Kaylee used her graduation money to set up a savings account that earns 3.4% interest
1 answer:
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Answer: b) 58%
<u>Step-by-step explanation:</u>
First, let's find the z-score using the formula:
Next, refer to the z-score table below to find the value of 0.20
Look on the left side for 0.20 and the top for 0.00 to find the percent for 0.20. The table shows the percent above the MEAN so you need to add the percent below the mean (50%) to the value in the table.
0.0793
<u>+ 0.5 </u>
0.5793 = 57.93%
1. Points M and N have coordinates (-4,0) and (4,2), respectively.
Then vector is perpendicular to the neede line.
2. Write the equation of line that passes through the point P(2,-4) and is perpendicular to vector
3. Find the point on x-axis, that lies on the perpendicular line.
When y=0, then 4x-4=0, x=1 and point (1,0) lies on perpendicular line.
Answer: correct choice is C.
Remark
The scores of the 4 games are 192 + 214 + 250 + x
When you divide these scores by 4 you need to get 225.
Equation
Solution
Add the 3 numbers together
(656 + x)/4 = 225 Multiply both sides by 4
656 + x = 225*4
656 + x = 900 Subtract 656 from both sides.
x = 900 - 656
x = 244 His 4th game has to be 244 or higher.