What's the answer to number 28????

Mathematics

2 answers:

tangare [24]3 years ago

6 0

Yes positive 12 is always greater than -24 because all the positive for always greater than not that it's so positive positive 12 is greater than -24

11111nata11111 [884]3 years ago

4 0

12x is greater than or equal to -24y.
Hope this helps you! (:

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A dance academy charges $24 per class and a one time registration fee of $15. A student paid a total of $687 to the academy. Fin

dem82 [27]

Answer:

The student took 28 classes

Step-by-step explanation:

What I did was minus $15 from the $687 total, cause $15 is only a one time registration fee, then 687-15=672, so then I divided 672 by the cost per class, so $24, 672 divided by 24 equals to 28, so the student took 28 classes.

5 0

3 years ago

Does someone mind helping me with this problem? Thank you!

Rasek [7]

Plug in x with -1

$8(-1)^{4} -3(-1)-7=?$
A negative number in parenthesis times an exponent is always positive.

8+3-7=4

4 0

3 years ago

Use the calculator to find the product. (9. 1 × 109)(7. 5 × 102) What is the exponent of the power in scientific notation?.

____ [38]

The exponent of the power is 11 in scientific notation.

<h3>Given </h3>

The numbers are;

The product of (9. 1 × 10^9)(7. 5 × 10^2)

<h3>What is scientific notation?</h3>

Scientific notation is a method of expressing numbers in terms of a decimal number between 1 and 10, but not 10 itself multiplied by a power of 10.

To find the product of the given numbers follows all the steps given below.

The product of number is;

$=(9.1 \times 10^9) \times (7.5 \times 10^2)\\\\= (9.1 \times 7.5) \times (10^{(9+2)})\\\\ =68.25 \times 10^{11}$