Answer:
a) 0.064
b) 0.002
Step-by-step explanation:
a) Assuming that the batteries' voltage levels are independent
Probability = 0.8 * 0.8 = 0.64
b) batteries' voltage levels are dependent
20/19 (0.064)^19 *0.036 + 20/20 (0.064)^20 *0.036^0
= 0.002
Solution:
<u>Note that:</u>
- Given points = (-2,y) and (0,-4)
- Slope = -13/2
- Formula: y₂ - y₁/x₂ - x₁
<u>Forming an equation:</u>
- y₂ - y₁/x₂ - x₁ = Slope
- => -4 - y/0 - (-2) = -13/2
<u>Solving the equation:</u>
- => -4 - y/0 + 2 = -13/2
- => -4 - y/2 = -13/2
- => -4 - y = -13
- => -y = -13 + 4
- => -y = -9
- => y = 9
The missing value is 9.
Answer: A table of values is a graphic organizer or chart that helps you determine two or more points that can be used to create your graph. Here is an example of a table of values for the equation, y= 2x + 1.
Step-by-step explanation:
Answer:
24 boards
Step-by-step explanation:
From the above question, the width of a wooden board for a fence = 6 1/4 inches
How many boards are needed to build a fence that is 150 inches long?
This is calculated as:
6 1/4 inches = 1 board
150 inches = x
Cross Multiply
6 1/4 × x = 150 × 1
x = 150 ÷ 6 1/4
x = 150 ÷ 25/4
x = 150 × 4/25
x = 24 boards
Hence, 24 boards would be needed to build a fence that is 150 inches long
The x coordinate of Q would be 5.
In order to find this, first note that P and R are exactly 2 away from each other (-1 to -3 is two away).
Now, we know that Q is 3 times as far away from R as P is given the ratio at the beginning. Therefore we know it is 6 away from R (2 * 3 = 6).
Now we simply add 6 to the R value to get the Q value.
-1 + 6 = 5