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alina1380 [7]
3 years ago
9

Emery used row operations on an augmented matrix representing a system of equations and obtained

Mathematics
1 answer:
jarptica [38.1K]3 years ago
4 0

the perimeter of a semi circle whose radius is the perimeter of a semi circle whose radius is the perimeter

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Nicole is playing a video game where each round lasts 3/44 of an hour. She has scheduled 3 3/4 hours to play the game. How many
Marrrta [24]
Let's not think about the problem, let's think about the fractions and dividing. We're are trying to find how many sets of 3/44 are in 3 3/4. We need to divide. Using keep change and flip, we can divide successfully.
Let's make sure the first fraction is improper.
15/4÷3/44=?
Keep, Change, and Flip.
15/4×44/3
660/12
Let's simplify.
55.
So Nicole can play 55 rounds.
7 0
3 years ago
Vector u has its initial point at (15, 22) and its terminal point at (5, -4). Vector v points in a direction opposite that of u,
zzz [600]

Answer:

  D.  v=<20, 52>

Step-by-step explanation:

Vector u can be written in component form by subtracting its initial point from its terminal point:

  u = (5, -4) -(15, 22) = <-10, -26>

We are told that v = -2u, so ...

  v = -2<-10, -26> = <20, 52>

_____

Multiplying a vector by -1 reverses its direction; multiplying it by some factor k changes its magnitude by a factor of k. To reverse the direction and double the magnitude, we can multiply u by -2.

5 0
3 years ago
A player pays $1 to play a game where three fair dice are rolled. If three 6s are obtained the player wins $500, and otherwise t
Ugo [173]
The chance to win = 1 : 6³ = 1 / 216

To win $500, the player needs to pay $216 on average.
500/ 216 = 2.31
$2.31 win and $1 cost per game gives $1.31 net win.
5 0
3 years ago
What is the square root of 72
Andrej [43]

Answer:

8.48528137424

Step-by-step explanation:

5 0
4 years ago
Read 2 more answers
The smallest number by which 192 should be multiplied to make it a perfect cube is __
algol [13]

Answer: 9

Step-by-step explanation:

192 * 9 = 1728

Cube root of 1728 is 12

3 0
3 years ago
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