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
Leno4ka [110]
4 years ago
12

Need help tremendously:)!!

Mathematics
1 answer:
Ray Of Light [21]4 years ago
8 0
For 12, do 26xpi. For 13, do 4x9.
You might be interested in
Please just help me with my last 3 question 8 and 9 area and perimeter
irinina [24]
8. Perimeter:5.9*2 or you can write 5.9+5.9 equals to 11.8 then add the 3.4
9.perimeter : 8.2+4.2+9.17
Area:(8.2*4.1)/2
3 0
2 years ago
A farmer needs to put in a fence in their rectangular field. If we look at the field from above, the cost of the west and east s
Liono4ka [1.6K]

Answer:

  • north and south sides are 38 8/9 ft long
  • east and west sides are 17.5 ft long

Step-by-step explanation:

<u>Short answer</u>: area is maximized when half the cost is spent in each of the orthogonal directions. This means the east and west sides will total $350 at $20 per foot, so will be 17.5 feet. The north and south sides will total $350 at $9 per foot, so will be 38 8/9 feet.

The dimensions that maximize the area are 17.5 ft in the north-south direction by 38 8/9 ft in the east-west direction.

__

<u>Long answer</u>: If x represents the length of the north and south sides, and y represents the length of the east and west sides, then the total cost is ...

  10y +10y +2x +7x = 700

  9x +20y = 700

  y = (700 -9x)/20

We want to maximize the area:

  A = xy = x(700 -9x)/20

We can do this by differentiating and setting the derivative to zero:

  dA/dx = 700/20 -9x/10 = 0

  350 -9x = 0 . . . . multiply by 10

  x = 350/9 = 38 8/9

  y = (700 -9(350/9))/20 = 350/20 = 17.5

The north and south sides are 38 8/9 ft long; the east and west sides are 17.5 ft long to maximize the area for the given cost.

6 0
3 years ago
Given f(x)= 17- x2, what is the average rate of change in f(x) over the interval [1, 5)?
makvit [3.9K]
-6 because it is yeah so
7 0
3 years ago
John uses 2/5 cup of orange juice for every 1/3 cup of pineapple juice to make a fruit punch. Write the number of cups of orange
user100 [1]
Answer : 1 1/5
Step by step explanation :
2/5 orange = 1/3 pineapple
There are multiple ways to go about with this problem, but let’s just go with one of the simplest : Multiplying by the same thing on both sides.
How do we get from 1/3 to 1? We multiply by 3. So, to find how many cups of orange juice we use we need to multiply by 3 too.
2/5 times 3 = 6/5
6/5 = 1 and 1/5
So 1 and 1/5 is the answers, have a great day, and mark brainliest if possible!
6 0
2 years ago
Can anyone help me?! Will give 20 points! Thank you!
Sphinxa [80]
6)
80+160+100+8x+8+5x+10=540
13x + 358 = 540
13x = 540 -358
13x = 182
x = 182/13
x = 14
answer x =14

7)
7x+13=8x-8
8x-7x=13+8
x = 21
answer x = 21
7 0
3 years ago
Other questions:
  • The length of a rectangle, l, is six meters more than its width, w. If the perimeter of the rectangle is 36 meters, what is the
    13·1 answer
  • In △ABC, point M is the midpoint of AC , point D∈ BM so that MD:DB=1:4. If ACMD=7 ft2, find ABDC, AAMB, and AABC.
    15·1 answer
  • How does the zero product property help you find the x-intercept of y = x² - x - 12?
    8·2 answers
  • A store has 263 board games. Sit has 100 fewer puzzles than board games. The store has 10 more action figures than puzzles. Writ
    11·2 answers
  • Write 0.0000000000048 as a multiple of a power of 10.
    7·2 answers
  • Angles X and Y form a straight line. Angles W and Z form a straight line. Angles X and W are beside each other. Angles Y and Z a
    6·2 answers
  • Some please help i’ll give brainliest
    10·1 answer
  • Daniel has 40 points and Zeke has 75. The opposing team has 150. It is Daniel's turn. How many points
    7·1 answer
  • Please help as soon as possibleeeee
    13·1 answer
  • I don’t know ans of 17 number say me answer
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!