B2 - 4ac > -1 means the root is real. true or false??
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For quadratic equation the discriminant must be >=0 in order to have real roots.
That's FALSE. Imagine b²-4ac=-0.5
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The unit form and standard form of (2 tens 1 one) x 10?
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Answer:
No, Isiah is not correct. The GCF of the coefficients is 1, and there are no common variables among all three terms of the polynomial. 5b4 is a factor of -25a2b5 and -35b4, but not a3. Additionally, a2 is a factor of a3 and -25a2b5, but not -35b4. 1 is the GCF of the coefficients. There are no common variables among all three terms of the polynomial. 5b4 is the GCF of –25a2b5 and –35b4, but not a3. a2 is a factor of a3 and – 25a2b5, but not –35b4.
Considering the multiplciation of the GCF of the numeric terms and of the variables, the GCF of the polynomial is of 1, hence he is not correct.
What is the greatest common factor of a polynomial?
It is the multiplication of the GCF of the numeric constants by the GCF of the coefficients.
In this problem:
- The coefficients of a are 3, 2 and 0, hence the GCF is
.
- The coefficients of b are 0, 5 and 4, hence the GCF is
.
- As for the numeric term, the terms are 1, 25 and 35, hence the GCF is 1.
Thus:
As Isaiah did not take into account the coefficients that are zero, his calculation is not correct.
More can be learned about the greatest common factor at brainly.com/question/6032811
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The solution to the system of equations y = -2x + 4 and y = 1/2x + 4 is the point (0, 4)
Calculating the solution to the system
A system of equations is a set of two or more equations that are to be solved simultaneously.
The solution of a system of equations is a set of values that satisfy all the equations in the system.
Given the equations:
y = -2x + 4
y = 1/2x + 4
The question implies that we solve graphically
So, we create a plot of the equations y = -2x + 4 and y = 1/2x + 4
And we write out the coordinate of the point of intersection between the two equations
From the graph of the system of equations (see attachment), we have the point of intersection to be (0, 4)
This means that the solution to the system of equations is (0, 4)
Find more on equation at:
#SPJ1
Complete question
Solve the system of equations graphed on the coordinate axes below.
y = -2x + 4
y = 1/2x + 4
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15, how many RED marbles are in the bag?
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Rearranging the above equation and simplifying gives the quadratic:
which factorizes to:
(r - 4)(r + 3) = 0
Therefore r = 4. there are 4 RED marbles in the bag.
Answer:
6
Step-by-step explanation:
BECAUSE.
Answers
Answers
thsi one
2x-5y=-35
-5y=-2x-35
y=2/5x+7
slope=2/5
2/5 times -5/2=-1
y=-5/2x+b
findn b
(10,4)
(x,y)
4=-5/2(10)+b
4=-25+b
21=b
y=-5/2x+21
2y=-5x+42
5x+2y=42