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2 years ago

Which of the following is a factor of x2 - 6x + 8

Mathematics

1 answer:

hram777 [196]2 years ago

7 0

Answer:

(x - 4)(x - 2)

x = 4

x = 2

Step-by-step explanation:

x² - 6x + 8

= (x - 4)(x - 2)

x - 4

x = 4

x - 2

x = 2

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I WILL MARK BRAINLIST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Kisachek [45]

Answer:

(a) 30 & younger (no facial hair are 1,2,4,9. with facial hair are 10,12,14)

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2 years ago

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Marcos purchases a top-up card for his pre-paid cell phone. His remaining balance, B, can be modeled by the equation B=40−0.1n,

Molodets [167]

Answer:

Part a) When Marcos purchased the card, the balance on the card was $40

This is the B-intercept

Part b) Mark will have spoken 400 minutes when he runs out of money

This is the n-intercept

part c) The slope of the equation is -0.1 and the units are dollars per minute

Step-by-step explanation:

we have

$B=40-0.1n$

where

B is balance in dollars on the card

n is the number of minutes

Part a) How much money was on the card when he purchased it? $______. Which intercept is this? B-intercept or N-intercept?

we know that

The B-intercept is the value of B when the value of n is equal to zero

For n=0

substitute and find the value of B

$B=40-0.1(0)=\$40$

therefore

When Marcos purchased the card, the balance on the card was $40

This is the B-intercept

Part b) How many minutes will he have talked when he runs out of money? $_____. Which intercept is this? B-intercept or n-intercept ?

we know that

The n-intercept is the value of n when the value of B is equal to zero

For B=0

substitute and find the value of n

$0=40-0.1n$

$0.1n=40$

$n=400\ minutes$

therefore

Mark will have spoken 400 minutes when he runs out of money

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Part c) What is the slope of this equation?________ . What are the units on the slope? Minute , dollars per minute ,minutes per dollars or dollars ?

we have

$B=40-0.1n$

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3 years ago

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natta225 [31]

Answer:

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2 years ago

Write the equation in standard form. y=4/7x+3

sdas [7]

Answer:

4x-7y = -21

Step-by-step explanation:

1. Move 4/7x to the other side

-4/7x+y=-3

2. Multiply both sides by -7

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2 years ago

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djverab [1.8K]

Answer:

$6*10^8$ is 200 times larger than $3*10^6$

Step-by-step explanation:

$6*10^8\ and \ 3*10^6$

To compare both values we divide the exponents

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