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
Ganezh [65]
3 years ago
15

Mr. Burn class is taking a field trip to the planetarium . The trip will cost 27$' for each student . There are 18 students in h

is class
Part A
Round each factor to estimate the total cost of the field trip
Mathematics
1 answer:
Goshia [24]3 years ago
5 0
The total cost will be $486. This is because if you take how much it costs which is $27 and multiply it by the # of students going, you get an approximate answer of $486. Hope this helps :)
You might be interested in
TOU
____ [38]
The answer is quadrant 2
7 0
4 years ago
Read 2 more answers
What is the domain restrictions for x=-6 and x=1
slavikrds [6]

Answer:

the domain in general is negative Infinity, infinity.

Step-by-step explanation:

Infinity means it is a straight line that goes on forever it never stops. graph the -6 and 1. I am not totally sure what domain restrictions are if you have an equation for it go a head and put it there and I can help you more.

8 0
3 years ago
You have been asked to design a can shaped like right circular cylinder that can hold a volume of 432π-cm3. What dimensions of t
rosijanka [135]

Answer:

Height = 12cm

Radius = 6cm

Step-by-step explanation:

Given

Represent volume with v, height with h and radius with r

V = 432\pi

Required

Determine the values of h and r that uses the least amount of material

Volume is calculated as:

V = \pi r^2h\\

Substitute 432π for V

432\pi = \pi r^2h

Divide through by π

432 = r^2h

Make h the subject:

h = \frac{432}{r^2}

Surface Area (A) of a cylinder is calculated as thus:

A=2\pi rh+2\pi r^2

Substitute \frac{432}{r^2} for h in A=2\pi rh+2\pi r^2

A=2\pi r(\frac{432}{r^2})+2\pi r^2

A=2\pi (\frac{432}{r})+2\pi r^2

Factorize:

A=2\pi (\frac{432}{r} + r^2)

To minimize, we have to differentiate both sides and set A' = 0

A'=2\pi (-\frac{432}{r^2} + 2r)

Set A' = 0

0=2\pi (-\frac{432}{r^2} + 2r)

Divide through by 2\pi

0= -\frac{432}{r^2} + 2r

\frac{432}{r^2} = 2r

Cross Multiply

2r * r^2 = 432

2r^3 = 432

Divide through by 2

r^3 = 216

Take cube roots of both sides

r = \sqrt[3]{216}

r = 6

Recall that:

h = \frac{432}{r^2}

h = \frac{432}{6^2}

h = \frac{432}{36}

h = 12

Hence, the dimension that requires the least amount of material is when

Height = 12cm

Radius = 6cm

3 0
3 years ago
FR.EE POINTS HAVE A GOOD DAY 100PTS :)
Law Incorporation [45]

Answer:

Thank u so much have a good day too

5 0
3 years ago
Read 2 more answers
Find the values of x and y
Dominik [7]
6x-6=5x+2\\
x=8\\\\
x+5=3y+7\\\\
8+5=3y+7\\
3y=6\\
y=2

4 0
3 years ago
Other questions:
  • Stephen is 2 years older than Sushil. krutika is 4 years younger than Sushil. If the total of their ages is 61, how old is the e
    9·2 answers
  • Marcus bought r r movie posters for $5 each. Write an algebraic expression for total amount Marcus spent.
    7·2 answers
  • PLEAS3E CHECK MY ANSWER
    13·1 answer
  • Describe this translation.
    10·1 answer
  • Which point is the vertex of the quadratic function f(x) = x^2-6+8?
    10·1 answer
  • WHERE WOULD THESE GOOO?
    13·1 answer
  • 2. You are trying to determine which box of Honey Nut Cheerios to buy. The Family Size box weighs
    15·1 answer
  • If x = 6 units, y = 3 units, and h = 4 units, find the area of the rhombus shown above using decomposition.
    8·1 answer
  • Which of the following equations do not represent a proportional relationship?
    14·1 answer
  • I need help fast i will mark brainliest
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!