Answer:
Mathematics uses numbers and data to find ways to describe relationships, importance, value, dependency/independency of variables, and many other things. These computations and concepts are essential to the world because of our human need to make comparisons and place value on things.
Step-by-step explanation:
Answer:
(x - 5) (x - 7)
Step-by-step explanation:
<em><u>To factor this trinomial, you must split the middle term (-12x) into two terms that can be added to get -12x, and multiplied to get 35:</u></em>
<em><u /></em>
- 12x + 35
-7x - 5x + 35
<em><u>Group:</u></em>
( -7x) (-5x + 35)
<em><u>Take out the GCF (Greatest Common Factor):</u></em>
x(x - 7) -5(x - 7)
(x - 5) (x - 7)
Answer:
x=10 5x=50 2x=20
Step-by-step explanation:
5x+2x+110=180
180-110=70
7x=70
x=10
5*10=50
2*10=20
9514 1404 393
Answer:
2.5 hours
Step-by-step explanation:
The price of stock A is described by ...
A = 14.63 + 0.09t . . . . . . where t is time in hours after 9 A.M.
And the price of stock B is ...
B = 15.13 - 0.11t
The two prices will be equal when ...
A = B
14.63 +0.09t = 15.13 -0.11t
0.20t = 0.50 . . . . . . . . . . . . . add 0.11t -14.63 to both sides
t = 0.50/0.20 = 2.5
The prices of the two stocks will be the same in about 2.5 hours.
Answer: 15
√
2
Step-by-step explanation:
Equilateral triangles have three equal side lengths, three equal angles of 60 degrees, and three equal altitudes.
You would think that the height of an equilateral triangle would also be equal to it's sides, but it's not. The formula for height is: side/2 x √3
10√6 / 2 * √
3 = 15
√
2
The decimal form: 21.2
