pls helppppppp I give brainliest ​

Answer:

<--------o           o------------->

         -4           2

Step-by-step explanation:

Because the sign in the inequalities is only greater than/ less than (not equal to), we know that there is an open dot on x=-4 and on x=2.

From there, we shade the area on the graph that is true to the function.  So, we can test points.

First we will test x=-5

-5<-4  --> this is true, so we will shade to the left of x=-4

Now test x=0

0<-4  --> this is false

0>2  --> this is also false, so the area between the two open dots will not be shaded

Now test x=3

3>2  --> this is true, so we will shade to the right of x=3

Answer:

16x - 16

Step-by-step explanation:

Distribute the 4 to the other terms.

4(4x - 4) = 16x - 16

Answer:

75

Step-by-step explanation:

he can download 2.5 songs per minute so 2.5 x 30 is 75

Answer:

Shane can download 75 songs in half an hour.

Step-by-step explanation:

use a proportion;

5 x

--- = ---

2 30

30/2 = 15

15 x 5 = 75

x = 75

Answer: well if I am correct, then 9/12 is equal to 3/4 so you then have to subtract 1/12 from 9/12 so 8 (8/12) would be what was taken away. (if you were to simplify 8/12 I believe that would be 2/3)

-hope that helped-

let me know if I misunderstood anything or did something wrong

Answer:

5

Step-by-step explanation:

|-3| = 3

2 + 3 = 5

Answer:

Step-by-step explanation:

Then, the total time, which is 2 hours, is equal to x plus 7x, or 8x. So the amount of time he spends in the automobile is x=1/4 hour. The distance he travels in 1/4 hour at 28 mph is 7 miles.

pls mark brainliest

Functions can be represented as equations, and equations can be represented as functions.

The number of people that started the rumor is 10

The function is represented as:

[tex]\mathbf{N(t) = \frac{400}{1 + 39e^{-0.7t}}}[/tex]

To calculate the number of people that started the rumor, we simply set t to 0.

So, we have:

[tex]\mathbf{N(0) = \frac{400}{1 + 39e^{-0.7 \times 0}}}[/tex]

Evaluate the exponent of e

[tex]\mathbf{N(0) = \frac{400}{1 + 39e^{0}}}[/tex]

Express e^0 as 1

[tex]\mathbf{N(0) = \frac{400}{1 + 39\times 1}}[/tex]

Multiply 39 and 1

[tex]\mathbf{N(0) = \frac{400}{1 + 39}}[/tex]

Add 1 and 39

[tex]\mathbf{N(0) = \frac{400}{40}}[/tex]

Divide 400 by 40

[tex]\mathbf{N(0) = 10}[/tex]

When t = 0, N(t) = 10

This means that 10 people started the rumor.

Hence, the number of people that started the rumor is 10

Read more about functions and equations at:

https://brainly.com/question/3468890

Answer:

[tex]F = ( \frac{9}{5}C ) + 32[/tex]

with F = xF and C = xC

=> f(x) = (9/5)x + 32

I'm sorry I can't mark the degree symbol

Step-by-step explanation:

[tex]f(x) = \frac{5}{9}(x-32) \\xC = \frac{5}{9}(xF-32) \\xC * \frac{9}{5} = \frac{5}{9}(xF-32) * \frac{9}{5} \\xC * \frac{9}{5} + 32 = xF - 32 + 32 \\\\xC * \frac{9}{5} + 32 = xF[/tex]

Answer:

363

Step-by-step explanation:

Answer: the slope would be 0

Step-by-step explanation:

Answer:

-3

Step-by-step explanation:

......................

Answer:

x = 115°

Step-by-step explanation:

The two angles are vertical, so x = 115°

Vertical Angles are two angles formed by the intersection of two lines. Angles that are non-adjacent to each other are congruent in degrees.

We can see that 115° and x° are formed by the intersection of two lines, and they are non-adjacent (don't share a common side) which makes them congruent in degrees.

x = 115°

-Chetan K

Answer:

answer is 7.2

Step-by-step explanation:

0.9(15)-2.1(3)

13.5-6.3=7.2

Answer:

7.2

Step-by-step explanation:

0.9*15=13.5

2.1*3=6.3

13.5-6.3=7.2

Answer:

Answer:

8 x + 16

Step-by-step explanation:

math---way

Answer:

A

Step-by-step explanation:

yeah-ya............ right?

ANSWER:

[tex] \large\color{green}{ \tt{A. 1 / 10}}[/tex]

Solution Steps:

Least common multiple of 5 and 10 is 10. Convert 1/5 and 1/10 to fractions with denominator 10.

[tex]( \frac{2}{10} - \frac{1}{10} ) \times 3^{2} - \frac{4}{5} [/tex]

Since 2/10 and 1/10 have the same denominator, subtract them by subtracting their numerators.

[tex] \frac{2 - 1}{10} \times 3^{2} - \frac{4}{5} [/tex]

Subtract 1 from 2 to get 1.

[tex] \frac{1}{10} \times 3^{2} - \frac{4}{5} [/tex]

Calculate 3 to the power of 2 and get 9.

[tex] \frac{1}{10} \times 9 - \frac{4}{5} [/tex]

Multiply 1/10 and 9 to get 9/10.

[tex] \frac{9}{10} - \frac{4}{5} [/tex]

Least common multiple of 10 and 5 is 10. Convert 9/10 and 4/5 to fractions with denominator 10.

[tex] \frac{9}{10} - \frac{8}{10} [/tex]

Since 9/10 and 8/10 have the same denominator, subtract them by subtracting their numerators.

[tex] \frac{9 - 8}{10} [/tex]

Subtract 8 from 9 to get 1.

[tex] \large\color{green}\frac{1}{10} [/tex]

Hope It's Help

Answer:

B) 20

Step-by-step explanation:

c = √b2 + c2 - 2bc·cos(A) = 20

Have a nice day! :-)

Answer:

Helena is 31.25 meters below the sea level.

Step-by-step explanation:

0.25 x 18 = 4.5

26.75 + 4.5 = 31.25

Answer:

27.

Step-by-step explanation:

200 / 6 = 33 1/3.

Numbers which are divisible by 5 and 6 are 30, 60, 90, 120, 150 and 180.

So the total is 33 - 6 = 27.

Answer:

27

Step-by-step explanation:

27. 33-6=27

Answer:

-2

Step-by-step explanation:

You would add 4 to 2 inorder to get 6, then divide by 3 to get -2

Answer:

20

Step-by-step explanation:

each time the numbers are up by 20 years

Answer:

the factored expression: 2(x + 3)

Answer:

3

Step-by-step explanation:

Hice una ecuación: 2x+4=10. Luego, reste 4 de cada lado para obtener: 2x = 6, lo que resulta en: x = 3.

Answer:

  d/3

Step-by-step explanation:

For k = 8c, the concentration is ...

  S = c/x^2 + 8c/(d -x)^2

The minimum of the function will be found where its derivative is zero. The derivative with respect to x is ...

  S' = -2c/x^3 +(-2)(8c)(-x)/(d -x)^3

We are interested in the value of x that makes this zero.

  0 = -2c/x^3 +16c/(d -x)^3 . . . . . simplify slightly, set S'=0

  0 = (-2(d -x)^3 +16x^3)/(x(d -x))^3 . . . . . combine terms, divide by c

  0 = d^3 -3d^2x +3dx^2 -x^3 -8x^3 . . . . multiply by (x(d-x))^3/(-2)

  9x^3 -3dx^2 +3d^2x -d^3 = 0 . . . . . simplified cubic

Factoring by grouping, we have ...

  (9x^3 -3dx^2) +(3d^2x -d^3) = 0

  3x^2(3x -d) +d^2(3x -d) = 0

  (3x^2 +d^2)(3x -d) = 0

The solution will be found where the second of these factors is zero:

  3x -d = 0

  x = d/3

The concentration of the deposit is a minimum at x = d/3 miles.

_____

The graph shows the minimum is x = 1/3 when d = 1.

a is right its 58

and in my opinion i think b would be 58*5=290 cents, since nickel is worth 5 cents.

but gotta check other people's answers

Answer:

4x2−12x+9=0

Step-by-step explanation:

The equation, 2x2+x+3=0, does not have a solution

The equation, x2+5x−3=0, equals -5/2+1/2√37 and -5/2+-1/2√37

The equation, x2−5x+4=0, equal 1 and 4

The equation, 4x2−12x+9=0, equals only 3/2

Hope this Helps

Answer:

Slope of 2

Step-by-step explanation:

and the lines equation is y=2x-8

9514 1404 393

Answer:

  (4, -7)

Step-by-step explanation:

Maybe you want the solution to this system of equations.

About the easiest way to obtain it is to use a graphing calculator.

   (x, y) = (4, -7)

_____

Additional comment

Since one of the equations gives an expression for y, it is a simple matter to substitute that for y in the other equation.

  4x +(-2x +1) = 9

  2x = 8 . . . . . . . . . . subtract 1 and simplify

  x = 4

  y = -2(4) +1 = -7 . . . use the first equation to find y

Answer:

Look, this should help.

Step-by-step explanation:

Answer:

Step-by-step explanation:

0.9

Answer:

1.8÷2

18÷20

18÷20=0.9

1.8÷2=0.9