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3 years ago

What is the value of the expression 2x2 + 3x-y – 4y2 when x = 2 and y = –4?

1 answer:

7 0

Write the problem: 2x^2+3x-y-4y^2
Substitute x and y: 2(2)^2+3(2)-(-4)-4(-4)^2
Exponents and Multiplication: 8+6+4-64
Add and Subtract: -46

Your Answer is -46

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What is another way to write 3427.68 divided by 54

skad [1K]

3427.68/54 could be another way

4 0

3 years ago

Read 2 more answers

(2/5)^-2(-3)^4<br><br> What is the equivalent?

Nikolay [14]

Answer:

-8100

Step-by-step explanation:

(2/5)^-2(-3)^4

Given data

and second term

The first term= (2/5)^-2 and

Second term=(-3)^4

Simplify the first term

(2/5)^-2= 2^-2/ 5^-2= 1/2^2 * 1/5^2

=1/4/ 1/25

=1/4*25/1

=100

Simplify the second term

=(-3)^4

= -81

Hence, 100*81

=-8100

8 0

2 years ago

I need help with this

9966 [12]

Answer:

$2.75

Step-by-step explanation:

You would divide the total (13.75) by the amount of crayons he got (5 packs) and you get your answer.

7 0

3 years ago

6.7 more than the product of 5 and n

Jlenok [28]

6.7 5 n More than means + Product of means • So 6.7+(5n)

8 0

3 years ago

Now find another real world example (it can be a similar range problem). Graph it on a number line, and then explain the minimum

Kaylis [27]

The real world example for the absolute value are to express the change in balance of account.

How to use absolute value in real world problem?

Absolute value in real world problem is used to express the change or variation from one point to another point. In the absolute value, the sign of the number is not consideredd.

Let a real world example-

Everyone is going with 20 km/h and a person x is going with 15 km/h.
The person x has most likely to get the token as the difference between his speed and public speed is 5 km/h.
The sign of the number is not considered, whether it is +5 or -5 it is the difference of 5 km/h.

The number line for this absolute value is plotted below.

The real world example for the absolute value are to express the change in balance of account.

Learn more about absolute value in real world problem here:

brainly.com/question/2235065

#SPJ1

8 0

2 years ago