Answer:
9
Step-by-step explanation:
3/4×12 =12 ×3 :4 =36 :4 =9 ice pops
A) For both sets A and B, calculating the mean, range, and quartiles are a good way of measuring the center and spread. Using standard deviation may not be the best because we do not know whether the distributions are normal or not.
b) For set A, the lowest value is 63, while the highest is 86. An estimate for the mean, based on the average of these, is 74.5. Most of the 70+ values are below 74.5, so we may guess that the mean will be above the median.
For set B, the lowest is 63, while the maximum is 95. The estimated mean would be 79. But since there are more values on the 80+ and 90+ side, the median is likely to be higher than 79.
c) For set A, the mean is 74.79, while the median is 73, therefore the mean is above the median, and the prediction in part b is correct.
Answer:
A
Step-by-step explanation:
9,460,528,400,000,000 can be rounded off to
9,000,000,000,000,000.
A trick you can use for these questions is count the number of zeroes at the end.
There are 15 zeroes, hence the answer is
Proof:
Hence, the number of zeroes is equal to the exponent.
Answer:
The area of the shaded region is 7π square centimeters.
Step-by-step explanation:
Note that Circle B has a radius of 3 cm, and the two smaller circles, Circles O and C, both have a radius of 1 cm.
The area of a circle is given by:
Therefore, the area of Circle B, the entire circle, is:
The area of Circle O is:
And likewise, the area of Circle C is:
The area of the shaded area is the area of the Circle B subtracted by the area of Circles O and C. Hence:
Substitute and evaluate:
The area of the shaded region is 7π square centimeters.
The value of the radius of T is 28 units
<h3>
How to determine the value of the radius of T</h3>
From the question, we understand that:
Segment AB is tangent to T at B
This means that
<ABT = 90
So, we have a right triangle
Let the radius of the triangle be r
By the Pythagoras theorem, we have
AT^2 = AB^2 + VT^2
This gives
(25 + r)^2 = 45^2 + r^2
Open the bracket
625 + 50r + r^2 = 2025 + r^2
Subtract r^2 from both sides of the equation
625 + 50r = 2025
Subtract 625 from both sides of the equation
50r = 1400
Divide both sides by 50
r = 28
Hence, the value of the radius of T is 28 units
Read more about tangent at:
brainly.com/question/17040970
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