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
kirza4 [7]
3 years ago
9

Anna wants to factor the polynomial p(x)=5x^4+40x. She knows that the sum of cubes formula is a^3+b^3=(a+b)(a^2−ab+b^2).

Mathematics
1 answer:
Artemon [7]3 years ago
7 0

Answer:

Part A:  Option 2, A: Anna’s answer is incorrect. She correctly factored out 5x, but incorrectly identified a and b, so her answer cannot be correct.

Part B:  Option 3, B: 5x(x+2)(x^2−2x+4)

Step-by-step explanation:

p(x) = 5x^4 + 40x

p(x) = 5x(x^3 + 8)

p(x) = 5x(x + 2)(x^2 - 2x + 4)

Part A:  Option 2, A: Anna’s answer is incorrect. She correctly factored out 5x, but incorrectly identified a and b, so her answer cannot be correct.

Part B:  Option 3, B: 5x(x+2)(x^2−2x+4)

You might be interested in
If mÃc=170° Find mLB
kenny6666 [7]

Answer:

∠ B = 85°

Step-by-step explanation:

the inscribed angle B is half the measure of its intercepted arc AC , then

∠ B = \frac{1}{2} × 170° = 85°

8 0
1 year ago
20a + 158 +6c = 20 (6) + 15 (4) + 6(8)<br> +<br> ?<br> +<br> ?
Jobisdone [24]

Step-by-step explanation:

20a + 158+6c=you will expand the brackets

= so it is 120+60+48

20a+158+6c=120+60+48

20a+ 6c=120+60+48-158

20a+6c=70

20a divide by 20+6c divide by 6 on both side

a + c = 0.58

7 0
2 years ago
Please help!!!!<br> I desperately need the correct answer I’ve been trying all day!
zysi [14]

Answer:14708

Step-by-step explanation:Exponential Functions:

y=abxy=ab^x this is not right      not correct

y=ab

x

a=starting value = 13000a=\text{starting value = }13000

a=starting value = 13000

r=rate = 2.5%=0.025r=\text{rate = }2.5\% = 0.025

r=rate = 2.5%=0.025

Exponential Growth:\text{Exponential Growth:}

Exponential Growth:

b=1+r=1+0.025=1.025b=1+r=1+0.025=1.025

b=1+r=1+0.025=1.025

Write Exponential Function:

y=13000(1.025)xy=13000(1.025)^x

y=13000(1.025)

x

Put it all together

Plug in time for x:\text{Plug in time for x:}

Plug in time for x:

y=13000(1.025)5y=13000(1.025)^{5}

y=13000(1.025)

5

y=14708.30677y= 14708.30677

y=14708.30677

Evaluate

y≈14708y\approx 14708

y≈14708

5 0
3 years ago
Read 2 more answers
A) 5y +32=72<br> B) K/2+24=29
iren [92.7K]

Step-by-step explanation:

A)y=8

B)k=10

5y=72-32

5y=40

y=8

1/2k+24=29

k+48=58

k=58-48

k=10

3 0
3 years ago
Find the area of the rhombus.
Archy [21]
The answer is c
the rhombus above is formed by 4 triangles
area of one triangle= 9*13.5*0.5=60.75
area of 4 triangles = 4*60.75=243
6 0
3 years ago
Read 2 more answers
Other questions:
  • Consider the liner equation y+4x=27 solve for y and rewrite the equation in the slope intercept form
    11·1 answer
  • The perimeter of a square is 4 times as great as the lenght of any of its sides. Determine if the perimeter of a square is propo
    9·1 answer
  • I would appreciate it a lot
    13·2 answers
  • What is the approximate length of arc s on the circle below? Use 3.14 for Pi. Round your answer to the nearest tenth.
    15·2 answers
  • What set of numbers does -10 belong to
    9·1 answer
  • Find the distance between the points (-3, 9) and (6, -5). Round the answer to the nearest tenth.
    5·2 answers
  • Evaluate f(-7). f(x)=3x^2<br><br> a) -441<br> b) -147<br> c) 78<br> d) 147
    6·1 answer
  • What is the answer to 3/8 + 2/4
    8·1 answer
  • Help me now and I will be happy
    15·2 answers
  • PLEASE ANSWER FAST ASAP
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!