MATHEMATICS HIGH SCHOOL

Simplify the following expression (6x2 + 8x - 3) - (3x2 - 6)

Answers

Answer 1

Answer:

Answer:

3x^2 +8x +3

Step-by-step explanation:

(6x^2 + 8x - 3) - (3x^2 - 6)

Distribute the minus sign

(6x^2 + 8x - 3) - 3x^2 + 6

Combine like terms

3x^2 +8x +3

Related Questions

A quadratic equation is shown below:x2 − 14x + 41 = 0Which of the following is the first correct step to write the above equation in the form (x − p)2 = q, where p and q are integers?A. Add 8 to both sides of the equationB. Add 9 to both sides of the equationC. Subtract 8 from both sides of the equationD. Subtract 9 from both sides of the equation
Can someone put this equation in standard form for me? y-3=1/5(x-3)Standard form : Ax+By=C
10 is 50 percent of what number?
If the height of a right circular cone of volume 96 pie cm sq is 18cm, then what is the radius of the base of the right circular cone?OPTIONS- A) 4cm B) 6cmC) 8cmD) 9cm
-2(n+3)=13 solve for n

How many possible values of mı will there be if I = 18? A. One value of mı B. Two values of mı C. Three values of mı D. Four values of mı

Answers

Answer:

The answer is option(c) -2,-1,0,+1,+2.

Step-by-step explanation:

i hope I'm correct

Can she buy enough packs ?

Answers

How many tiles does she need ?

1 square meter = 10,000 cm²
12 square meters = 120,000 cm²
Each tile = (20 cm x 20 cm) = 400 cm²
Tiles needed = 120,000 / 400 = 300 tiles

How many tiles can she buy ?

1,000 / 34.99 = 28 boxes, with 20.28 left over . . . not enough for another box.
28 boxes of 10 tiles per box = 280 tiles

Halima doesn't have enough money to buy enough tiles
to cover the wall. She can only buy 280 tiles, but it would
take 300 to cover the wall.

She can cover 280/300 = 93 and 1/3 percent of the wall,
leaving 6 and 2/3 percent with the old ugly plaster showing.
Maybe she could leave the bare part down at the bottom, and
then hide it with a table up against the wall.

im pretty sure she can only cover 380 of it

What is 782,444 rounded to the nearest hundred thousand

Answers

782,444 rounded to the nearest hundred thousand would be 800,000.

This is because we know that the hundred thousands place has a 7 in it, so it would be 700,000. However, because 8 is greater than 5, we have to round up instead of down.

Hope this helps!

Line OP has an equation of a line y = 6x − 5, and line QR has an equation of a line y = 6x + 3. These two equations represent

Answers

The two equations represent parallel lines, since they both have the same slope which is equal to 6. Line OP intersects the y-axis at (0,-5), and line QR intersects the Y axis at (0,3).

The dataset below represents the population densities per square mile of land area in 15 states in the 2010 U.S. Census. What is the interquartile range?

Answers

Answer:

The Interquartile range is 188

Step-by-step explanation:

Missing Data:

1,19,35,43,49,55,63,94,105,110,175,231,239,351,738

Required

Determine the Interquartile range (IQR)

The given data is ordered already.

First, we need to determine the median

For odd number of data

Median = ½(n + 1)th

In this case, n = 15; so

Median = ½(15 + 1)th

Median = ½(16)th

Median = 8th

This implies that the median is at the 8th position.

So, we have:

1,19,35,43,49,55,63 ----> Lower

(94) ---- Median

105,110,175,231,239,351,738 ---- Upper

Next, we determine the median of the lower and upper sets.

These are called lower quartile (Q1) and upper quartile (Q3) respectively

Lower: 1,19,35,43,49,55,63

Number of data, n = 7

Q1 = ½(n + 1)th

Q1 = ½(7 + 1)th

Q1 = ½(8)th

Q1 = 4th position

From the list of data in the lower set,

Q1 = 43

Upper: 105,110,175,231,239,351,738

Number of data, n = 7

Q3 = ½(n + 1)th

Q3 = ½(7 + 1)th

Q3 = ½(8)th

Q3 = 4th position

From the list of data in the upper set,

Q3 = 231

IQR is then calculated as thus:

IQR = Q3 - Q1

IQR = 231 - 43

IQR = 188

Which of the following has a positive value? sec (2pi/3) tan (2pi/3) cos (2pi/3) csc (2pi/3)

Answers

Answer: D) csc (2π/3)

Step-by-step explanation:

2π/3 is in Quadrant II

Quadrant II has a negative x-value and a positive y-value.

x-values are: cos & sec

y-values are: sin & csc

tan = y/x so will be negative in Quadrant II

A) sec = -

B) tan = -

C) cos = -

D) csc = + this works!

Other Questions

Mrs. Hall records the heights of 50 students in a spreadsheet. The mean height is 68 inches. After looking at the data again, she realized that two of the 50 observations were outliers that must have been typos, 82 and 86 inches. She deleted these two observations. What is the new mean, rounded to the nearest hundredth?

P = 3n+3ui need to solve for n

A sixth-grade class is painting a mural. To make a darker shade of orange, they use a ratio of 5 ounces of red paint to 3ounces of yellow paint. Use this ratio to consider the amount of yellow paint needed for each amount of red paint listed in the table.Point Red Paint, x(ounces) Yellow Paint, y(ounces)A5B15C20Determine ordered pairs for points A, B, and C, and graph the relationship of the amount of red paint to the amount of yellow paint on the coordinate plane. Click on the grid to plot the three points.