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
Mrrafil [7]
4 years ago
14

Please help me with this, will mark brainliest and give 80 points to the person who helps with all questions.

Mathematics
2 answers:
Vsevolod [243]4 years ago
6 0

Answer:

Perimeter = 10x+8 cm

If x=4  P = 48cm

Area = 6x^2 +5x-21 cm^2

If x=4  A = 95 cm^2

Perimeter of new blanket is    =10x+18  cm

Step-by-step explanation:

Perimeter = 2(l+w)

                 = 2( 3x+7 + 2x-3)

Combine terms

                  = 2(5x+4)

Distribute

                   = 10x+8  cm

Let x = 4

P = 10*4 +8

  = 40+8

    =48 cm

A = l*w

= (3x+7) (2x-3)

FOIL

first: 3x*2x =6x^2

outer:  3x*(-3) = -9x

inner: 7*2x = 14x

last = 7*-3 = -21

Add together = 6x^2 -9x+14x -21

                       =6x^2 +5x-21 cm^2

If x=4

A = 6 (4)^2 +5(4) -21

   =6*16 +20-21

  =96+20-21

= 95 cm^2

New blanket with length 5 cm longer

Perimeter = 2(l+w)

l = 3x+7+5

l = 3x+12

                 = 2( 3x+12 + 2x-3)

Combine like terms

                 =2(5x+9)

Distribute

                  =10x+18  cm

               

ivann1987 [24]4 years ago
4 0

Answer:

New blanket with length 5 cm longer

Perimeter = 2(l+w)

l = 3x+7+5

l = 3x+12

                 = 2( 3x+12 + 2x-3)

Combine like terms

                 =2(5x+9)

Distribute

                  =10x+18  cm

Step-by-step explanation:

You might be interested in
Please help me idk this
Alchen [17]

Answer:

12/7

Step-by-step explanation:

can you give me brainliest?

have a great day!

6 0
3 years ago
Can someone show work for this problem, I need it I only have the answer...
wolverine [178]
If the area of the entire thing is 21.66 square inches, you can do the area of the entire thing-the area of the rectangle.  This is, 21.66-4.6*3.8.  21.66-17.48, which =4.18.
4 0
3 years ago
Manuel baked 30cookies.his family ate c them.using c, write an expression for the number of cookies that remained
makkiz [27]
30, they was buuuuuuuurnt
nah but 30-1
c=0 maybe lol
3 0
3 years ago
Read 2 more answers
Combine like terms to create an equivalent expression of 3.26d + 9.75d - 2.65
sleet_krkn [62]

Answer:

13.01 d -2.65

Step-by-step explanation:

3.26d + 9.75d - 2.65

Combine like terms

3.26d + 9.75d          - 2.65

13.01 d                     -2.65

4 0
4 years ago
When a factor x − k is raised to an odd power, the graph crosses the x-axis at x = k.
oksian1 [2.3K]

Answer:

The graph of g(x) = (x - 1) (x + 4)^3(x +5)^2 crosses the x-axis at (1,0) and (-4, 0). It touches the x-axis at (-5, 0).

Step-by-step explanation:

g(x):

g(x) = (x - 1) (x - (-4))^3(x - (-5)^2.

There are three factors:

  • (x - 1), where k = 1,
  • (x - (-4)), where k = -4, and
  • (x - (-5)), where k = -5.

The first and second factors are raised to odd powers. The graph will cross the x-axis at all these two points:

  • (1, 0) as a result of the factor (x - 1),
  • (-4, 0) as a result of the factor (x - (-4)).

The third factor is raised to an even power. The graph will touch the x-axis at that point.

  • (-5, 0) as a result of the factor (x - (-5)).
4 0
3 years ago
Read 2 more answers
Other questions:
  • What is 3.6 converted to a fraction?
    15·1 answer
  • The rainfall total this year was 10.2 inches which is 20% less than last year's total rainfall. What was last years total rainfa
    11·1 answer
  • Write the equation of the line given an x -intercept of 10 and y -intercept of 5.
    11·1 answer
  • The Venn diagram represents the results of a survey that asked participants whether they would want a fish or turtle as a pet. C
    6·1 answer
  • Best known for its testing program, ACT, Inc., also compiles data on a variety of issues in education. In 2004 the company repor
    8·1 answer
  • Math question, please help me
    14·1 answer
  • Solve for y. will give brainiest
    5·1 answer
  • I dont get this so cant help daughter
    14·1 answer
  • Si duplicó 5.000 Metros, Es igual a 100 km? SI O NO
    15·1 answer
  • What is the upper quartile in the box plot?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!