Answer:
(Choice C) C Replace one equation with a multiple of itself
Step-by-step explanation:
Since system A has the equations
-3x + 12y = 15 and 7x - 10y = -2 and,
system B has the equations
-x + 4y = 5 and 7x - 10 y = -2.
To get system B from system A, we notice that equation -x + 4y = 5 is a multiple of -3x + 12y = 15 ⇒ 3(-x + 4y = 5) = (-3x + 12y = 15).
So, (-x + 4y = 5) = (1/3) × (-3x + 12y = 15)
So, we replace the first equation in system B by 1/3 the first equation in system A to obtain the first equation in system B.
So, choice C is the answer.
We replace one equation with a multiple of itself.
Answer:
a) The set of natural numbers greater than or equal to 3 and less than or equal to 6.
b) {3,4,5,6}
Step-by-step explanation:
a) The Roster form is given as {6,8,10,12,...}
The descriptive form is a phrase that describes the given set.
The descriptive form is: <em>The set of even natural numbers greater than or equal to 6.</em>
b) The descriptive form is : The set of natural numbers greater than or equal to 3 and less than or equal to 6.
The Roster form is obtained by listing the numbers between 3 and 6 inclusive in curly brackets.
The Roster form is : {3,4,5,6}
1. Remove the parenthesis using the next rules:
2. Start to remove the parentheses from the center to the edges:
<h2>Then, the solution is 8</h2>
Answer:
3.87987×10^5
Step-by-step explanation:
surface area of the cylinder =2πrh+2πr²
=2*π*247*3+2*π*(247)²
=3.87987×10^5
Answer:
4/7 or 57%
There are 7 letters in the word "assists" and 4 of them are "s"
4 divided by 7 will give you the percentage
