What is 1/2 of 14? this is an algebraic expression!!

Liam descended from the summit of K2 (elevation= 28,251.31 feet) to an elevation of 23,201.06 feet. How many feet did Liam desce

saul85 [17]

Laim descended 5,050.25 feet and his elevation changed by -5,050.25.

6 0

4 years ago

How do you solve this? r^2+32=12r

Andre45 [30]

Answer:

r = {-8, -4}

Step-by-step explanation:

Simplifying

r2 = -32 + -12r

Solving

r2 = -32 + -12r

Solving for variable 'r'.

Reorder the terms:

32 + 12r + r2 = -32 + -12r + 32 + 12r

Reorder the terms:

32 + 12r + r2 = -32 + 32 + -12r + 12r

Combine like terms: -32 + 32 = 0

32 + 12r + r2 = 0 + -12r + 12r

32 + 12r + r2 = -12r + 12r

Combine like terms: -12r + 12r = 0

32 + 12r + r2 = 0

Factor a trinomial.

(8 + r)(4 + r) = 0

Subproblem 1

Set the factor '(8 + r)' equal to zero and attempt to solve:

Simplifying

8 + r = 0

Solving

8 + r = 0

Move all terms containing r to the left, all other terms to the right.

Add '-8' to each side of the equation.

8 + -8 + r = 0 + -8

Combine like terms: 8 + -8 = 0

0 + r = 0 + -8

r = 0 + -8

Combine like terms: 0 + -8 = -8

r = -8

Simplifying

r = -8

Subproblem 2

Set the factor '(4 + r)' equal to zero and attempt to solve:

Simplifying

4 + r = 0

Solving

4 + r = 0

Move all terms containing r to the left, all other terms to the right.

Add '-4' to each side of the equation.

4 + -4 + r = 0 + -4

Combine like terms: 4 + -4 = 0

0 + r = 0 + -4

r = 0 + -4

Combine like terms: 0 + -4 = -4

r = -4

Simplifying

r = -4

Solution

r = {-8, -4}

3 0

3 years ago

Find the area of a rectangle 4 3/4 feet long and 2 feet long

omeli [17]

Answer:

9.5 ft^2

Step-by-step explanation:

It’s just 4.75 * 2

7 0

3 years ago

I attached the math problem below and I hope u guys help me. Thxs to who's gonna answer!

vova2212 [387]

Answer:

Numbers | least to greatest | opposites | opposites least to greatest

1/4, -1/2 | -1/2, 1/4 | -1/4, 1/2 | -1/4, 1/2

2, -10 | -10, 2 | -2, 10 | -2, 10

0, 3 1/2 | 0, 3 1/2 | 0, -3 1/2 | -3 1/2, 0

-5, -5.6 | -5.6, -5 | 5, 5.6 | 5, 5.6

24 1/2, 24 | 24, 24 1/2 | -24 1/2 -24 | -24 1/2 -24

-99.9, -100 | -100, -99.9 | 99.9, 100 | 99.9, 100

-0.05, -0.5 | -0.5, -0.05 | 0.5, 0.05 | 0.05, 0.5

-0.7, 0 | -0.7, 0 | 0.7, 0 | 0, 0.7

100.02, 100.04 | 100.02, 100.04 | -100.02, -100.04 | -100.04, -100.02

Hope this helps you!!!!

8 0

3 years ago

Sin(20)=x/670 ????????

mash [69]

Answer:

229.2

Step-by-step explanation:

Remark

There's a lot in this question. The x is not just any x. It is defined and limited by its relationship with the sine function.

The Sin is defined as Opposite over Hypotenuse in a right triangle. The 670 is the Hypotenuse. You know that by the definition of Sine.

So one thing you should always keep in mind: the x because of where it is in the definition, will always be smaller than the Hypotenuse. So you should get a value less than 670.

Formula

Just as you have it

Sin(20) = x / 670

Solution

Multiply both sides by 570

670 * sin(20) = x

sin(20) = 0.3420

x = 670 * 0.3420

x = 229.2

6 0

3 years ago