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3 years ago

Solve the equation for y. Identify the slope and y-intercept then graph the equation.

Mathematics

1 answer:

drek231 [11]3 years ago

5 0

Answer:

y = 1 m = -3 b = 1

Step-by-step explanation:

y = mx + b y = -3x + 1

y = 1

m = -3

b = 1

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Math help please Thanks A lot

babunello [35]

Answer:

2 hours: 3968 [I don't understand the $ sign in the answer box]

At midnight: 12137

Step-by-step explanation:

The bacteria are increasing by 15% every hour. So for every hour we will have what we started with, plus 15% more.

The "15% more" can be represented mathematically with (1 + 0.15) or 1.15. Let's call this the "growth factor" and assign it the variable b. b is (1 + percent increase).

Since this per hour, in 1 hour we'll have (3000)*(1.15) = 3450

At the end of the second hour we're increased by 15% again:

(3450)*(1.15) = 3968.

Each additional hour add another (1.15) factor, If we assign a to be the starting population, this can be represented by:

P = a(1.15)^t for this sample that increase 15% per hour. t is time, in hours.

If a represents the growth factor, and P is the total population, the general expression is

P = ab^t

Using this for a = 3000 and b = 1.15, we can find the total population at midnight after starting at 2PM. That is a 10 hour period, so t = 10

P = (3000)*(1.15)^10

P = 12137

8 0

3 years ago

a game is played by drawing 4 cards from a standard playing deck and replacing each card after it is drawn. find the probability

natima [27]

It is a 1 in 13 chance of drawing at least 1 ace.

8 0

3 years ago

Number 5 ABC or D? Please help

RoseWind [281]

Answer:

Step-by-step explanation:

you want to solve it out

start with multiplying z to each. you don't multiply it to the 6 because it is in the same parenthesis set, but you multiply it to everything in the other set. After multiplying, you get: $2z^3$ , $3z^{2}$ , $5z$

now do that to the 6. After multiplying you get: $12z^{2}$ , $18z$ , $30$

now set it all next to each other $2z^3$ + $3z^{2}$ + $5z$ + $12z^{2}$ + $18z$ + $30$

now combine like terms. start with the to the highest power. since there is only one that has a third power, you put that one first. then you combine the squared ones, and so forth.

work combining the squares: $3z^{2} + 12z^{2} = 15z^{2}$