Lowest common factor 12 and 9

Answers

Answer 1

Answer: The LCM (Lowest Common Factor) of 12 and 9 is 36.

Answer 2

Answer: The LCF is 36. It's because if you multiply 12*3= 36 and 9*4=36.

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Rewrite using a single positive exponent.
7^4 * 7^-9

Answers

The expression $7^4 * 7^(-9)$ is equivalent to $1/7^(5)$ .

To rewrite the expression using a single positive exponent, we can use the properties of exponents.

Recall the property of exponents that says $a^m * a^n = a^(m + n)$ . This means that when you have the same base raised to different exponents and they are multiplied, you can add the exponents.

$7^4 * 7^(-9) = 7^(4 - 9)$

Now, simplify the exponent:

$7^(4 - 9) = 7^(-5)$

Recall another property of exponents that states $a^(-n) = 1 / a^n$ . This means that when you have a negative exponent, you can rewrite it as the reciprocal of the base raised to the positive exponent.

$7^(-5) = 1 / 7^5$

So, the expression $7^4 * 7^(-9)$ is equivalent to $1/7^(5)$ .

To know more about expression, refer here:

brainly.com/question/27911936

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7^4 x 7^-9=0.000059
Thats your answer
i hope it helped you

Alexia started babysitting when she was in high school. She has built a reputation for herself and has become popular among the neighborhood parents. Alexia charges $10/h and gets a $5 automatic tip. Alexia needs $75 to buy a present for her mother. She wants to find out the minimum number of hours she needs to babysit at one job to get the money she needs. (5 points) a. Write an inequality to show how to solve this problem. Identify what the variable is and what it represents. b. Solve the inequality to find out the minimum number of hours Alexia needs to babysit. Show Your Work.