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3 years ago

I need to replace the carpet for my bedroom floor and the supplier wants to

Mathematics

2 answers:

I am Lyosha [343]3 years ago

6 0

Answer:

D. 120 square feet

Step-by-step explanation:

12×10=120

120 square feet

AysviL [449]3 years ago

5 0

Answer:

D) 120 square ft

Step-by-step explanation:

If he wants to know the area you just multiply 10 by 12 which is 120

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Twenty five high school students complete a preparation program for taking the SAT test. Here are the SAT scores from the 25 stu

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3 years ago

During a bike challenge, riders have to collect various colored ribbons. each 1/2 mile they collect a red ribbon, each 1/8 mile

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4 years ago

(a) use the pythagorean theorem to determine the length of the unknown side of the triangle, (b) determine the perimeter of the

ki77a [65]

Answer/Step-by-step explanation:

a. Unknown side, b, using the Pythagorean theorem is solved as shown below.

$b^2 = c^2 - a^2$

$b^2 = 45^2 - 27^2$

$b^2 = 1,296$

$b = \sqrt{1,296}$

$b = 36$

Unknown side, b, = 36 km

b. Perimeter of the triangle = sum of all the sides of the ∆ = $36 + 45 + 27$

$perimeter = 108 km$

c. Area of triangle = ½*base*height

where,

Base = 36 km

Height = 27 km

$Area = \frac{1}{2}*36*27$

$Area = 18*27$

$Area = 486 km^2$

7 0

3 years ago

8x^2+3xy+4y^2_12x^2+3xy-5y^2

antiseptic1488 [7]

Answer:

- 4x² + 6xy - y²

Step-by-step explanation:

8x² + 3xy + 4y² - 12x² + 3xy - 5y² ← collect like terms

= (8x² - 12x² ) + (3xy + 3xy) + (4y² - 5y²)

= - 4x² + 6xy - y²

7 0

2 years ago

Read 2 more answers

The width of a rectangle is 2 feet less than it’s length. Find it’s width of the perimeter is 68 feet

Svetradugi [14.3K]

Answer:

The length is 18 and the width is 16

Step-by-step explanation:

The sides of the rectangle are

Width: x-2

Length: x

To find the perimeter get all 4 sides and add them all up

x-2+x-2+x+x=68

4x-4=68

x=18

The length is 18 and the width is 16

7 0

3 years ago