All categories

2 years ago

What is a good example for this??

Mathematics

1 answer:

Nataliya [291]2 years ago

4 0

You are to invent x^2, x and constant terms that sum up to specified figures.

You could begin with 6x^2-8x^2, which sums up to -2x^2.

Next, try 7x-4x, which subtract to 3x.

Last, choose two constants that sum up to 3.

Your poly? 6x^2 - *x^2 + 7x - 4x + ? + ?

You might be interested in

PLEASE HELP ME!! GEOMETRY! WILL GIVE BRAINLIEST!

Setler [38]

Answer: x=7.5

Step-by-step explanation:

7 0

2 years ago

Write the equation of a line in - form that contains the point (- 1, - 2) and is perpendicular to the line y = 5x - 10 degrees

galina1969 [7]

Answer:

y+2= -1/5(x+1)

Step-by-step explanation:

if lines are perpendicular their slopes are negative reciprocal

y=mx+b where m is the slope

y=5x-10 has the slope 5 so a perpendicular line will have slope -1/5

equation point slope form

(y-y1) = m(x-x1) where m is slope, and (x1,y1) any point that belongs to the line

y+2= -1/5(x+1)

3 0

2 years ago

Which are correct representations of the inequality –3(2x – 5) < 5(2 – x)? Check all that apply.

Katyanochek1 [597]

The correct answer is –6x + 15 < 10 – 5x.

We can tell this by solving for x.

–3(2x – 5) < 5(2 – x) ----> Multiply to the parenthesis.

-6x + 15 < 10 - 5x ----> This is answer #3 and now we add 5x to both sides

-x + 15 < 10 ----> subtract 15 from both sides

-x < -5 ----> Divide by -1

x > 5 (Note that you have to change the direction of the sign when dividing by a -1. Therefore it does not match answer #1).

5 0

3 years ago

from a window 24 feet above the ground, the angle of elevation to the top of another building is 38 degrees. The distance betwee

Snowcat [4.5K]

Answer:

The height of the building is $73.2\ ft$

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

In the right triangle ABC

$tan(38\°)=\frac{BC}{AB}$

we have

$AB=63\ ft$

substitute and solve for BC

$tan(38\°)=\frac{BC}{63}$

$BC=(63)tan(38\°)=49.2\ ft$

Find the height of the building

The height of the building (h) is equal to

$h=BC+24=49.2+24=73.2\ ft$

8 0

3 years ago

When solving negative one over eight (x + 35) = −7, what is the correct sequence of operations?

Fantom [35]

The answer is Multiply each side by −8, subtract 35 from each side

 $- \frac{1}{8}(x+35)=-7$

Multiply each side by -8:
 $(-8)(- \frac{1}{8})(x+35)=(-8)(-7) \\ \\ 
1(x + 35) = 56 \\ 
x + 35 = 56$

Subtract 35 from each side:
 $x + 35 -35 = 56-35 \\ \\ 
x + 0 =21 \\ \\ 
x = 21$

7 0

2 years ago