Answer:
804 in^2
Step-by-step explanation:
The surface area of a sphere is given by A = 4πr^2, where r is the radius of the sphere.
Here, A = 4π*8^2 in^2 (must use units of measurement)
=256π in^2, or approximately 804 in^2
Answer: 14 grams
Step-by-step explanation:
It took 4 balloons to make a duck that weighs 56 grams to float. With one balloon, the number of grams that will float will be 56 grams divided by 4. This will be:
= 56 grams ÷ 4
= 14 grams
9 because 24 divided by 2 is 12 and 12 subtracted by 3 is 9
Answer:
a) There is suggestive evidence the velvet leaf seed is successful at weed control.
b) Lower bound: 3.699 Upper bound: 6.629
c) Since the confidence interval contains the average percent of seeds to be infected by the beetle (5.164), so we fail to reject the null hypothesis at the specified level of significance.
Step-by-step explanation:
See attached picture.
The maximum possible measurement is 1.25 Kg
and the minimum possible measurement is 1.15 kg
<u>Solution:</u>
Given mass of an ostrich egg is 1.2 Kg
We have to find the minimum and maximum possible measurements to the nearest tenth of a kilogram
The greatest possible error in measurement nearest tenth of a kilogram, is a half a tenth of a kilogram which is:-

Now, the maximum value will be equal to calculated amount plus the error in measurement of value .i.e.

Now, the minimum value will be equal to calculated amount minus the error in measurement of value .i.e.

Hence, maximum possible measurement is 1.25 Kg
And the minimum possible measurement is 1.15 kg