Answer:
-1, 2.5, 20, 21
Step-by-step explanation:
16 plus 4 is <u>20</u>
<u>2.5</u>
7-8 is <u>-1</u>
<u>21</u>
Answer:
As an improper fraction: 8463/32
As a mixed number 264 15/32
Step-by-step explanation:
1. Multiply the base number times the denominator, then add the numerator to that number, and put it over the original denominator.
2. Do this for all of the numbers
3. multiply straight across, top*top*top, then bottom*bottom*bottom numbers. That number will be your improper fraction. Then divide that top number by the bottom denominator, take it out, leave the remainder as the numerator, and you have your mixed number.
1. To find the mean absolute deviation of the data, start by finding the mean of the data set.
2. Find the sum of the data values, and divide the sum by the number of data values.
3.Find the absolute value of the difference between each data value and the mean: ...
4. <span>Find the sum of the absolute values of the differences.</span>
The height at time t is
h(t) = 144 - 16t²
When t = 0, then h = 144.
Therefore the height from the ground is 144 when the object is dropped.
When the object reaches the ground, h = 0.
Therefore
144 - 16t² = 0
t² = 144/16 = 9
t = 3 s
Answer:
The object reaches the ground in 3 seconds.
15. 70° because a right angle is 90° and we have the angle of ADB which is 20°. So 90°-20°=70°.
16. 70° because angle PSQ is 60° and angle QSR is 10°. So 60°+10°=70°.
17. 55° because it says it in the explanation. I assume this is a typo and they meant to ask the measurement of ADC and in that case it would be 130° because angle ADB is 75° and angle BDC is 55°. 75°+55°=130°.
18. 40° because angle PSQ is a right angle which means it's 90°. So 130°-90°=40°.
19. 140° because angle ADB is 120° and angle BDC is 20° so 120°+20°=140°.
20. 125° because again it's in the explanation. But if it's a typo and they meant what is the measurement of PSQ then it is 50° because PSR is 125° and QSR is 75° so 125°-75°=50°.
Hope this helps! :)
