Find the sum: (3x2 + 5x − 8) + (5x2 − 13x − 5)8x2 + 8x − 13
8x2 − 8x + 13
8x2 − 8x − 13
8x2 − x − 13

Answers

Answer 1

Answer: the third one is true

good luck

Answer 2

Answer: (3x^2 + 5x − 8) + (5x^2 − 13x − 5)

3x^2 + 5x − 8
+ 5x^2 − 13x − 5
----------------------------
8x^2 - 8x - 13

The answer is choice C: 8x^2 − 8x − 13

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What times what equals 11 but added together makes 12

What are the next three numbers in this pattern? 11, 22, 12, 23, . . .

Answers

Answer:

13 , 24 , 14

Step-by-step explanation:

Note that technically there are two patterns. Each one adds 1.

The first pattern starts with 11. The third number is 12, which means that the fifth number will be 13, and the 7th number will be 14.

The second pattern starts with 22. The 4th number is 23, which means the sixth number will be 24.

Easy, it's going by adding 11's 11+11=22 than it subtracts by 10=12 and it keeps repeating until it's done.

9) Which equation represents the line that passes through the point (3,4) and is parallel to the x-axis?A x = 4
B x = 3
C y = 4
D y = 3

Answers

Since the line is parallell to the x-axis we know the slope is zero: $m=0$

Using the point-slope formula we can substitute know values:
$y=mx+b$
$4=0(3)+b$
$b=4$
$y=0x+4$
$y=4$

You could also jsut do it by inspection: since it passes through (3,4) and is horizontal it must cross at (0,4) i.e. all y=4.

Final answer:

The equation of the line parallel to the x-axis and passing through point (3,4) is 'y = 4'. Thus, the correct answer is C y=4.

Explanation:

The question asks for the equation of a line that is parallel to the x-axis and passes through the point (3,4). In the Cartesian coordinate system, a line parallel to the x-axis will have a constant y-value and an equation in the form of y = k, where k is the constant y-value. In this case, the y-coordinate of the given point is 4, which is our constant. Thus, the line parallel to the x-axis passing through the point (3,4) is y = 4. So, the correct answer is C y = 4.

Learn more about Parallel Lines here:

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The labor cost for carpet installation is $4 per square foot. How much will it cost to install new carpeting in 256 square feet room?

Answers

So to do this i'm pretty sure you just multiply. 4*256 and you''l get your answer which would be $1024. Don't quote me on that though. :) I hope you get it right.

Each of the 20 members of a club needs to purchase a t-shirt and a flag. T-shirts cost $10 each. Flags cost $2.50 each. Before tax, what is the cost for all the t-shirts and flags?

Answers

Answer: $250.00

Step-by-step explanation:

1 Member needs one t-shirt and on flag.

$10.00+$2.50=$12.50 per member.

$12.50x20 members=$250.00

a cereal box is 8 1/2 inches long, 3 1/2 inches wide, and 12 inches high. what is the volume of the the box?

Answers

Length of the cereal box = 8 1/2 inches
= 17/2 inches
Width of the cereal box = 3 1/2 inches
= 7/2 inches
Height of the cereal box = 12 inches
Then
Volume of the cereal box = Length * Width * Height
= (17/2) * (7/2) * 12 cubic inches
= 17 * 7 * 12 cubic inches
= 1428 cubic inches

I think its 357 squared. Just multiply all of it together. I'd check the formula for finding volume if you want a reliable answer

imagine an investigation in which 40 students were asked to determine their chronotype by choosing from among four chronotypes instead of three: morning person, night person, neither, or both. If there is no relationship between chronotype and birth month, about what fraction of the students would you expect to pick the chronotype that matches their birth month? why do you think this?

Answers

Step-by-step explanation:

A chronotype is a behavioral manifestation of an underlying circadian rhythms of the myriad physical processes.

The chronotype word may be defined as an individual's natural tendency to remain active mostly at certain times of the day. Some people remain active and alert in the early time of the day and some are alert and active in the late night.

The chronotypes are : Morning person, night person, neither/both.

It is assume that the birth month and year of a person influences his or her chronotype. But if birth month is not related to theses personality traits of a person, then it can be expected that nearly 1/3rd of the fraction of the students in class picks the chronotype which corresponds to their birth type.

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A 1992 poll conducted by the University of Montana classified respondents by gender and political party, as shown in the table below. We wonder if there is an association between gender and party affiliation. Which of the following would be the appropriate type of test to investigate our hypothesis? ( Democrat / Republican / Independent ) Male= ( 36 / 45 / 24 ) Female= ( 48 / 33 / 16 ) At the α = .10 level, what is the correct conclusion for the test? Question 4 options: A. There is an association between gender and party affiliation. B. There is no association between gender and party affiliation. C. Males tend to be Republicans. D. No conclusion can be made.

Rory walks a combined 7/8 of a mile to school and back each day. How many miles does he walk each way?

8 4/9 + 5 3/8 = Please explain.