Answer:
x=29
Step-by-step explanation:
The sum of angles in a triangle is 180deg.
We know this is a right triangle, so the third angle is 90deg, leaving us with 90deg for the other two.
(2x-2) + (x+5) = 90
3x + 3 = 90
3x = 87
x = 29
Answer:
3 and 4
Step-by-step explanation:
The length of AB would be 38 units
<h3>How to determine the length AB?</h3>
The attached image represents the missing piece in the question
Considering the triangle BCD;
Calculate the length BC using the following Pythagoras theorem
BC^2 = CD^2 + BD^2
This gives
BC^2 = 10^2 + 8^2
Evaluate
BC^2 = 164
Considering the triangle CBA;
Calculate the length AB using the following Pythagoras theorem
AB^2 = AC^2 - BC^2
This gives
AB^2 = 40^2 - 164
Evaluate
AB^2 = 1436
Take the square root
AB = 38 (approximated)
Hence, the length of AB would be 38 units
Read more about right triangles at:
brainly.com/question/2437195
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The 90th percentile is 1.2816 standard deviations from the mean. That tells you the standard deviation is ...
... (40 in - 38 in)/(1.2816) ≈ 1.56 in
The standard deviation for height for 4-year olds seems to be 1.56 inches.
Answer:
4.71, 4.72, 4.73, 4.74, 4.75, 4.76,4.77, 4.78, and 4.79
Step-by-step explanation:
all you need to do is move into hundredths and you need to know that there are 10 hundredths between 2 tenths.