Can somebody help me with this math question, all you have to do is answer the equation, then it's described, and then it draw it out I'll give you 100 points and a Brainliest

Answer:

[tex] {3x}^{3} + {2x}^{2} - 27x - 18[/tex]

Step-by-step explanation:

1) Use difference of squares: a² - b² = (a + b) (a - b).

[tex]( {x}^{2} - {3}^{2} )(3x + 2)[/tex]

2) Simplify 3² to 9.

[tex]( {x}^{2} - 9)(3x + 2)[/tex]

3) Use The FOIL method: (a + b) (c + d) = ac + ad + bc + bd.

[tex] {3x}^{3} + {2x}^{2} - 27x - 18[/tex]

Therefor, the answer is 3x³ + 2x² + -26x -18.

Answer:

Step-by-step explanation: equivalent means equal to, so that means these expressions are equal :)

but there are a lot of creeps here" :(

Step-by-step explanation:

​

28.1 feet

explaination

\cos U = \frac{\text{adjacent}}{\text{hypotenuse}}=\frac{9.6}{x}

cosU=

hypotenuse

adjacent

​

=

x

9.6

​

\cos 70=\frac{9.6}{x}

cos70=

x

9.6

​

x\cos 70=9.6

xcos70=9.6

Cross multiply.

\frac{x\cos 70}{\cos 70}=\frac{9.6}{\cos 70}

cos70

xcos70

​

=

cos70

9.6

​

Divide each side by cos 70.

x=\frac{9.6}{\cos 70}=28.0685\approx 28.1\text{ feet}

x=

cos70

9.6

​

=28.0685≈28.1 feet

Type into calculator and roundto the nearest tenth of a foot.

okay here you goo

Answer:

are you in a rush or can i do it in like 5 mins

Answer:

40 seconds

Step-by-step explanation:

8         20

16        40

32

40

40 seconds

It will take 40seconds to both the lights to flash at the same time again.

" Least common multiple is defined as the smallest common multiple of the given set of numbers."

According to the question,

Given ,

Time to flash Light A is  every 8 seconds.

Time to flash Light B is every 20 seconds.

Condition given

Both the lights flash at the same time

Least common multiple (8, 20) = 40seconds

Light A flashes in

8seconds , 16seconds , 24seconds , 32seconds, 40seconds

Light B flashes in

20seconds , 40seconds

Hence, both the light flashes at the same time again is at 40seconds.

Learn more about least common multiple here

https://brainly.com/question/11533141

#SPJ2

Answer: Arithmetic (increasing by constant rate of 20)

Step-by-step explanation:

Arithmetic means the difference between two consecutive terms is constant which it is in this case because it constantly increases by a value of 20.

Geometric means the sequence is changing by a constant ratio or factor

Answer:

3.5

Step-by-step explanation:

:)

Answer:

x =90

Step-by-step explanation:

Cot 1/2x-1=0

Add 1 to both sides

Cot 1/2x = 0+1

Cot 1/2x = 1

1/tan1/2x = 1

Tan 1/2x = 1

1/2x = arctan1

1/2x =45

x = 45×2

x = 90

Hence the value of x is 90

Answer:

11(7 + 4) = 11 × 7 + 11 × 4

Step-by-step explanation:

11(7 + 4) = _ x 7 + 11 x _

use distributive property:

11(7 + 4) = 7 x 11 + 7 x 11

Answer:

11 * 7 + 11 * 4

Step-by-step explanation:

given 11(7+4)

we need to use distributive property

To do so we multiply 11 by whats inside of the parenthesis

so 11(7+4) is equivalent to 11 * 7 + 11 * 4

Answer:

6

Step-by-step explanation:

8/4 = 2 so 3*2=6

Answer:

The CIRCUMCENTER of a triangle is the point in the plane equidistant from the three vertices of the triangle.

Answer:

157.1 m

Step-by-step explanation:

Here, we want to calculate the length of the semi-circle

This simply refers to the circumference of the semi-circle

Mathematically, the circumference is half that of a full circle

The circumference of a full circle is;

C = pi * d

For half circle or semi-circle;

It is ;

C = (pi * d)/2

D = 50 m

The circumference is thus;

C = 50 * 3.142

C = 157.1 m

Answer:

7x minus 11

Step-by-step explanation:

7x would be 7 times whatever x is. then you subtract 11 from 7x. the reason you’re subracting 11 from 7x is because 11 has to be less than 7x (i understand negatives, but we’re not using that in this problem.)

Answer: (B) 7x minus 11

Step-by-step explanation: Just to make sure it was correct!

Have a good day :D

Answer:

I don't get it

Step-by-step explanation:

Answer:

thank you! :)

Answer:

Total area of new carpeting installed: 368

Step-by-step explanation:

What I did is too complicated to write down, so I'll just show you the math:

(12 * 8) * 2 (The area of the bedrooms)

11 * 16 (The area of the livingroom)

Answer:

3, 2, 1, 0, literally anything below 4

Step-by-step explanation:

The "mouth" < or > eats the bigger number, if 4 is bigger than x, x must be smaller than 4

Answer:

I think 15%

Step-by-step explanation:

sorry if wrong Hope you do good !

                 -Ash

Answer:

102%

Step-by-step explanation:

Answer:

the answer is 40 X=40

hope this helps :)

Answer:

Yes,

rounding to the nearest hundrenth would be 16.19

rounding to the nearest tenth would be 16.2

and rounding to the nearest ones place would get you 16

Step-by-step explanation:

Answer:

Brain

Step-by-step explanation:

Brain Brain Brain Brain Brain Brain

Answer:

20.5 ounces

Step-by-step explanation:

11.5+2.25s=?

11.5+2.25(4)=

Answer:second 1

Step-by-step explanation:

Answer:

The blue line models the data points better than the red line. It is because the data points are all close to the line.

Step-by-step explanation:

I'm not downloading that pdf on my phone papa (®c®)

Answer:

a. Changes in air pressure keep temperatures constant

Step-by-step explanation:

Hope it helps,

Pls mark me as the brainliest

Thank you

Answer:

1

Combine multiplied terms into a single fraction

6−8=12(4+5)

6−8=1(4+5)2

2

Multiply by 1

6−8=1(4+5)2

6−8=4+52

3

Add

8

888

to both sides of the equation

6−8=4+52

6−8+8=4+52+8

10 more steps

Solution

=21/8

Step-by-step explanation:

Answer:

.24

Step-by-step explanation: