50 points please help

Answer:

It is "C"

Step-by-step explanation:

I know this because I just did this test

Answer: 7

Step-by-step explanation:

f(4) = 2(4) - 1 = 8 - 1 =7

Answer:

slope: 1

Step-by-step explanation:

(1, 2) and (3, 4)

To find the slope of the line, we use the slope formula: (y₂ - y₁) / (x₂ - x₁)

Plug in these values:

(4 - 2) / (3 - 1)

Simplify the parentheses.

= (2) / (2)

Simplify the fraction.

2/2

= 1

This is your slope.

Hope this helps!

Answer:

16

Step-by-step explanation:

<3 :3

Answer:

420 centimeters

Step-by-step explanation:

12 x 7 x 5 = 420

Step-by-step explanation:

67 miles

Answer:

yes because 30 is half of 60

Step-by-step explanation:

Answer:

yes, jenny is right.

Step-by-step explanation:

half of 60, is 30, (60/2 = 30)

hope this helps :)

a brainliest would most certaintly be appreciated :)

x is greater than or equal to 0

x is less than or equal to 1

put the equation in desmos to graph the inequality

Answer:

5.52

Step-by-step explanation:

c = b/sinus alpha (65 degrees)= 5.52

to be sure:

Answer:

(-3,-9)

Step-by-step explanation:

Answer:

i have done the solution calculate yourself

Answer:

(x²+6x+8)

I hope this helps

Step-by-step explanation:

(x+2) (x+4)

(x²+4x+2x+8)

(x²+6x+8)

Is it only me or u didn't add a pic

Answer:

3/4x+2

Step-by-step explanation:

We can see the y intercept is 2 so our equation looks like this

y=mx+2

We just need to solve for m

We can take the point

(4,5)

and plug it in

5=4x+2

solve for x

x=3/4

Answer:

To eliminate the x-terms, multiply the second equation by 2.

To eliminate the y-terms, multiply the second equation by 3.

Step-by-step explanation:

The first step of solving by elimination requires that you eliminate either the x-terms or y-terms by making the two terms have the same coefficient, but opposite signs.  

So, if you wanted to eliminate the x-terms, you could multiply the second equation so that its x term has the same coefficient as the x-term in the first equation, but with opposite signs. The x-term in the first equation is 4x. The x-term in the second equation is -2x. They already have opposite signs, so we just need the -2x to become -4x. -4x divided by -2x is 2, thus you would multiply the second equation by 2.  

If you wanted to eliminate the y-terms, the process is the same. The y-term in the first equation is -9y and the y-term in the second equation is 3y. Again, they already have opposite signs, we just need 3y to become 9y. 9y divided by 3y is 3, thus you would multiply the second equation by 3.

Answer:

to eliminate x, u would multiply second equation by 2

to eliminate y, u would multiply second equation by 3

Step-by-step explanation:

Answer: El otro avión recorrió a distancia de 1362.5 km.

Step-by-step explanation:

Vamos a definir:

Norte es el eje y-positivo.

Oriente (o este) es el eje x-positivo.

Y también sabemos que si tenemos los puntos (a, b) y (c, d)

La distancia entre esos puntos es:

Distancia = √( (a - c)^2 + (b - d)^2)

Ahora, uno de los aviones va hacia el norte, entonces si el aeropuerto está en la posición (0, 0), después de un rato viajando hacia el norte su nueva posición va a ser (0, A)

Mientras que el que va al oeste va a tener una nueva posición (B, 0)

La distancia entre ellos es:

Distancia = √( (B - 0)^2 + (0 - A)^2) = √( B^2 + A^2)

Sabemos que cuando la distancia entre ellos es 1580 km, uno de ellos ha recorrido 800km, asumamos que A = 800km.

Entonces tenemos la ecuación:

1580 km = √( B^2 + (800km)^2)

(1580km)^2 = B^2 + (800km)^2

(1580km)^2 - (800km)^2 = B^2

√((1580km)^2 - (800km)^2 ) = B = 1362.5 km

El otro avión recorrió a distancia de 1362.5 km.

Answer:

D. 3

Step-by-step explanation:

For n = 1:

q = 1/3 * 1 = 1/3

r = 3 * 1/3 + 2 = 1 + 2 = 3

For n = 2:

q = 1/3 * 2 = 2/3

r = 3 * 2/3 + 2 = 2 + 2 = 4

For n = 3:

q = 1/3 * 3 = 1

r = 3 * 1 + 2 = 3 + 2 = 5

Therefore, from the values of r that we found (3, 4, 5), the minimal value is 3.

Answer:

C

Step-by-step explanation:

21/ 3 is the answer of this question

the answer is:

-5w - 12

Answer:

x= 1±5i/2

Step-by-step explanation:

Answer:

6n - 1.

Step-by-step explanation:

Arithmetic sequence.

a1 = 5, d = 6.

nth term = a1 + d(n - 1)

= 5 + 6(n - 1)

= 5 + 6n - 6

= 6n - 1.

Answer:

1080°

General Formulas and Concepts:

Math

Pre-Algebra

Order of Operations: BPEMDAS

Geometry

Step-by-step explanation:

Step 1: Define

We are given a 8 sided polygon (a octagon)

n = 8

Step 2: Find Sum

Answer:

1cm

Step-by-step explanation:

Kindly refer to the attached image for clarity

Given data

Let the big circle have a radius R= 3.5cm

and the small circle have a radius r= 2.5cm

From the image, we can see that the distance between the two centers is the difference of the radii

Distance= R-r

Distance= 3.5-2.5= 1cm

Hence the distance is 1cm

Answer:

C≈81.68

Step-by-step explanation:

I hppe this helps! ^^

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Answer:

The slope of the line is 4.

Step-by-step explanation:

[tex]slope=\frac{y_2-y_1}{x_2-x_1}[/tex] when the points given are [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex]

Plug the given points (1,12) and (2,16) into the equation

[tex]slope = \frac{16-12}{2-1}\\slope =\frac{4}{1} \\slope=4[/tex]

I hope this helps!

Answer:

3 1/4

Step-by-step explanation:

Answer:

f(-2)=7

Step-by-step explanation:

f(-2)=2^-2+3

f(-2)=4+3

f(-2)=7