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Radda [10]
3 years ago
9

PLEASE HELP !! Math! Grade 8

Mathematics
1 answer:
Zina [86]3 years ago
4 0

Answer:

Mapping A

Step-by-step explanation:

To clarify this, the first box in each mapping has to go to only one number to resemble a function.  Function A works because each number is going to another number once while Function B doesn't work because of the number 2 going into two numbers.

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Please answer this and will marked as brainlist ​
xeze [42]
<h3>Answer: 1</h3>

where x is nonzero

=======================================================

Explanation:

We'll use two rules here

  • (a^b)^c = a^(b*c) ... multiply exponents
  • a^b*a^c = a^(b+c) ... add exponents

------------------------------

The portion [ x^(a-b) ]^(a+b) would turn into x^[ (a-b)(a+b) ] after using the first rule shown above. That turns into x^(a^2 - b^2) after using the difference of squares rule.

Similarly, the second portion turns into x^(b^2-c^2) and the third part becomes x^(c^2-a^2)

-------------------------------

After applying rule 1 to each of the three pieces, we will have 3 bases of x with the exponents of (a^2-b^2),  (b^2-c^2) and (c^2-a^2)

Add up those exponents (using rule 2 above) and we get

(a^2-b^2)+(b^2-c^2)+(c^2-a^2)

a^2-b^2+b^2-c^2+c^2-a^2

(a^2-a^2) + (-b^2+b^2) + (-c^2+c^2)

0a^2 + 0b^2 + 0c^2

0+0+0

0

All three exponents add to 0. As long as x is nonzero, then x^0 = 1

4 0
3 years ago
Practice
andrew11 [14]

Computing the <u>ratio of raisins to ounces</u>, it is found that due to the <u>higher computed ratio</u>, brand B advertises the greatest ratio of raisins per ounce.

---------------------------

  • For <em>brand A</em>, there are 60 raisins in the 24-ounces box, thus the ratio is of \frac{60}{24} = 2.5, that is, 2.5 raisins per ounce.
  • For <em>brand B</em>, there are 18 raisins in the 6-ounce box, 36 in the 12-ounce, and it follows this ratio, thus \frac{36}{12} = \frac{18}{6} = 3, thus, 3 raisins per ounce.
  • For <em>brand C</em>, there are 20 raisins in the 10-ounce box, 30 in the 15-ounce, and so on, thus \frac{20}{10} = \frac{30}{15} = 2, thus, 2 raisins per ounce.
  • Due to the <u>higher computed ratio</u>, brand B advertises the greatest ratio of raisins per ounce.

A similar problem is given at brainly.com/question/24622075

5 0
3 years ago
What is 1/3 as a decimal value?
Natalka [10]


.33 with a line over the .33 because it is not able to be simplified into a whole decimal when ever both numbers are a factor of 3 besides when it is half that will happen
4 0
3 years ago
What percent of this grid is shaded
faltersainse [42]

Answer:

The 4th one cuz it’s a percent

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Assume you have a credit card balance of $1,000. Your inter est rate on the credit card is 18 percent, and your minimum monthly
Vera_Pavlovna [14]
For 18% it will take 2 years to pay
For 3 years payment will be $36.50
For 14% it will take 1.9 years or 23 months
7 0
3 years ago
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