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
irakobra [83]
3 years ago
9

Help!!!! please!!!! thank you!!!!!!

Mathematics
1 answer:
pentagon [3]3 years ago
6 0

Answer:

18) 6x^2-7x-5

19) 20x^2+17x-63

20) 18x^2-20x+2

21) 5x^2+42x+16

Step-by-step explanation:

Perimeter=length×breadth

18) (3x-5)(2x+1)

=6x^2+3x-10x-5

=6x^2-7x-5

19) (4x+9)(5x-7)

=20x^2-28x+45x-63

=20x^2+17x-63

20) (18x-2)(x-1)

=18x^2-18x-2x+2

=18x^2-20x+2

21) (5x+2)(x+8)

=5x^2+40x+2x+16

=5x^2+42x+16

You might be interested in
Given the equation y = 0.2 x 4^x , find x when y = 1000
Gnoma [55]

Answer:

i guess x = 0 lololololololollol

6 0
3 years ago
12 (x+1/6) = 8 20 points
Aliun [14]

Answer:

12x + 2

Step-by-step explanation:

12 is multiplyed by both the x and the (1/6) since it is outside the equation.

so 12 times x = 12x since we dont know what x is

and 12 times (1/6) = (12/6) = 2

7 0
3 years ago
Zoe has 5 pounds of potatos she has multiple recipes that require 3/4 pound of potatoes how many recipes will she be able to mak
Natali [406]
Amount of potatoes that Zoe has = 5 pounds
Quantity of potatoes that Zoe need for each recipe = 5/(3/4) 
                                                                                 = 5 * (4/3) 
                                                                                 = 20/3 
                                                                                 = 6 2/3 
From the above deduction, we can conclude that only 6 recipes can be made. The remaining amount of 2/3 will remain unused. I hope the procedure is clear enough for you to understand.
5 0
3 years ago
Read 2 more answers
Your car gets 30 miles per gallon of gasoline. if you drive your car at 45 miles per hour, how much gasoline do you use in an ho
Xelga [282]

Answer:

1.5

Step-by-step explanation:

45 divided by 30 = 1.5

Hope this helps

8 0
3 years ago
F(x) = 4x + 2; find f(8)
likoan [24]

Answer:

f(8)=34

Step-by-step explanation:

To solve, you just substitute x for 8

4(8) + 2

32 + 2

F(8) = 34

8 0
3 years ago
Other questions:
  • Compare 0.3 and 0.8 using >,=,or <. Draw a model or number line to support your solutions
    13·1 answer
  • Lenz father is paying for a $20 meal. He has a 15%-off coupon on his meal. After the discount, a 7% sales tax is applied. How mu
    6·1 answer
  • Wath is the fraction 4over10 plus 3over5
    9·2 answers
  • I am making oatmeal cookies and one batch calls for 2 3/4 cups of flour. If I am going to make 4 batches, how many cups of flour
    15·2 answers
  • What is the perimeter of the rectangle in the coordinate plane​
    7·2 answers
  • Rachel, Mario and Sanjit share some money in the ratios 4:3:9
    5·1 answer
  • Y = f(x) = 1*<br> Find f(x) when x = 0.
    11·1 answer
  • 3 in 3.62 stands for 3
    14·1 answer
  • How the Industrial Revolution changed American Economics.
    5·1 answer
  • Distribute to write an equivalent expression. 2n * (n ^ 2 + 3n + 4)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!