3 years ago

Combine like terms: 4x2 + 3y + 4x2 - y3

Mathematics

2 answers:

adelina 88 [10]3 years ago

6 0

Answer:

Step-by-step explanation:

if its 4x2 is 4 squared and y3 is cubed then it is

-y cubed + 8x² + 3y

umka21 [38]3 years ago

4 0

Answer:

8x2

Step-by-step explanation:

4x2 and 4x2 are like terms and because they are both positive they are added together.

Then, +3y and -3y are combined to make 0.

You might be interested in

Which ordered pair represents the y-intercept of the graph of the equation y = -5x + 6?

Sonja [21]

The answer is A (0,6)

3 0

3 years ago

Read 2 more answers

Adult entrance fees to amusement parks in the United States are normally distributed with a population standard deviation of 2.5

kondor19780726 [428]

Answer: 1.509

Step-by-step explanation:

The formula of Margin of Error for (n<30):-

$E=t_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

Given : Sample size : n= 22

Level of confidence = 0.99

Significance level : $\alpha=1-0.99=0.01$

Using the t-distribution table ,

Critical value : $t_{n-1, \alpha/2}=t_{21,0.005}= 2.831$

Standard deviation: $\sigma=\text{ 2.5 dollars }$

Then, we have

$E=( 2.831)\dfrac{2.5}{\sqrt{22}}\approx1.509$

Hence, the margin of error for a 99% confidence interval for the population mean =1.509

4 0

3 years ago

Solve for x:

galina1969 [7]

division to 4 is the last step

8 0

3 years ago

IT'S URGENT!!

marissa [1.9K]

The area would be 162

7 0

3 years ago

What is the most important thibg one must do when solving an algerbraic equation

yuradex [85]

Answer:

using the foil

Step-by-step explanation:

you always have to get rid of the x for example if it is +3x you add it on to get rid of it and you carry on until you have solved x.

3 0

3 years ago

Read 2 more answers