1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Dvinal [7]
3 years ago
5

AP calculus HW Need help on #61

Mathematics
1 answer:
Yuki888 [10]3 years ago
7 0
Expanding the limit, we get (x^2+2x∆x+∆x^2-2x-2∆x+1-x^2+2x-1)/<span>∆x

Crossing the 1s , the 2xs, and the x^2s out, we get

(2x</span>∆x+∆x^2-2∆x)/<span>∆x

Dividing the </span><span>∆x, we get 
2x+</span><span>∆x-2. 

Making the limit of </span><span>∆x=0, we get 2x-2.</span>
You might be interested in
What are the solutions to the system of equations graphed below? Select all<br> that apply.
postnew [5]
Answer is A and B. Solutions are where the two graphs cross, so you just need to find those coordinates, which are (-5,-13) and (2,-6).
7 0
3 years ago
Read 2 more answers
Tara has a balance of -$25.36 in her checking account. Tara takes a deposit to the bank in the amount of $25.36.
polet [3.4K]

Answer:

C. $0 because $25.36 and -$25.36 are additive inverses.

Step-by-step explanation:

Additive inverses means 2 numbers that are the complete opposite.

When additive inverses are added together, their sum is 0.

Example: 1 and -1.

They're both additive inverses because they're on the opposite sides on the number line, if -1 had to be a positive, it wouldn't be an inverse.

<u>Given:</u>

  • Before the deposit, her bank account balance is -25.36.
  • She has deposited $25.36 into her bank account.

<u>Solve:</u>

Let's add both -25.36 and 25.36.

-25.36 + 25.36 = 0.

C. is the correct choice, and the reasoning is valid.

3 0
2 years ago
A man walks 20 km in 4hours. Find his speed
lianna [129]

Answer: 5km per hour

Step-by-step explanation:

You'd do 20/number of hours so you get 1 hour and you'll get his walking speed

7 0
3 years ago
Read 2 more answers
F(x) = 3x/x+7, what is the domain?
artcher [175]

Answer:

All real numbers except x=-7

Step-by-step explanation:

Since x=-7 is a discontinuity in the rational function, this makes the denominator equal to 0.

6 0
2 years ago
During a sale, a store offered a 40% discount on a tablet that originally sold for $760.
elena-s [515]

Answer:

304

Step-by-step explanation: x/760 40/100=

760x40=30,400

30,400 divided by 100=304

7 0
2 years ago
Other questions:
  • Casey ordered 4 pizzas.Each one was cut into 6 equal slices.Her father ate 3 slices.What fraction of the pizza was left?Write th
    15·1 answer
  • Find a value of 21 + 4(3^2 -5)
    15·1 answer
  • Show me how to do this please for geometry!!
    10·1 answer
  • Which binomials are factors of x^2 + 4x – 12?
    12·2 answers
  • The time t required to drive a centain distance varies inversely with the speed r. If it takes 2 hours to drive the distance at
    8·1 answer
  • SOMEONE PLEASE HELP ME!!!!
    9·1 answer
  • Triangle X Y Z is shown. Angle X Z Y is a right angle. Angle Z X Y is 60 degrees and angle X Y Z is 30 degrees. The length of hy
    8·2 answers
  • How do you solve 2.14 x - 12.18=5.76
    9·2 answers
  • Help me and I’ll thank you
    10·1 answer
  • Please a step by step explanation also.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!