What is the average rate of change from x=-1 to x=-2

Answers

Answer 1

Answer: the average rate of change from x=-1 to x=-2 is +3

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The sum of two numbers is 30 and their difference is 2. Find the two numbers by writing and solving asystem of equations
The angles formed by two perpendicular lines have a measure of _______.a. 45° b. 90° c. 135° d. 180°

How do you solve these?

Answers

#2
2x^2 +9x-18
= (2x-3)(x+6)

#3
(3x+4)(2x-3)3
= (6x^2 + 8x - 9x - 12)3
= (6x^2 - x - 12)3
= 18x^2 -3x - 36

Length is 380 miles with is 280 miles what is the area

Answers

Area is length x width

So multiply 380 x 280 = 106,400 would be the answer.

area = 380*280=106,400

A CARPENTER BOUGHT A PEICE OF WOOD THAT WAS 371.952 CENTIMETERS LONG . TTHEN HE SAWED 0.68 CENTIMETERS LONG OFF THE END. HOW LONG IS THE PEICE OF WOOD NOW

Answers

Answer: the piece of wood is now 371.272 centimeters long. also please stop yelling.

Step-by-step explanation: To find the length of the piece of wood after 0.68 centimeters are sawed off, you need to subtract 0.68 from the original length of 371.952 centimeters.

371.952 - 0.68 = 371.272 centimeters

Please let me know if there is anything else I can help you with!

Andrea is shopping for items for her pet sitting business because the store is having a sale where everything in the store is 5% off. Andrea buys a cat carrier for $39.99 and a cat tower for $19.99. She has a coupon for an additional 15% off on the cat tower. Before tax, Andrea estimates that her total, after discounts, will be about $54. Determine if Andrea has estimated correctly.

Answers

Given:
cat carrier : 39.99
cat tower: 19.99
1st discount : 5%
2nd discount: 15% - cat tower

39.99 * 5% = 1.99
39.99 - 1.99 = 38

19.99 * (5% + 15%) = 19.99 * 20% = 3.99
19.99 - 3.99 = 16

38 + 16 = 54

Andrea estimated correctly.

Answer:

A. Yes, Andrea has estimated correctly

Step-by-step explanation:

I just took the test on edg.

There are 20 seniors serving the student council of the Cebu Institute of Technology this year. Of these, 3 have not served before, 10 served on the council in their junior years, 9 in their sophomore years, and 11 in their freshman years. There are 5 who served during both their sophomore and junior years, 6 during both their freshman and junior years, and 4 during both their freshman and sophomore years. How many seniors served on the student council during each of the four years in high school?

Answers

Answer:15 seniors served on the student council during their freshman year, 14 seniors served during their sophomore year, 16 seniors served during their junior year, and 3 seniors have never served before.

Step-by-step explanation:

Final answer:

Using inclusion and exclusion principles, we find that 2 seniors served on the student council during each of the four years in high school.

Explanation:

The problem can be solved using the Principle of Inclusion and Exclusion (PIE), a common technique in combinatorial mathematics. First, we add the number of seniors serving in their freshman, sophomore, and junior years: 3 (never served) + 10 (junior) + 9 (sophomore) + 11 (freshman) giving us 33.

Then, we subtract the number of seniors who served during both sophomore and junior years, freshman and junior years, and freshman and sophomore years: 33 - 5 (sophomore and junior) - 6 (freshman and junior) - 4 (freshman and sophomore). This results in 18.

However, from the initial condition we know that there are 20 seniors in total. Therefore, the two 'extra' seniors must have served all four years in high school. Thus we find that 2 seniors served on the student council during each of the four years in high school.

Learn more about Inclusion and Exclusion Principle here:

brainly.com/question/35890462

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Delilah received a stipend of $1,000 for the extra work she does on the job. She is going to deposit the money into her bank account that receives 4% simple interest.The account balance after year 3 is what

Answers

Answer:

$1,120

Step-by-step explanation:

Interest I = PRT/100 where P = amount deposited, R = rate percent and T = time.

So I = (1000 * 4 * 3) / 100

= $120.

So the account balance is 1,120 dollars.

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Take away 0 from any number tell the rule you discovered