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ivanzaharov [21]
3 years ago
15

Select the solutions of the equation. 2x2-3x-5=0

Mathematics
2 answers:
3241004551 [841]3 years ago
6 0

Answer:

x= -1,21/2

Step-by-step explanation:

meriva3 years ago
5 0

Using the Quadratic formula

your answer would be A and C

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Answer:

c. Independent measures; Factorial (two-way) ANOVA

Step-by-step explanation:

The answer to this question is the independent measures one way ANOVA. This is as we have these conditions light on or off and cold or warm room. Now we have to check how these factors are able to affect the amount of food pellets eat whenever they are in these experimental conditions.

option c is the correst answer. A factorial or two way anova is one with more than one factor or explanatory variable.

7 0
3 years ago
PLEASE I NEED ONE PERSON TO GIVE ME CORRECT ANSWER !!!
galben [10]
First one is 12^2
second one is 1
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3 years ago
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Which of the following ordered pairs could be the y-intercept of a function?
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4 years ago
solve the system of equations by finding the reduced row-echelon form of the augmented matrix for the system of equations. x-2y+
Alekssandra [29.7K]

Answer:

x = -5, y = -6, z = -3

Step-by-step explanation:

Given the system of three equations:

\left\{\begin{array}{l}x-2y+3z=-2\\6x+2y+2z=-48\\x+4y+3z=-38\end{array}\right.

Write the augmented matrix for the system of equations

\left(\begin{array}{ccccc}1&-2&3&|&-2\\6&2&2&|&-48\\1&4&3&|&-38\end{array}\right)

Find the reduced row-echelon form of the augmented matrix for the system of equations:

\left(\begin{array}{ccccc}1&-2&3&|&-2\\6&2&2&|&-48\\1&4&3&|&-38\end{array}\right)\sim \left(\begin{array}{ccccc}1&-2&3&|&-2\\0&-14&16&|&36\\0&-6&0&|&36\end{array}\right)\sim \left(\begin{array}{ccccc}1&3&-2&|&-2\\0&16&-14&|&36\\0&0&-6&|&36\end{array}\right)

Thus, the system of three equations is

\left\{\begin{array}{r}x+3z-2y=-2\\16z-14y=36\\-6y=36\end{array}\right.

From the last equation:

y=-6

Substitute it into the second equation:

16z-14\cdot (-6)=36\\ \\16z=36-84\\ \\16z=-48\\ \\z=-3

Substitute y = -6 and z = -3 into the first equation:

x+3\cdot (-3)-2\cdot (-6)=-2\\ \\x=-2+9-12\\ \\x=-5

7 0
4 years ago
beginning in 1996, a glacier lost an average of 3.7 meters of thickness each year. find the total change in its thickness by the
NemiM [27]
The answer I got was 59.2 
How I got it was that I counted how many years it was I got  16 years multiplied it by 3.7 and got 59.2
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4 years ago
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