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
saveliy_v [14]
3 years ago
9

The perimeter of a rectangle is 56 feet and

Mathematics
1 answer:
Marat540 [252]3 years ago
4 0

Answer:

Step-by-step explanation:

P = 2(L + W)

Area = L*W

Area = 192

(L + W)*2 = 56

L+W = 28

L = 28 - W

W*(28 - W) = 192

28W - w^2 = 92

-w^2 + 28w - 192 = 0

w^2 - 28w + 192  = 0

This factors into

(w - 12)(w - 16) = 0

w - 12 = 0

w = 12

L = 28 - 12 = 16

You might be interested in
Which of the following equations correctly represents the law of cosines?​
ss7ja [257]

Answer:

I think it's C

Step-by-step explanation:

just looked online.

TIP:

If you want to remember this law,just solve a bunch of questions that involve it and then it will come naturally to you.

4 0
4 years ago
A pizza delivery shop averages 30 minutes per delivery with a standard deviation of 4 minutes. What is the probability that a pi
aev [14]

30  - 4 = 26
8 0
3 years ago
If three times a number added to 8 is divided by the number plus 7, the result is four thirds. Find the number.​
Marina86 [1]

9514 1404 393

Answer:

  4/5

Step-by-step explanation:

The wording is ambiguous, as it often is when math expressions are described in English. We assume you intend ...

  \dfrac{3n+8}{n+7}=\dfrac{4}{3}\\\\3(3n+8)=4(n+7)\qquad\text{multiply by $3(n+7)$}\\\\9n+24=4n+28\qquad\text{eliminate parentheses}\\\\5n=4\qquad\text{subtract $4n+24$}\\\\\boxed{n=\dfrac{4}{5}}\qquad\text{divide by 5}

The number is 4/5.

5 0
3 years ago
What is the volume of the prism?
ozzi

Answer:

Step-by-step explanation:

When you find the volume of prisms, you're essentially taking the area of the base and multiply it by the length, in varied orientations.

In this case, I'd start by finding the area of the parallelogram facing us.

The formula for a parallelogram's area is the same as a rectangle's:

A = b x h

In this case, h = 3 cm and b = 8 cm.

A = 24 cm²

Now, you multiple the area by the length of the parallelogram, which is 8 cm.

V = 24 cm² x 8 cm

= 192 cm³

I hope this helps!

3 0
3 years ago
Can someone help me please
iragen [17]

Answer:

  • initial value: 0
  • rate of change: 200 m/min
  • equation: H = 200T

Step-by-step explanation:

The initial value is always the value that corresponds to the independent variable being 0. Here, that's the first entry in the table. The initial Height is 0, when Time is 0.

__

The rate of change can be figured by looking at the change in Height for a change of 1 in Time. Here, the height changes by 200 m for every 1 min change in time. The rate of change is 200 m/min.

__

The equation can be written in slope intercept form using the rate of change and initial value:

  (dependent variable) = (rate of change)×(independent variable) + (initial value)

  H = 200T + 0

  H = 200T . . . . . . . . height in meters for time in minutes

6 0
3 years ago
Other questions:
  • Umm I need a lot pf help here im lost
    14·2 answers
  • Help on this problem
    11·1 answer
  • Sam is flying a kite. The length of the kite string is 80 meters, and it makes an angle of 75° with the ground. The height of th
    15·1 answer
  • For 2 weeks, Gabrielle raised money by selling magazines. She raised $72 during the second week, which brought her total to $122
    12·2 answers
  • What is the value of x in the equation 8x-2y=48, when y=4?.
    9·2 answers
  • Hunter took out a $3500 loan with interest to pay for some business supplies. He will repay The loan and three years with monthl
    5·1 answer
  • Find the values of a and b such that<br> x^2 + 3x + 4 = (x + a)^2+ b
    11·1 answer
  • Which graph can be used to find the solution to the system of equations below? 2x + y = -4 - 3y = 2x + 12 2 -4-3-2-1 -1 1 2 3 5
    8·1 answer
  • SOMEONE HELLLP MEEEE
    11·1 answer
  • Interpreting Points on Graphs of Proportional Relationships
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!