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3 years ago

12 yards = ______________ feet

Mathematics

2 answers:

Mashutka [201]3 years ago

8 0

Answer:

36 feet

Step-by-step explanation:

One yard is 3 feet.

12 yards * 3 feet = 36 feet

LenKa [72]3 years ago

6 0

Answer:

Step-by-step explanation:

1 yard=3 feet so

12 yards = 3x12 feet

12 yards = 36 feet

Hope this helps! :)

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What is the equation in point−slope form of the line passing through (1, 2) and (2, 5)?

Gwar [14]

Answer:

Step-by-step explanation:

First, find the slope by using change in y divided by change in x.

Change in y = 5 - 2 = 3

Change in x = 2 - 1 = 1

This means that the slope is 3/1 = 3.

Then, you put it in the point-slope form so:

(y - 2) = 3(x - 1)

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3 years ago

A convenience store purchased a magazine and marked it up 100% from the original cost of $2.30. A week later, the store placed t

77julia77 [94]

Answer:

$2.30

Step-by-step explanation:

The original price is $2.30 an it goes up by 100% which means another 2.30. So add 2.30 and 2.30 together you get 4.60 now divide that by two since the magazine is 50% off and you get the original price which was 2.30

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3 years ago

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Choose the kind(s) of symmetry. (Select all that apply)

Phoenix [80]

Answer:

H has Point , Line and plane symmetry

D has Line and plane symmetry

3 has line symmetry

F has none

E has line and plane symmetry

2 has none

Step-by-step explanation:

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3 years ago

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A rectangle with a length of L and a width of W has a diagonal of 10 inches. Express the perimeter P of the rectangle as a funct

KatRina [158]

<h2>Answer:</h2>

The expression which represents the perimeter P of the rectangle as a function of L is:

$Perimeter=2(L+\sqrt{100-L^2})$

<h2>Step-by-step explanation:</h2>

The length and width of a rectangle are denoted by L and W respectively.

Also the diagonal of a rectangle is: 10 inches.

We know that the diagonal of a rectangle in terms of L and W are given by:

$10=\sqrt{L^2+W^2}$

( Since, the diagonal of a rectangle act as a hypotenuse of the right angled triangle and we use the Pythagorean Theorem )

Hence, we have:

$10^2=L^2+W^2\\\\i.e.\\\\W^2=100-L^2\\\\W=\pm \sqrt{100-L^2}$

But we know that width can't be negative. It has to be greater than 0.

Hence, we have:

$W=\sqrt{100-L^2}$

Now, we know that the Perimeter of a rectangle is given by:

$Perimeter=2(L+W)$

Here we have:

$Perimeter=2(L+\sqrt{100-L^2})$

7 0

4 years ago

Perform the indicated operation to write given polynomial in standard form: (2x^3 − 6x^2 − 7x − 2) +(x^3 +x^2 +6x − 12)

Kipish [7]

Answer:

$\left(2x^3-6x^2-7x-2\right)+\left(x^3+x^2+6x-12\right)=3x^3-5x^2-x-14$

Step-by-step explanation:

To add the polynomials

Remove parentheses:

$\left(2x^3-6x^2-7x-2\right)+\left(x^3+x^2+6x-12\right)=2x^3-6x^2-7x-2+x^3+x^2+6x-12$

Group like terms:

$=2x^3+x^3-6x^2+x^2-7x+6x-2-12$

Add similar elements:

$=3x^3-6x^2+x^2-7x+6x-2-12\\=3x^3-5x^2-7x+6x-2-12\\=3x^3-5x^2-x-2-12\\=3x^3-5x^2-x-14$

The Standard Form for writing down a polynomial is to put the terms with the highest degree first,its term of 2nd highest is 2nd etc..

In our case the standard form is

$\left(2x^3-6x^2-7x-2\right)+\left(x^3+x^2+6x-12\right)=3x^3-5x^2-x-14$

3 0

3 years ago