To find the mean, add all the values and then divide the sum by how many values you added. In this case, if the teacher drops the lowest score (68) that would leave 5 values. So,
90 + 83 + 88 + 74 + 80 = 415 < this is the total of all (minus the lowest) or Lorenzo's test scores. Now take this number, and divide it by 5 (because we added five tests together):
415 / 5 = 83 < this is the new mean, and also his percentage grade.
Answer: 83
Alternatively, you can list the grades from least to greatest, and cancel one value from each side until you get to the middle.
Answer & Step-by-step explanation:
The circumference is basically the perimeter of a circle. The circumference of a circle is found by multiplying the diameter by π (pi):
or by multiplying the radius (which is half of the diameter) by 2 and π:
Answer:
1. = –5 and the recursive formula to find the next four terms. The first five terms are –5, –10, ... Use the formula for an arithmetic sequence. The first term a. 1 is 1, and n ≥ 2. ... 5. BALL A ball is dropped from an initial height of 10 feet. The maximum heights the ball ... CCSS MODELING A landscaper is building a brick patio
Step-by-step explanation:
Answer:
0.75
Step-by-step explanation:
Answer:
Step-by-step explanation:
The third pig is only 2/3 of the way done with his strawberry house, the fourth pig builds a house out of sticks he’s only 2/3 of the way there, the last pig builds a house out of bricks he’s only 2/3 of the way there.