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3 years ago

Simplify , -4a^2b^2 + 6x^2y^3 - 15a^2b^2 + 3x^2y^2 + ab

Mathematics

1 answer:

Tpy6a [65]3 years ago

6 0

Answer:

ab + 3x²y² + 6x²y³ - 19a²b²

Step-by-step explanation:

All you do is combine like-terms:

-4a²b² - 15a²b² = -19a²b²

-3x²y² + 6x²y² = 3x²y²

Notice that ab and 6x²y³ do not have a like-term to pair up with. Moreover, if you are wondering why 3x²y² is written there instead of a 9x²y², I will show you why:

[-4a²b² + 6x²y³] - [15a²b² + 3x²y²] + ab

Polynomials are ALWAYS separated by grouping symbols. There is one more thing you should know about subtracting polynomials. Whenever you are subtracting polynomials, you just distribute the negative to avoid confusion.

I am joyous to assist you anytime.

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Students were asked to solve the following equation: -5x+2=-13

daser333 [38]

Answer:

Step-by-step explanation:

Step 1:

- 5x + 2 = - 13 Equation

Step 2:

- 5x = - 15 Subtract 2 on both sides

Step 3:

x = - 15 ÷ - 5 Divide

Answer:

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Hope This Helps :)

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3 years ago

A pilot was scheduled to depart at 4:00 pm, but due to air traffic, her departure has been delayed by 15 minutes. Air traffic co

AlladinOne [14]

Answer:

$y = \frac{x}{2}+15$ will be the equation that can be used to predict the number of minutes after 4:00 pm she will arrive at her destination.

Step-by-step explanation:

Let x represent the time, in minutes, of her original flight plan.

Let y represents the time, in minutes, of her new flight plan.

The time of Original flight schedule = 4:00 pm

The number of minutes delayed by Original flight = 15 minutes

As the new flight plan is two times faster than original flight plan.

So, the equation of new flight plan will be:

$y = \frac{1}{2}x$

$y = \frac{x}{2}$

But, the original flight plan was delayed by 15 minutes. Hence, the equation to predict the number of minutes after 4:00 pm she will arrive at her destination will become:

$y = \frac{x}{2}+15$

So, $y = \frac{x}{2}+15$ will be the equation that can be used to predict the number of minutes after 4:00 pm she will arrive at her destination.

Keywords: equation, problem solving, word problem

Learn more about system of equation from brainly.com/question/14280085

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4 years ago

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Solve the equation for the letter d: C= (3.14)(d)

PilotLPTM [1.2K]

Answer:

d = $\frac{C}{3.14}$

Step-by-step explanation:

Given

C = 3.14d ( isolate d by dividing both sides by 3.14 )

$\frac{C}{3.14}$ = d

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3 years ago

In the past ten years, the population of a city decreased from 90,000 to 75,000 Find the percent decrease.

vfiekz [6]

The answer is 31.5%.

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3 years ago

What is 4x4x4x5x5 using index notation

sdas [7]

Answer: 4³ × 5²

Step-by-step explanation:

Index Notation:

This is a short way of writing a number being multiplied by itself.

The base is the number itself and the power is the times the number is multiplied by itself.

With this we can now write the above multiplication in index notation.

we do it as follows : 4³ × 5²

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3 years ago

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