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3 years ago

8

What is the sum of the 9th square number and the 3rd cube number?

2 answers:

Lesechka [4]3 years ago

7 0

The sum of the 9th square number and 3rd cube number is 108

Fiesta28 [93]3 years ago

6 0

Answer:

9×9=81

3×3×3=27

27+81=108

108 is the answer

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Louise completed the work shown below.(5x3 3)2 = (5x3)2 (3)2 = 25x6 9determine if louise’s answer is correct. explain.

mestny [16]

Let us first assume that the operator between 5x^3 and 3 is addition. What Louise did was incorrect, as she did not follow the proper way of expanding a binomial. The actual steps to take when taking the square of a binomial is as follows:

(5x^3 + 3)^2 = (5x^3 + 3)(5x^3 + 3)
25x^6 + 15x^3 + 15x^3 + 9
25x^6 + 30x^3 + 9

The actual answer is <span>25x^6 + 30x^3 + 9.</span>

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3 years ago

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Inverse Function In Exercise,analytically show that the functions are inverse functions.Then use the graphing utility to show th

Anna [14]

Step-by-step explanation:

We need to show whether

$f^{-1}(x) = g(x)$

or

$g^{-1}(x) = f(x)$

so we'll do either one of them,

we'll convert f(x) to f^-1(x) and lets see if it looks like g(x).

$f(x) = e^x - 1$

we can also write it as:

$y = e^x - 1$

now all we have to do is to make x the subject of the equation.

$y+1 = e^x$

$\ln{(y+1)} = x$

$x=\ln{(y+1)}$

now we'll interchange the variables

$y=\ln{(x+1)}$

this is the inverse of f(x)

$f^{-1}(x)=\ln{(x+1)}$

and it does equal to g(x)

$g(x)=\ln{(x+1)}$

Hence, both functions are inverse of each other!

This can be shown graphically too:

we can see that both functions are reflections of each other about the line y=x.

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4 years ago

What is the function for the arithmetic sequence 7,9,11,13,15,17

xeze [42]

Answer:

Step-by-step explanation: I would say y=x+2 or 2 because every number that you add 2 to, it gives you the solution which is the second number

Hope this helps!!!!

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3 years ago

Mrs. Hinojosa had 75 feet of ribbon. If each of the 18 students in her

Sever21 [200]

Answer:

4 feet 2 inches

Step-by-step explanation:

Total Ribbon = 75 feet

Total Students = 18

If equally cut, each student will get the total divided by number of students, that would be:

75/18

That would be:

$\frac{75}{18}=\frac{25}{6}=4\frac{1}{6}$ feet per student

Now, we need the fractional part as inches.

We know 12 inches is 1 feet, so 1/6th feet is:

$(\frac{1}{6})*12=2$

The fractional part is "2 inches"

Thus,

each piece would be <u>4 feet 2 inches</u>

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3 years ago

Create two whole number division problems

AlekseyPX

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4 years ago

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