What is the range of the function y=4e^x?
2 answers:
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Answer:
Step-by-step explanation:
When we multiply a polynomial by a specific monomial, all terms in the polynomial get multiplied by the monomial.
So we can do this by term.
Multiplying x by x to the something power will just increase the exponent on the x term by one (since powers are just x multiplied by itself). This means the exponent here will increase by 1, so this becomes .
Same logic applies to the second term: , raise the exponent by one,
.
For the third term, if there is no exponent on a term you can assume it's exponent is 1 (so in this case - as
). Again, using the same logic, this turns into
.
For the last term, when we multiply a constant by a variable, we get a term with a variable and a coefficient - the constant becomes the coefficient and the variable stays the variable. Therefore, .
Adding these terms all together gets us .
Hope this helped!
Answer:
25 lb bag of fertilizer can cover <u>10 square feet</u> of lawn.
Step-by-step explanation:
Given:
5 pounds of fertilizer cover = 2 of the lawn
We need to find the 25 lb bag cover.
Solution:
Now we know that;
5 pounds of fertilizer = 2 of yard.
1 lb of fertilizer = Number of lawn covered by 1 lb fertilizer.
Using Unitary method we get;
Number of lawn covered by 1 lb fertilizer =
Now we can say that;
1 lb of fertilizer = of the yard
25 lb of fertilizer = Number of lawn covered by 25 lb fertilizer.
Again by using Unitary method we get;
Number of lawn covered by 25 lb fertilizer. =
Hence 25 lb bag of fertilizer can cover <u>10 square feet</u> of lawn.