See the photo attached below, answer is D
When a shape is dilated the RATIOS of the lengths in the image to the corresponding lengths in the preimage are equal to the scale factor
The answer is true.
Point X lies on the line of intersection of planes S and R. This means that point X lies on both plane S and plane R at the same time.
You could also try and imagine the diagram without plane S and see that point X lies on plane R. Then you can imagine the same diagram without plane R and see that point X lies on plane S.
Let me know if you need any clarifications, thanks!
~ Padoru
Finding the area would be length x width, but to find the width we'd need to use Area / Length
The area = 44
The Length = 3 and 2/3
Solve
44 ÷ 2 and 2/3 = 12
12 is your answer
Answer:
<u>The correct answer s B. 2.21</u>
Step-by-step explanation:
There are three steps to calculate the standard deviation of the set of data given.
n = 5 (5 numbers in the set)
1. Calculate the mean, this way:
(1.2 + 2.3 + 5.2 + 6.6 + 4.8)/5 = 20.1/5 = 4.02
μ = 4.02
2. Calculate the variance, this way:
Sum of the squared difference between each number of the set and the mean divided by the number of elements of the sample minus one.
[(1.2 - 4.02)² + (2.3 - 4.02)² + (5.2 - 4.02)² + (6.6 - 4.02)² + (4.8 - 4.02)²]/4 =
19.568/4 = 4.892
σ² = 4.892
3. Finally, the standard deviation. this way:
Standard deviation is the square root of the variance.
σ² = 4.892
√σ² = √4.892
σ = 2.21
<u>The correct answer s B. 2.21</u>
