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
jenyasd209 [6]
3 years ago
5

Factor 4x^2-49y^2 Please help me get the answer

Mathematics
1 answer:
Kruka [31]3 years ago
4 0

Answer:

(2x+7y)(2x-7y)

Step-by-step explanation:

You might be interested in
Write a function modeling this debt situation if the initial debt in 2009 was
Karolina [17]

Answer:

To solve this, we are going to use the standard decay function where

is the final amount remaining after  years of decay is the initial amount is the decay rate in decimal form

is the decay factor

is the time in years

I will tell Greece to decrease their expending by 25%

To find our decay factor , we are going to convert the rate from percentage to decimal; to do it, we are going to divide the rate by 100%

Decay factor =

Decay factor =

Decay factor = (0.75)

We can conclude that our decay factor is (0.75)

c. To solve this, we are going to use the standard decay function  from our previous point.

where

is the final amount remaining after  years of decay is the initial amount is the decay rate in decimal form

is the decay factor

is the time in years

We know from our problem that the initial debt in 2009 was $500 billion, so ; we also know from our previous calculation that our decay factor is (0.75), so lets replace those values in our function:

We can conclude that the function that model this debt situation is: .

Greece will be debt-free when heir debt is zero. Translating this into our model, Greece will be debt-free when . Since we will need logarithms to find the time , and the logarithm of zero is not defined, we are going to use a small value for , so we can use logarithms to find .

Let . After all, a $1 debt for a country is practically the same as being debt-free.

Now, we can solve for  using logarithms:

We can conclude that, with me in charge, Greece will be debt free after 93.6 years. I won't reconsider my answer b. Even tough 93.6 years is a lot of time, decreasing the public expense more than 25% will have worse consequences for the economy of the country than the debt itself.

6 0
2 years ago
What is the area, in square centimeters, of the figure shown?
lisabon 2012 [21]
For this one, instead of breaking it down into 3 shapes we can simply subtract the missing square area from the total enclosing area...

15*8-4*4

120-16

104 cm^2
4 0
3 years ago
Read 2 more answers
True or false: In (r, theta), the value of r can be negative.
AveGali [126]
The answer to the mathematics question presented above is 'True'. It is correct to say that in (r theta), the value of r can be negative. A negative radius can be used when it comes to graphing a "polar'' function. Thus, the answer to the question is 'true'. 
3 0
3 years ago
What part of the circumference is an arc whose measure is 30°?<br> 1/12<br> 1/10<br> 1/8<br> 1/6
GrogVix [38]

Answer:

1/12

Step-by-step explanation:

The whole circumference (i.e complete circle) is an arc which measures 360°

in our case, it is given that our arc measures only 30°

the fraction of our arc of 30° to the complete circle of 360° is

30/360

= 3/36

= 1/12

5 0
3 years ago
Find the surface area of a square pyramid with a base length of 24 cm and a height of 16 cm. Explain how you solved the problem.
icang [17]

Answer:

the answer b

Step-by-step explanation:

[surface area]=[area of 4 triangles sides]+[area of square base]

[area of square base]=24*24--------> 576 cm²

[area of one triangles side]

l=slant height

l²=16²+12²-------> l²=400-----------> l=20 cm

[area of one triangles side]=24*20/2--------> 240 cm²

[area of 4 triangles sides]=4*240----------> 960 cm²

[surface area]=[960]+[576]--------> 1536 cm²

6 0
2 years ago
Other questions:
  • A famous mathematician and physicist named Archimede was born in 287 B.C. Write an integer to express the year of his birth.
    11·2 answers
  • Find the measure of angle x in the figure below:
    13·1 answer
  • What’s a situation that can represent -4?
    10·1 answer
  • I need to know the answer
    11·2 answers
  • Please help I’ve got no clue what I’m doing
    7·1 answer
  • Given vectors u = (-3, 2) and v = (2, 1), what is the measure of the angle between the vectors?
    8·2 answers
  • PLEASE HELP ME!!!!!<br> I need help on number 6 please!!!
    7·1 answer
  • A hair stylist knows that 87% of her customers get a haircut and 40% get their hair colored on a regular basis. Of the customers
    10·1 answer
  • 4. The cube root parent function is vertically stretched by a factor of 3, reflected in the x-axis,
    8·1 answer
  • I NEED HELP Which table represents a function?хуA0 4142535x yXolo4B115U AUОсху26374849ху565 | 7D
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!