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Korvikt [17]
2 years ago
10

I’m struggling with #10, please help!? :(

Mathematics
1 answer:
Tpy6a [65]2 years ago
6 0
Each number (i) is increased by 1 for the next number and are cubed.

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What is the discrimination of 3x^2+6x=2
Pavlova-9 [17]
60
D>0, there are 2 distinct real roots

Explanation:

3x2+6x−2=0
a=3,b=6,c=−2

The formula for discriminant is b2−4acSubstitute the given values.

b2−4ac
(6)2−4(3)(−2)
=60
therefore, D>0, there are 2 distinct real roots

8 0
3 years ago
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Find all solutions of the given system of equations (If the system is infinite many solution, express your answer in terms of x)
lisov135 [29]

Answer:

(a) The system of the equations \left \{ {2x-3y\:=3} \atop {4x-6y\:=3}} \right. has no solution.

(b) The system of the equations \left \{ {4x-6y\:=10} \atop {16x-24y\:=40}} \right. has many solutions y=\frac{2x}{3}-\frac{5}{3}

Step-by-step explanation:

(a) To find the solutions of the following system of equations \left \{ {2x-3y\:=3} \atop {4x-6y\:=3}} \right. you must:

Multiply 2x-3y=3 by 2:

\begin{bmatrix}4x-6y=6\\ 4x-6y=3\end{bmatrix}

Subtract the equations

4x-6y=3\\-\\4x-6y=6\\------\\0=-3

0 = -3 is false, therefore the system of the equations has no solution.

(b) To find the solutions of the system \left \{ {4x-6y\:=10} \atop {16x-24y\:=40}} \right. you must:

Isolate x for 4x-6y=10

x=\frac{5+3y}{2}

Substitute x=\frac{5+3y}{2} into the second equation

16\cdot \frac{5+3y}{2}-24y=40\\8\left(3y+5\right)-24y=40\\24y+40-24y=40\\40=40

The system has many solutions.

Isolate y for 4x-6y=10

y=\frac{2x}{3}-\frac{5}{3}

3 0
2 years ago
YOU'LL GET 50 POINTS IF U ANSWER THIS CORRECTLY! WILL MARK BRAINLEST!
ehidna [41]

Answer:

"Moving slowley" is the correct

Step-by-step explanation:

7 0
2 years ago
1296 ÷ 48 help me please
Elan Coil [88]
The answer in 27 $$$$$$$$$$$$$$$$$$$$$$$$
7 0
3 years ago
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The rectangular floor of colbys room is 9 feet long and 6 feet wide. What is the area of the floor
EastWind [94]

Answer:

  54 ft^2

Step-by-step explanation:

The area is the product of length and width:

  A = LW = (9 ft)(6 ft)

  A = 54 ft^2

The area of the floor is 54 square feet.

7 0
2 years ago
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