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
blagie [28]
3 years ago
11

Polynomial help! 40 pts, please show all work for question 49 part a and b

Mathematics
2 answers:
hoa [83]3 years ago
6 0

Answer:

4x^2 +84x+440

840 in^2

Step-by-step explanation:

The length of the picture and frame is x+ 22+x= 2x+22

The width of the picture and frame is x +20+x = 2x+20

Area is length times width

A = (2x+22) *(2x+20)

We can FOIL to find the area

first 2x*2x = 4x^2

outer 2x*20 =40x

inner 2x*22 = 44x

last = 22*20 = 440

Add these together

4x^2 +40x+44x+440

4x^2 +84x+440

b.  x=4

4x^2 +84x+440

4(4)^2 +84(4) +440

4*16 +336+440

64+776

840

Kazeer [188]3 years ago
5 0

Answer:

a) 4x² + 84x + 440

b) 840 in²

Step-by-step explanation:

a) (22 + 2x) × (20 + 2x)

440 + 40x + 44x + 4x²

4x² + 84x + 440

b) x = 4

4(4)² + 84(4) + 440

840 in²

You might be interested in
Answer this and I give more points
SVEN [57.7K]

9) C.

10)A.

11) $75

Those are all the answers that you needed.

5 0
3 years ago
Read 2 more answers
Miguel has triple David's money, while Lisbeth has ten dollars less than David. The sum of their money totals $95. How much mone
ahrayia [7]

Answer:

Miguel has $63

Lisbeth has $11

David has $21

Step-by-step explanation:

let Miguel share be M

let Lisbeth share be L

let David share be D

from the question, we know that

M=3D

L=D-10.

M+L+D=95

thus,

3D+(D-10)+D= 95

3D+D-10+D= 95

5D-10 = 95

5D= 95+10

5D= 105

D= 105/5

D= 21.

thus,

M = 3D = 3×21

= $63

L = D-10 = 21-10

= $11

(63+21+11)$ = $95

3 0
3 years ago
The number of students in sixth grade is 1.03 times the number of students in seventh grade. What percent is equivalent to 1.03?
Minchanka [31]
Move the decimal to the right twice to make this into a percent:

1.03 —-> 103%
8 0
2 years ago
Ratio and Proportion can be used to convert weights between different systems of measurement. True False
sergeinik [125]

The answer you are looking for is true

7 0
3 years ago
Read 2 more answers
Five year old Michelle weighs 75 decagrams. What is her weight in centigrams?
Svet_ta [14]
It should be 75000. I don’t know. I looked this up but I still hope this helps!
3 0
3 years ago
Read 2 more answers
Other questions:
  • Please HELP for brainliest!
    11·1 answer
  • How do you <br>simplify 1-4(u-1)
    15·1 answer
  • Factor completely. <br><br> 36x^4+18x^3+40x^2 <br><br> Enter your answer in the box.
    10·2 answers
  • Write the algebraic expression for : half as much as a number, increased by 5
    10·2 answers
  • What is the value of x in the equation 2x + 3y = 36, when y = 6? 0 8 O 9 O 27 O 36​
    15·2 answers
  • 3/10 divided by 4/5 ... Divided then put into simplest form
    14·1 answer
  • Find x. Round your answer to the nearest tenth of a degree.
    5·1 answer
  • Caroline was thinking of a number. Caroline halves the number and gets 7.3. Form an equation with x from the information.​
    7·1 answer
  • 9-(6x+1)=3x+8 please help me with this I don’t know how to solve it.
    14·2 answers
  • guys, pleasee please can somebody who is good at school help me please, im failing, im behind and my mom is going to hit me agai
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!