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
ivolga24 [154]
3 years ago
15

Factor x2 – 256 by difference of squares.

Mathematics
1 answer:
andre [41]3 years ago
7 0

Answer:

Since both terms are perfect squares, factor using the difference of squares formula,

a2−b2=(a+b)(a−b) where a=x and b=16.(+)x16)

Step-by-step explanation:

You might be interested in
Given that the line y=ax+b passes through the points A(0; 3) and B(-2;7), how do I find the values of a and b?
Andru [333]
First you have find the slope (a) in order to find the value of the y intercept (b).

To compute the slope, you simply have to find the difference of y coordinates and divide them by the difference of x coordinates:

a = (y2-y1)/(x2-x1)
a = (7-3)/(-2–0)
a = 4/-2
a = -2

To compute the y intercept denoted by b, we substitute the value of a with -2 in the formula and choose any point (x,y) and substitute their values in the formula as well. Like so:

I choose point A:

3 = (-2)(0) + b
3 = b

4 0
2 years ago
One number is 4 less than a second number. Twice the second number is 13 less than 5 times the first. Find the two numbers.
Roman55 [17]

Answer:

7 , 11

Step-by-step explanation:

Let the second number be 'x'

the first number = x - 4

Twice the second number : 2*x = 2x

5times first = 5*(x -4) = 5*x - 5*4 = 5x - 20

13 less than 5 times the first = 5x - 20 - 13 = 5x - 33

5x - 33 = 2x

Add 33 to both sides

5x - 33 + 33 = 2x +33

5x = 2x + 33

Subtract '2x'from both sides

5x - 2x = 2x - 2x + 33

3x = 33

Divide both sides by 3

\frac{3x}{3}=\frac{33}{3}

x = 11

First number = x - 4 = 11 - 4 = 7

The numbers are 7 , 11

3 0
3 years ago
Noah and Maggie are making a rectangular picture frame.They want the length of the frame to be three inches longer than the widt
zalisa [80]

Answer:

9 inches by 12 inches

Step-by-step explanation:

So let's say <em>L</em>=length and <em>W</em>=width.

Since the problem states that the length should be 3 inches longer than the width, <em>L</em><em>=</em><em> </em>W+3

And the formula to find the perimeter of a rectangle is 2L+2W

so plug in W+3 for L and you get 2(W+3)+2W

Then distribute

2W+6+2W

Combine like-terms

4W+6

And the problem states the perimeter is 42 inches so,

4W+6=42

Subtract 6 to both sides

4W=36

Divide by 4 to both sides

W=9

So the width is 9

And to get the length, plug in 9 for W in L=W+3

L=9+3

L=12

So the length is 12

7 0
3 years ago
Angles C and E are supplementary. The M&gt;C = 112 and M&gt;E = (3x + 50) Solve for X.
maxonik [38]

Answer:

The value of x is 6

Step-by-step explanation:

we know that

If two angles are supplementary, then their sum is equal to 180 degrees

so

In this problem

m∠C+m∠E=180°

we have

m∠C=112°

m∠E=(3x+50)°

substitute and solve for x

112°+(3x+50)°=180°

3x+162=180

3x=180-162

3x=18

x=6

7 0
3 years ago
Rectangle ABCD is congruent to rectangle. Which sequence of transformations could have been used to transform rectangle ABCD to
il63 [147K]
Rectangle ABCD was rotated 90° counterclockwise around the origin and then translated 8 units down.
7 0
3 years ago
Other questions:
  • Which point is collinear with points B and C?  
    6·1 answer
  • The simplest form of √98/√2 is
    8·1 answer
  • PLEASE HELP ASAP!!! I NEED CORRECT ANSWERS ONLY PLEASE!!!
    13·1 answer
  • The formula y=450+0.15gives the weekly earnings for a sale person who earns 450 a week plus 15% commission on all sales .find th
    13·1 answer
  • (80 pts) Alexandra bought 4 hamburgers and 3 drinks for her family. The cost was $18.25. Tyler bought 6 hamburgers and 4 drinks
    14·2 answers
  • Give the order of the matrix, and identify the given element of the matrix.
    15·1 answer
  • Please help on this i dont get it at all!
    14·1 answer
  • 60 sayısının, tek tam sayı<br>çarpan sayısının çift tam<br>sayı çarpan sayısına oranı<br>kaçtır?​
    8·1 answer
  • I need help with this problem!
    8·1 answer
  • Please explain your answer :)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!