MATHEMATICS HIGH SCHOOL

a car travels 10 kilometers per hour faster than a truck .the car goes 600 kilometers in 5 hours less time than it takes thetruck to travel the same distance.find the rate of each vehicle in kilometers per hour

Answers

Answer 1

Answer:

Answer:

60 km/h

Step-by-step explanation:

Your welcome :)

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Complete the ordered pair so that it is a solution of 2/3x + y - 1 = 0.

Sin 86° > sin 58° is it true or false

Answers

put it in your calculator

Hello,

sin(x) is growing from 0 to 1 while x is growing from 0° to 90°
True

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

Answers

Answer:

-8x² + 28x - 20

Step-by-step explanation:

To simplify the expression A(x) = ( 2x - 5 )( x + 1 ) - ( 5x - 3 )( 2x - 5 ), you can start by using the distributive propertyto expand both sets of parentheses and then combine like terms:

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

Expand the first set of parentheses.

( 2x - 5 ) ( x + 1 )

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

2x² + 2x - 5x - 5

Now, expand the second set of parentheses.

( 5x - 3 ) ( 2x - 5 )

5x ( 2x ) + 5x ( -5 ) - 3 ( 2x ) - 3 ( -5 )

10x² - 25x - 6x + 15

Now, let's combine like terms within each part.

2x² + 2x - 5x - 5 - ( 10x² - 25x - 6x + 15)

Distribute the negative sign to both terms in the second parentheses.

2x² + 2x - 5x - 5 - 10x² + 25x + 6x - 15

Combine like terms in the entire expression.

( 2x² - 10x² ) + ( 2x - 5x + 25x + 6x ) + ( -5 - 15 )

Simplify further.

-8x² + 28x - 20

∴ A ( x ) = -8x² + 28x - 20

In which quadrant is the number –14 – 5i located on the complex plane?

Answers

The complex plance is just like the trigonometric plane except the case is just the x plane pertains to the imaginary part of teh number and the y axis pertains to the real part of the number. In the number -14-15i, x axis is negative and y axis is also negative. Hence the number should belong to quadrant III.

the answer will be 5i+6

Suppose Richard walks 1 kilometer every 10 minutes.how many meters further can he walk in 1 hour at this new rate?explain how you found your answer.

Answers

This Problem Is Actually Quite Simple If You Look. There Are 60 Minutes In One Hour. A Proportional Relationship Will Help.
10 60
---- = ---
1 X

10X = 60.
-------------
10 10
X = 6.

Since X = 6, That Means Richard Can Walk 6 kilometers In One Hour. :D
I Hope This Helps You!

A rectangle measure 11cm by 30cm.What is its area

Answers

well, 11*30 is equal to 330cm

330 cm. Area=11cm*30cm

: Resolver el sistema de ecuaciones por el método de reducción. -x + 3y = 6 x + y = 2

Answers

Answer:

$x=0\ny=2$

Step-by-step explanation:

El método de reducción también llamado Suma y Resta, consiste en multiplicar una o ambas ecuaciones de tal manera que los coeficientes de una de las incógnitas sean iguales y de signo contrario, de tal forma que se eliminen al sumar las ecuaciones.

Nuestras ecuaciones son:

$-x+3y=6\nx+y=2$