All categories

3 years ago

What is the answer to (a + 3)(a - 2)

Mathematics

1 answer:

zhuklara [117]3 years ago

5 0

Answer:

Expand the polynomial using the FOIL method.

a ^2 + a − 6

Hope This Helps! Have A Nice Day!!

You might be interested in

Suppose that a jewelry store tracked the amount of emeralds they sold each week to more accurately estimate how many emeralds to

RUDIKE [14]

Answer:

The confidence interval for the mean is given by the following formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

And for this case the 95% confidence interval is given by (2.13; 2.37)

We have a point of estimate for the sample mean with this formula:

$\bar X = \frac{Upper+ Lower}{2}= \frac{3.37+2.13}{2}= 2.75$

And for the margin of error we have the following estimation:

$ME= \frac{Upper -Lower}{2}= \frac{3.37-2.13}{2}= 0.62$

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

$\bar X$ represent the sample mean

$\mu$ population mean (variable of interest)

s represent the sample standard deviation

n represent the sample size

Solution to the problem

The confidence interval for the mean is given by the following formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

And for this case the 95% confidence interval is given by (2.13; 2.37)

We have a point of estimate for the sample mean with this formula:

$\bar X = \frac{Upper+ Lower}{2}= \frac{3.37+2.13}{2}= 2.75$

And for the margin of error we have the following estimation:

$ME= \frac{Upper -Lower}{2}= \frac{3.37-2.13}{2}= 0.62$

5 0

3 years ago

A parallelogram has a base of 12 meters and a height of 1.5 meters. What is its area?

Ainat [17]

Answer:

Step-by-step explanation:

A = b x h

3 0

3 years ago

Read 2 more answers

The product of the slopes of two non-vertical perpendicular lines is always -1. It is NOT possible for two

Harlamova29_29 [7]

Answer:

true

Step-by-step explanation:

7 0

3 years ago

Amelia and Brendon are both on the ground looking at The top of a tower point D. Amelia is at point A and Brendan is at point B.

Bingel [31]

Answer 60?

Step-by-step explanation:

edmentum

7 0

3 years ago

The vertex of a parabola is (3,2). A second point on the parabola is (1,5).which of the following points is also on the graph?

vekshin1

+ The vertex of a parabola is (3,2),
that means the parabola's equation is y=a(x-3)²+2
+ A second point on the parabola is (1,5) and we replace x=1 and y=5. We have:
5=a(1-3)²+2 , so we have 4a=5-2 or a=3/4
So the equation is y=3/4 (x-3)²+2

And by checking we have the point (5;5) is on the parabola
Have fun

8 0

3 years ago

What is the answer to (a + 3)(a - 2) ​

What is the answer to (a + 3)(a - 2)