MATHEMATICS HIGH SCHOOL

Multiply the problem,

Answers

Answer 1

Answer:

Answer:

The answer to your question is the letter B

Step-by-step explanation:

Data

| 5 0 | | 2 - 1 |

| 3 -5 | | 2 - 2|

Process

1.- This is the product of two matrices 2 x 2 so the result will be a 2 x 2 matrix.

- Multiply the first row of the first matrix by the first column of the second matrix.

-Multiply the first row of the first matrix by the second column of the second matrix.

- Multiply the second row of the first matrix by the first column of the second matrix.

-Multiply the second row of the first matrix by the second column of the second matrix.

| 5 0 | | 2 - 1 | | (5 x 2) + (0 x 2) (5 x -1) + (0 x -2) |

| 3 -5 | | 2 - 2| = | (3 x 2) + (-5 x 2) (3 x -1) + (-5 x -2)|

= | 10 + 0 -5 + 0 |

| 6 - 10 -3 + 10|

= | 10 - 5 |

| -4 7|

Related Questions

A kid's pool had a small opening though which water leaked out sometimes. Water was poured into the pool from time to time. The graph below shows the amount of water in the pool (y), in gallons, at a certain time (x), in hours:Graph of first line going through ordered pairs 0, 40 and 2, 10. Graph of second line going through ordered pairs 2, 10 and 4, 10. Graph of third line going through ordered pairs 4, 10 and 7, 50.Which of the following statements best describes the amount of water in the pool?It is increasing during the time interval 4 < x < 7 hours.It is increasing during the time interval 10 < x < 50 hours.It is decreasing during the time interval 4 < x < 7 hours.It is decreasing during the time interval 10 < x < 50 hours.
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What is 3.36 rounded to the nearest hundreth
(Helpppp)Write slope-intercept form of the line which is perpendicular bisector toa segment with endpoints A(5,9), B(7,13).

A cheetah ran 300 feet in 2.92 seconds. what was the cheetah's average speed in miles per hour?

Answers

(300 ft/2.92 sec)(1 mi/ 5280 ft)(3600 sec/1 hour) = {3001·3600 miles)/(2.92·5280·1 hour) = 91080000 miles/15417.6 hours = 70.05 mph

Solve the following system of equations for all three variables.5x−2y+z = 8
−9x+2y+2z = 5
−9x−2y−5z = 4

Answers

  5x - 2y + 1z = 8 ⇒   5x - 2y + 1z = 8
-9x + 2y + 2z = 5 ⇒ -9x + 2y + 2z = 5
-9x - 2y - 5z = 4 -4x + 3z = 13

5x - 2y + 1z = 8
-9x + 2y + 2z = 5 ⇒ -9x + 2y + 2z = 5
-9z - 2y - 5z = 4 ⇒ -9x - 2y - 5z = 4
-18x - 3z = 9

-4x + 3z = 13
  -18x - 3z =   9
-22x = 22
  -22 -22
  x = -1
  -18x - 3z = 9
-18(-1) - 3z = 9
18 - 3z = 9
- 18 - 18
-3z = -9
-3 -3
z = 3

5x - 2y + z = 8
5(-1) - 2y + 3 = 8
-5 - 2y + 3 = 8
-2y - 5 + 3 = 8
-2y - 2 = 8
  + 2 + 2
  -2y = 10
-2   -2
y = -5
  (x, y, z) = (-1, -5, 3)

Use elimination method to solve
5x+y=-10
7x-3y=-36

Answers

$5x+y=-10\n \n 7x-3y=-36$

Let's multiply the first equation by 3. (As you can see y's coefficient in the first one is 1 and in the second one is -3 , we will multiply the first equation by 3 so when we add the equations their sum will be 0)

$3\cdot (5x+y)=3\cdot -10\n \n 15x+3y=-30$

Now let's add this new equation and our second equation.

$7x-3y=-36\n \n 15x+3y=-30\n \n (15x+3y)+(7x-3y)=(-30)+(-36)\n \n 15x+7x+3y-3y=-30-36\n \n 22x=-66\n \n x=\frac { -66 }{ 22 } \n \n x=-3$

We found x=-3

Now let's plug x's value in one of the equations to find y's value.

$x=-3\n \n 5x+y=-10\n \n 5\cdot -3+y=-10\n \n -15+y=-10\n \n y=-10+15\n \n y=5$

So we found y=5

Solution ;

(-3, 5)

What would be the answer if I substituted the x for zero?
plz help!!

Answers

The answer would be -5

The answer would be negative five. Anything multiplied by zero is zero so that cancels the 2x^3, leaving you 0-5. Which is -5.

A set of equations is given below: Equation C: y = 7x + 12 Equation D: y = 7x + 2 Which of the following best describes the number of solutions to the given set of equations? One solution Two solutions Many solutions No solution

Answers

There is no solution. If you sub in either equation for y you get =0 meaning there is no solution :) hope this helps

Answer:

its none i got it right

Step-by-step explanation:

PLEASE HELP! (don't graph, give me the coordinates and i will graph myself)

Answers

9514 1404 393

Answer:

see below for a table

Step-by-step explanation:

You can easily identify intercept points by solving for one variable when the other is zero.

x-intercept (y=0)

4x = 12

x = 12/4 = 3

y-intercept (x=0)

-3y = 12

y = 12/-3 = -4

So, the coordinate pairs of these points are ...

(3, 0) and (0, -4)

If you solve for y, you get ...

-3y = 12 -4x

y = (4/3)x -4 . . . . . divide by -3

This suggests that x being a multiple of 3 will be useful for finding integer values of y.

We already have points for x=0 and x=3. We can add points for x=6 and x=-3.

y = 4/3(6) -4 = 4

y = 4/3(-3) -4 = -8

So, the additional points are ...

(6, 4) and (-3, -8)

Answer:X=3

y= -4

Step-by-step explanation:

If we're solving for x or y, then the intercept we're not solving for is equal to zero. Solving for y means x=0, solving for x means y=0.

so solving for x, 4x=12--> x=3, since y=0 in this scenario.

Solving for y, x=0, so -3y=12--> y=(-4)

Other Questions

Expanded form of 38 million hundred thousand and eight

An airplane over the Pacific Ocean sights an atoll at an 7° angle of depression. If the plane is 663 m above the water, how many kilometers is it from a point 663 m directly above the atoll?(Hint: Make sure your calculator is in degrees!)A. 5399.7 km B. 5.4 km C. 81.41 km D. 760.8 km

What is the quotient (x^3+8)/(x+2)

12.5% of what number is 24? Please help and show work