What is 23 divided by 7
2 answers:
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ANSWER
y=x
y=x³
EXPLANATION
A function, f(x) has an inverse if and only if
Thus, the function is one to one.
For y=x or
Hence this function has an inverse.
For the function y=x² or f(x)=x².
This function has no inverse on the entire real numbers.
For the function y=x³ or f(x)=x³
This function also has an inverse.
For y=x⁴ or f(x) =x⁴
This function has no inverse over the entire real numbers.
Answer:
for the second one,
f(4)= 2⁴-7= 9
g(4)= 1.5x4-3= 3
therefore 9>3
f(4)>g(4)
<em><u>Question:</u></em>
The surface area of a sphere can be approximated as follows:
Surface area = 4πr2;
where r is the radius of the sphere;
π is a constant that is roughly equal to 3.
Calculate the surface area of a sphere with a radius of 7 meters using the simple approximation above.
<em><u>Answer:</u></em>
<h3>The surface area of a sphere is 588 square meter</h3><em><u>Solution:</u></em>
<em><u>The surface area of a sphere is given as:</u></em>
Where, "r" is the radius of sphere
π is a constant that is roughly equal to 3
From given,
Radius = 7 meter
<em><u>Substitute r = 7 in given formula</u></em>
Thus the surface area of a sphere is 588 square meter