So we know that the decimal place will move one right. Well basically let's assume she could have bought these expressions:
x 10 x 3.50 = 35.00
x 9 x 3.50 = 31.50 + 3.75 = 35.25
x 8 x 3.5 = 28 + 3.75 x 2 = 35.5
x 7 x 3.5 = 24.5 + 3.75 x 35.75
We know that there is a pattern. See how the cents goes .25 up each time. So we know she'd buy 6 reams of white because (6 x 3.5 = 21) + (4 x 3.75 = 15) = 36.
Do you just want the answer or do you also want the work
-2010 : (-30) = -201 : (-3) = 67
Answer:
std deviation = 1.641
Step-by-step explanation:
Given that the TSH (Thyroid Stimulating Hormone) levels among healthy individuals are normally distributed with a mean of 3.1 units/mL.
If X represents the TSH then X is N(3.1, sigma)
We do not know sigma value, but we are given that exactly 95% of healthy individuals have TSH levels below 5.8 units/mL.
We know as per standard normal distribution score that 95th percentile referes to Z score of 1.645
Using this we can find standard dev
The volume of figure is 2 m³
<h3>What is volume of triangular pyramid?</h3>
The volume of a triangular pyramid can be easily found out by just knowing the base area and its height and is given as Volume of a triangular pyramid = (1/3) Base Area × Height
volume of figure,
= 1/3* base area * height
= 1/3* 1/2* 4 * 1 * 3
= 1/3 * 2 * 3
= 2 m³
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