2 years ago

Find the y-intercept and the vertex of y+-x^2+6x-8 using standard form

Mathematics

1 answer:

VARVARA [1.3K]2 years ago

6 0

Answer:

-x^2+y+6x-8

hope this helps

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The number of bacteria in a certain culture doubled every hour. If there were 30 bacteria present in the culture initially, how

vichka [17]

Answer:

The number of bacteria after $8th$ will be $3840$

Step-by-step explanation:

Given the initially 30 bacteria present in the culture.

Also, the number of bacteria got doubled every hour.

So, using the equation

$A=A_0r^{n-1}$

Where $A$ is number of bacteria after $n$ hours.

$A_0$ is bacteria present initially.

$r$ is the common ration, in our problem it is given that bacteria doubles every hour. So, $r=2$

And $n$ is the number of hours. In our problem we need amount of bacteria at the end of $8th$ hours. So, $n=8$

Plugging values in the formula we get,

$A=30(2)^{8-1}\\A=30\times 2^7\\A=30\times 128\\A=3840$

So, number of bacteria after $8th$ will be $3840$

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2 years ago

At the beginning of this month, the balance of Carl's checking account was $437.55. So far this month, he has received a paychec

Nuetrik [128]

Again, just simple addition and subtraction: $1,034.52

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2 years ago

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What is the simplest form of 2(sqr rt) 3/ (sqr rt) 6??

eduard

Answer:

<u>Option A </u>will be your answer

Step-by-step explanation:

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2 years ago

Help??

sineoko [7]

Wouldn't it be three hours? The line in the middle means average. 13 and 16.

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3 years ago

Match each phrase to its correct translation as an algebraic expression. Please help me out, I'm struggling LOL.

VikaD [51]

Answer:

A number plus two and three-tenths. → x + 2.3

A number divided by three-tenths. → x / .3

Four, subtracted from three times a number. → 3x - 4

Four, added to twice a number. → 2x + 4

Hope that helps.

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3 years ago