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
Romashka [77]
3 years ago
12

The length of a rectangle is double its width. The perimeter of the rectangle is 36 feet. What is the area, in square

Mathematics
1 answer:
Inga [223]3 years ago
7 0

Answer:

72 square feet

Step-by-step explanation:

In the attached file

You might be interested in
Which of the following sets could be the sides of a right triangle?
coldgirl [10]

Answer: Choice B) {3, 5, sqrt(34)}

=====================================

Explanation:

We can only have a right triangle if and only if a^2+b^2 = c^2 is a true equation. The 'c' is the longest side, aka hypotenuse. The legs 'a' and 'b' can be in any order you want.

-----------

For choice A,

a = 2

b = 3

c = sqrt(10)

So,

a^2+b^2 = 2^2+3^2 = 4+9 = 13

but

c^2 = (sqrt(10))^2 = 10

which is not equal to 13 from above. Cross choice A off the list.

-----------

Checking choice B

a = 3

b = 5

c = sqrt(34)

Square each equation

a^2 = 3^2 = 9

b^2 = 5^2 = 25

c^2 = (sqrt(34))^2 = 34

We can see that

a^2+b^2 = 9+25 = 34

which is exactly equal to c^2 above. This confirms the answer.

-----------

Let's check choice C

a = 5, b = 8, c = 12

a^2 = 25, b^2 = 64, c^2 = 144

So,

a^2+b^2 = c^2

25+64 = 144

89 = 144

which is a false equation allowing us to cross choice C off the list.

7 0
3 years ago
What is ? |-15| + |-1| =
balu736 [363]

Answer:16

Step-by-step explanation:The lines that are outside of the numbers keep the numbers positive so if you change them to positive number (15+1) you can add them and it gives you 16

8 0
2 years ago
Read 2 more answers
While visiting a​ memorial, a person approximated the angle of elevation to the top of the memorial to be 35º. After walking 255
Alenkasestr [34]

Draw a diagram to illustrate the problem as shown in the figure below.

Let h the height of the hill. =

At position A, the angle of elevation is 40°, and the horizontal distance to the foot of the hill is x.

By definition,

tan(40°) = h/x h = x tan40 = 0.8391x

(1)

At position B, Joe is (x - 450) ft from the foot of the hill. His angle of elevation is

40 + 18 = 58°.

By definition, tan(58°) = h/(x - 450)

h = (x - 450) tan(58°) = 1.6003(x-450)

h = 1.6003x - 720.135 (2)

Equate (1) and (2).

1.6003x - 720.135 = 0.8391x 0.7612x = 720.135

x = 946.0523

From (1), obtain

h = 0.8391*946.0523 = 793.8 ft

Answer: The height of the hill is approximately 794 ft (nearest integer)

6 0
2 years ago
What is the value of x in: 4x+3y=12 and 2x-3y=-30 *
NNADVOKAT [17]

Answer:

The value would be

Step-by-step explanation:

What is the value of x in: 4x+3y=12 and 2x-3y=-30 *

4x + 3y

The answer is x = 2 - 3y = 4

3y = 30

So 2x + 3y = 12 is

X = 3 - 3y/4

2x - 3y = 30

X = 15 + 3y/2

Hope it help : ) Please Rate it for me!

Have a Great Day and Winter Break!

6 0
3 years ago
Which expression does the graphic represent? 8 positive tiles. 1 tile is crossed out. 7 minus 1 7 minus (negative 1) 8 minus 1 8
Tanzania [10]

Answer:

7-(-1)

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Other questions:
  • BRAINLIESTTT ASAP!! :)<br><br> How do you know if a parabola has a maximum or a minimum?
    11·2 answers
  • Ten divided by the difference of a number and 2​, minus 9 divided by a number plus 2​, equals 5 times the reciprocal of the diff
    7·1 answer
  • -5x+10x+3=5x+6<br> Along with an explanation please.
    13·1 answer
  • To control pollination, pollen-producing flowers are often removed from the top of corn in a process called detasseling. The hou
    15·1 answer
  • A researcher found a study relating the distance a driver can see, y, to the age of the driver, x. When researchers looked at th
    14·1 answer
  • To which subsets of real numbers does the number -22 belong? Choose all subsets that apply. theres only 2 btw
    11·2 answers
  • What are the variables of the graph shown to the right? Describe how the variables are related at various points on the graph.
    15·1 answer
  • The yearbook staff receive 75 submissions for yearbook articles. Paul will accept 2/5 of all submissions. Currently, Paul plans
    7·1 answer
  • 10. How many solutions does this system of equations have? Explain how you know.
    9·1 answer
  • Mark is cutting construction paper into rectangles for a project. He needs to cut one rectangle that is 12 inches × 13 1/3 inche
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!