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
PSYCHO15rus [73]
4 years ago
9

Which shows 60^2 − 40^2 being evaluated using the difference of squares method?

Mathematics
2 answers:
DerKrebs [107]4 years ago
7 0
D. The answer has to be 2,000, eliminating A and C. B doesn't even use the original equation, as well as incorrectly solving the method, so D is the correct answer, even if you don't understand the principles.
malfutka [58]4 years ago
4 0

Answer:

Option D - 60^2-40^2=(60+40)(60-40)=(100)(20)=2000

Step-by-step explanation:

Given : Expression  60^2-40^2

To find : Which shows expression being evaluated using the difference of squares method?

Solution :

The best method to find the difference of squares method is by using identity,

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

According to question,

a=60 and b=40

60^2-40^2=(60+40)(60-40)

60^2-40^2=(100)(20)

60^2-40^2=2000

Therefore, Option D is correct.

You might be interested in
A student might expect that there is a positive correlation between the age of his or her computer and its resale value. Tue or
sergiy2304 [10]

Answer: False

Step-by-step explanation:

As time goes by, the resale value of a computer tends to drop because it tends not to function as properly as it did before, and the quality of new computers on the market drives the price of older computers down. So you can expect that as the amount of time increases, the resale value will decrease, resulting in a negative correlation

3 0
4 years ago
A recipe says to use 2
gulaghasi [49]
You can make 96 cookies
8 0
3 years ago
Read 2 more answers
the endpoints of the diameter of a circle are (−6, 6) and (6, −2), what is the standard form equation of the circle?
miss Akunina [59]
The equation of a circle in standard form is

(x - h)^2 + (y - k)^2 = r^2

where (h, k) is the center of the circle, and r is the radius if the circle.

We need to find the radius and center of the circle.
We are given a diameter, so to find the center, we need the midpoint of the diameter.

M = ((-6 + 6)/2, (6 + (-2))/2) = (0, 2)
The center is (0, 2).

To find the radius, we find the length of the given diameter and divided by 2.

d = \sqrt{(-6 - 6)^2 + (6 - (-2))^2)}

d = \sqrt{144 + 64}

d = \sqrt{208}

r = \dfrac{d}{2} = \dfrac{\sqrt{208}}{2} = \dfrac{\sqrt{208}}{\sqrt{4}} = \sqrt{52}

(x - 0)^2 + (y - 2)^2 = (\sqrt{52})^2

x^2 + (y - 2)^2 = 52
7 0
3 years ago
The price of an item yesterday was
lora16 [44]

step-by-step explanation: the increase = 204 - 120

increase = 84

percent increase = 84/120

percent increase = 70% so of course the percentage is 70%                          ( I hope this helps you )

8 0
3 years ago
How are mountains and plateaus alike?
IgorLugansk [536]

Answer:

It is similar to a mountain in that it is dramatically higher than what is immediately around it. But mountains usually have a distinct apex or peak that is very small relative to the base and not typically level. Plateaus and mesas have tops only a little smaller than the base, and relatively flat. If the aspect ratio is less than 1, plateau. If greater than 1, mesa.

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • A car travels 56.7 miles in a hour. If it continues at the same speed, how far will the car travel in 12 hours?
    5·2 answers
  • How many cupcakes can I make with 16 cups of batter into each cupcake
    9·2 answers
  • WANT FREE POINTS PLUS BRAINLIEST??? ANSWER THIS CORRECT AND QUICK
    7·2 answers
  • Car a leaves the grand canyon at noon. it travels at 60 mph, but stops at 3 pm for an hour. car b leaves the grand canyon at 2 p
    9·1 answer
  • Plz help me plz help me plz plz me plz plz plz plz plz help me plz help me
    13·1 answer
  • The office supplies store where you work has a 15% off sale. If a customer purchases $250 in office supplies, how much will they
    10·1 answer
  • Henry went clothes shopping and bought 3 pairs of shorts for $22.99 each, 2
    10·1 answer
  • (x+4)+(x-3)+(2x+2)+(x^2+3x+1)
    9·1 answer
  • 1000 branilys Determine the coordinates of the point shown.
    6·2 answers
  • A cylinder has a volume of 100cm and a radius
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!