Answer:
hmmmm lemme think
Step-by-step explanation:
Answer:
Step-by-step explanation:
Non-shaded region area:
A= 3.14 x 7^2=153.86 cm²
The whole circle area:
A=3.14 x 11^2= 379.94 cm²
Area for ONLY the shaded region:
A= 379.94 - 153.86= 226.08 cm²
We know that the:
mean = 93.9
standard deviation = 3.12
In calculating how many standard deviation a number is away from the mean, we simply deduct the mean from the highest and lowest number in the set, then dividing it by the standard deviation. This is also known as getting the z score which has the following formula:
Z = (highest/lowest number - mean)/ standard deviation
For the highest number which is 99, Z = (99 - 93.9) / 3.12 = 1.6
For the lowest number which is 88, Z = (88 - 93.9) / 3.12 = -1.89
All the quiz grades fall within 2 standard deviations away from the mean.
Answer:
8/3
Step-by-step explanation:
Use rise over run. Find two points that are at perfect points. For example (3,2). Don't use something like (2.45, 7.34), That will make it difficult. I used (0, 4) and (-3, 4). To get from (-3,4) to (0,4), you have to go up 8 and to the right 3. Always count up or down first and then side to side.
Step-by-step explanation:
15+3+3=21
21+15=36
36*16= 576
576/2= 288cm^2
Area= B
How I got his:
Area of a trapezium= 
Hope this helped!
