. The HL theorem is referred to the congruency of right triangles. This theorem states that two right triangles that have a congruent hypotenuse and a corresponding, congruent leg are congruent triangles.
The train is going 60 miles per hour
In 2 hours
60 * 2 = ?
In 4 hours
60 * 4 = ?
Answer:
x=3/4
Step-by-step explanation: