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bazaltina [42]
3 years ago
15

True False Problem Enter T or F depending on whether the statement is true or false. (You must enter T or FTrue and False will n

ot work.)
1. If the solution to a system of linear equations is given by (4 - 2z, -3 +z, z), then (4, -3, 0) is a solution to the system
2. If the number of rows of an augmented matrix in reduced row-echelon form is greater than the number of columns (to the left of the vertical bar), then the system has infinitely many solutions
3. If a matrix is in reduced-row echelon form, then the first nonzero entry in each row is a 1 and has O's below it.
Mathematics
1 answer:
slamgirl [31]3 years ago
5 0

Answer:

t

Step-by-step explanation:

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I need help with 3,4,5<br> Please!!
gladu [14]
3. g(x) = x^2 - 5x + 3
    g(-3) = -3^2 - 5(-3) + 3
    g(-3) = 9 + 15 + 3
    g(-3) = 27 <==

4. 4(7b + 15f - 8f) =
    4(7b + 7f) =
     28b + 28f <===

5. C = 2.50r + 15
    for 5 rolls...r = 5
    C = 2.50(5) + 15
    C = 12.50 + 15
    C = 27.50...its A
3 0
3 years ago
Estimate the sum by rounding to the nearest whole number 18.74+41.49
satela [25.4K]
Hello!

I'll start w/ 18.74 to round. To round 18.74, the 4 wouldn't have any effect raising the 7's value, since anything 4 and below won't increase the number's value. Now you just have 18.7. The 7 will increase the 8's value to a 9, since anything 5 and up will increase the rounded number's value. So 18.74 is now rounded up to 19.

For 41.49, you'll round the 4 to a 5, since 9 will increase the value of the 4. Now you have 41.5. The newly rounded 5 will then increase the 1's value, making it a 2. So now 41.49 is now rounded up to 42.

You can now estimate the sum by adding 19 w/ 42 to get an estimate of 61!

I hope this helps!!! 
6 0
3 years ago
Solve for a.<br><br> a+(−1.3)=−4.5
Debora [2.8K]
The answer to it is -3.2 or -3 1/5
7 0
3 years ago
Which inequality is represented by this graph?<br> f(0, 1)<br> (5,0)
Novosadov [1.4K]

Answer:

I would say C.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
With an investment of $15,440, Juan wants to purchase shares of Carmax valued at $42.50, Chipotle at $51.50, and Dollar General
siniylev [52]

Answer: your answer is negative $88.31

Step-by-step explanation:

$15,440 minus $42,50 minus $51,50 minus $9,75= negative $88.31

4 0
3 years ago
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