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omeli [17]
4 years ago
11

A basic variable in a linear system is a variable that corresponds to a pivot column in the coefficient matrix. Is this statemen

t true or​ false?A) True B) False
Mathematics
1 answer:
e-lub [12.9K]4 years ago
8 0

Answer:

A) True

Step-by-step explanation:

A basic variable is a variable that corresponds to a pivot column. A variable that does not corresponds to a pivot column is known as a free variable. It is required to row reduce the augmented matrix into echelon form so as to determine which of the variables are free and which of them are basic.

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A running track at a school is shaped like oval. The track is 1/2 miles long . Mr. Perez puts a marker down every 1/8 mile .
Lunna [17]

Answer:

4 markers

Step-by-step explanation:

1/2 miles divided by 1/8 miles equals 4 markers.

1/2 ÷ 1/8

Apply the fraction rule:

1/2 × 8/1

Cross cancel common factor 2:

= 4/1

= 4

Hope this helps!

4 0
3 years ago
Write a function with a zero of 1/2. Explain how you know.
AysviL [449]

Answer:

Simplest function is f(x) = 2x - 1

Step-by-step explanation:

When a function has a zero, simply put, that point is where the graph goes through the x-axis.  At this point, the y value is 0.

If a function has a 0 of 1/2, that translates to x = 1/2 and also (1/2, 0).  That means that y = 0 when x = 1/2.

If x = 1/2 and is a zero, then x - 1/2 = 0 and 2x - 1 = 0 (notice that y = 0 here and solving for x would get you right back to x = 1/2).

The simplest function with a zero of 1/2 is

f(x) = 2x - 1

You know it is true that the zero is 1/2 for two reasons.  First one is to set the right side equal to 0 and solve for x.

The second one is to graph the line y = 2x - 1 and see that it goes through the x axis at 1/2 where y = 0.

5 0
3 years ago
2√15 =√15/3 = 5<br> IS THIS STATEMENT CORRECT <br> PLS EXPLAIN WITH CORRECT ONE
shepuryov [24]

Answer:

2√15=2√5*3

√15/3=√5

5 is not equal to root 5,2√15 is not equal to 5 either

7 0
4 years ago
Mrs. Kelly brought a 9.3-ounce squash to her biology class. She asked her students: "What would the total weight of all the squa
Lena [83]
The answer is 93 ounces because its 9.3×10=93
4 0
4 years ago
If i stands for income and e stands for expenses, what is the formula for p, profits?
Zarrin [17]
Profit is calculated by subtracting the expenses from the income. So:
p = i - e
3 0
3 years ago
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