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
scoray [572]
3 years ago
7

This is kind of off topic for math but I still need to know the answer, so I’ve finished all my math work and I know my work is

also correct but for some reason my grades drop down. I don’t understand why...
Mathematics
1 answer:
Mariulka [41]3 years ago
6 0

Answer:

email or call or talk to your teacher and ask why

Step-by-step explanation:

You might be interested in
Find the dimensions of the rectangle with area 256 square inches that has minimum perimeter, and then find the minimum perimeter
mezya [45]

Answer:

Dimensions: A=a\cdot b=256

Perimiter: P=2a+2b

Minimum perimeter: [16,16]

Step-by-step explanation:

This is a problem of optimization with constraints.

We can define the rectangle with two sides of size "a" and two sides of size "b".

The area of the rectangle can be defined then as:

A=a\cdot b=256

This is the constraint.

To simplify and as we have only one constraint and two variables, we can express a in function of b as:

b=\frac{256}{a}

The function we want to optimize is the diameter.

We can express the diameter as:

P=2a+2b=2a+2*\frac{256}{a}

To optimize we can derive the function and equal to zero.

dP/da=2+2\cdot (-1)\cdot\frac{256}{a^2}=0\\\\\frac{512}{a^2}=2\\\\a=\sqrt{512/2}= \sqrt {256} =16\\\\b=256/a=256/16=16

The minimum perimiter happens when both sides are of size 16 (a square).

4 0
3 years ago
PLEASE HURRY UP I WILL MARK YOU BRAINLYESTWith the passing of the 13th, 14th, and 15th Amendments to the U.S.Constitution, discr
andrey2020 [161]

Answer:

as that guy who commented said, its civil war amendments

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
14 bands volunteered but 7 played. How many lineups?
ankoles [38]

Answer:

3432

Step-by-step explanation:

Total bands = 14

Bands played = 7

The possible lineups can be calculated using Combination.

So, the possible lineups are 14C7

=> \frac{14!}{7!(14-7)!}

=> 3432

8 0
3 years ago
2(y+1) for y =2 (will pick brainliest if right)<br> A:6 <br> B:5 <br> C:7<br> D:8
Katen [24]

Answer:

A. 6

Step-by-step explanation:

pretty sure its right

5 0
3 years ago
Read 2 more answers
Parallelogram ABCD is a rectangle. What are the slopes of the sides that make this quadrilateral a rectangle?
snow_tiger [21]

Answer: -3 and 1/3

Step-by-step explanation:

There’s your answer

6 0
3 years ago
Other questions:
  • Fiona finds that the distance between two cities is 83,400,000 millimeters. What is the distance between the two cities in kilom
    10·2 answers
  • Need help with 15-17
    9·1 answer
  • Maria is a web designer who runs her own business. She charges and hourly rate of $136. When doing work for a client between 5 p
    10·2 answers
  • Please answer this correctly
    10·1 answer
  • Por qué la constitución de 1812 supuso un avance democrático? Choices : A: Porque acabó con el liberalismo. B: Porque acabó con
    9·1 answer
  • Two students, Ann and Max, factored the trinomial 4x2 − 6x − 4. Ann factored it as 2(x − 2)(2x + 1) and Max factored it as (x −
    12·1 answer
  • How many dogs are in a park if there are 15 dogs?
    8·2 answers
  • 1 + 2 + 3 + 4 + 5 + . . . is an example of a finite series.
    9·1 answer
  • What is the equation of 21 less than 11 times a number results in seven times a number decreased by 29 what is the number
    6·1 answer
  • The farmer owned 100 acres of land. A year later he bought more property and then owned 140 acres. Is this a percent increase or
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!