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RSB [31]
4 years ago
10

Which line(s) are parallel to y=3x+1​

Mathematics
2 answers:
baherus [9]4 years ago
7 0
-3 since parallel lines have equal slopes
tamaranim1 [39]4 years ago
6 0

Answer:

Any line with a slope of 3

The line is in

y=mx+b

(m is the slope, b is the y intercept)

Therefore, in the line:

y=3x+1

3 is the slope

So, any line with a slope of 3 is parallel, because parallel lines have the same slope.

Hope this helps!

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4m. 

You can get this answer by setting the legs equal to x and x+4 and the hypotenuse as 2x-4. Then use the Pythagorean Theorem and the quadratic equation to solve. 
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Charles is planning a trip to Guatemala. He has allocated $415 for spending money. If the exchange rate from US
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Annika's class raised $800 by selling $5 and $10 movie gift cards. The class
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70 $5 movie gift cards and 45 $10 movie gift cards

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4 0
3 years ago
Calcular cuántos números impares hay entre 20 y 50 y calcular su suma​
const2013 [10]

Answer:

<em>La suma de los impares entre 20 y 50 da 875</em>

Step-by-step explanation:

<u>Suma de Progresiones Artiméticas </u>

Una progresión aritmética es aquella en la cual, cada término se obtiene como el anterior mas una cantidad fija llamada diferencia común. El término general de una progresión aritmética es

a_n=a_1+(n-1)r

Donde a_1 es el primer término, n el número de términos y r la diferencia común o radio. La suma de los primeros n términos se calcula como:

\displaystyle S_n=n\frac{a_1+a_n}{2}

En nuestro ejercicio, se deben sumar los números impares entre 20 y 50, se forma la progresión

21, 23, 25, 27, ....49

Sabemos que a_1=21,\ a_n=49,\ r=2

Primero averiguamos cuántos términos son, despejando n del término general

\displaystyle n=\frac{a_n-a_1}{r}+1

\displaystyle n=\frac{49-21}{2}+1

\displaystyle n=25

La progresión tiene 25 términos

Ahora la suma es

\displaystyle S_{25}=25\frac{21+49}{2}

\displaystyle S_{25}=25\frac{70}{2}

S_{25}=875

La suma de los impares entre 20 y 50 da 875

6 0
4 years ago
A B C D. Which answer put it into an equation
Vesnalui [34]

Answer:

I would believe it to be C. y=4x+10

Step-by-step explanation:

Because you have 4 dollars, and you are adding 10 to it every week and you will want to know what it added to the 4 dollars after a while.

3 0
2 years ago
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