Directly translated quotient means answer from division problem. The only answer choice that shows division is 9/y. 9y is multiplication and the other 9+y is addition.
Answer:
36
Step-by-step explanation:
The variance of one human is σ² = 36 days. Each gestation time for each human of the sample is independant of the other.
Both variance and mean of the sum of identically distributed indipendant random variables is equivalent to the product of the variance/mean of one element of the sample by the sample length.
Therefore, if we take the sum n of random variables with variance 36, then the variance of the sum will be 36*n. The sampling distribution is obtained from the sum by dividing by n. If we divide by a number, then the variance will be divided by its square. So the variance of the sampling distribution is 36*n/n² = 36/n, and the standard deviation is 6/√n days.
If we want the sampling distribution to have standard deviation equal to 1 day, then we need n such that
This shows that the sample length should be 36.
Answer:
11) 5.6 cm^2 c) 12) 32.4 inches^2 a)
Step-by-step explanation:
11) The formula to find the area of a triangle is bh/2, so now we need to find the lengths of the base and height to apply the formula.
We can see that the height is 2.8 cm and the base is 4 cm. Applying the formula for the area of a triangle we have:
bh/2 plugging 2.8 and 4 in
= 4*2.8/2 simplifying
= 11.2/2 dividing
= 5.6 cm^2
Therefore the area of the triangle is 5.6 cm^2.
12) We can see that this figure is a 4 sided shape but we can also see that we can separate this shape into two shapes and calculate the area. See image.
We can cut this shape with a line to give us a triangle and a rectangle, which will enable us to solve for the area of the triangle and rectangle then we can add the areas up giving us the total area of the shape.
The triangle first we know that the base of the triangle is 4 inches because the the width of the rectangle is 4 inches too. But now we need to find the height of the triangle we can do this by subtracting 5.2 inches from 11 inches because the height of the triangle is the length of the shape itself subtracted by the length of the new rectangle that we made.
11 - 5.2 = 5.8 inches.
This gives us the height of the triangle, now we can calculate for the area using the formula bh/2. Plugging the base and height in we have:
bh/2
= 4*5.8/2 simplifying
= 23.2/2 dividing
= 11.6 inches^2..
Now we can calculate for the area of the rectangle using the measurements we already know which is the length and width of the rectangle. We know that the length is 5.2 inches and the width is 4 inches. So, we can not calculate for the area using the formula lw. Substituting 5.2 inches for the length and 4 inches for the width.\
lw
= 5.2*4 simplifying
= 20.8 inches^2.
Now we can add the area of the triangle and the rectangle together which will give us the total area of the shape.
20.8 + 11.6
= 32.4 + inches^2.
Therefore the area of the figure is 32.4 + inches^2.
answer: 35%
Step-by-step explanation: 1/4 is 25 so add 25 and 40, you get 65. Subtract 65 by 100 and u get 35. Therefor, 35% is your answer! plz mark brainliest or rate :D