Please someone help me
2 answers:
<u>Answer:</u>
The correct answer option is D. 5.
<u>Step-by-step explanation:</u>
We are given the following expression where 4 is to be divided by a fraction 1/5:
÷
This can also be written as:
Now to find the quotient of this, we will take the reciprocal of the fraction in the denominator to change it into multiplication.
Therefore, ignoring the 1 in denominator, we can simply multiply 4 by 5.
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Answer:
Step-by-step explanation:
The surface area of a square pyramid is the sum of the area of the squared base + 4 times the area of each triangular face, therefore:
where:
is the area of the base, where
L is the length of the base
is the area of each triangular face, where
h is the height of the face
Substituting,
For the model in this problem,
L = 12
h = 8
Therefore, the surface area here is:
To find percent error you use the following formula:
% error = (1.6 - 1.9)/1.9 * 100% = 15.79%
% error = (1.6 - 1.9)/1.9 * 100% = 15.79%