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Svetach [21]
2 years ago
6

Y = –3x + 6

Mathematics
2 answers:
Jlenok [28]2 years ago
5 0

Answer:

(-1, 9)

Step-by-step explanation:

given

y =  - 3x + 6 \\ and \\ y = 9 \\ then \: we \: need \: to :\ find \: x \: so \: that \: when \: plugged \\ to \:  - 3x + 6  \: the \: result \: is \: 9 \\  by \: transitive \: rule \\ y = 9 =  - 3x + 6 \\ 9 =  - 3x + 6 \: (substract \: both \: sides \: with \: 6) \\ 3 =  - 3x \: (divides \: both \: sides \: with \:  - 3) \\  - 1 = x

Serga [27]2 years ago
5 0

Answer:

the answer is c

Step-by-step explanation:

because i just took the test

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The subtotal of your computer purchase was $398.50. If the sales tax rate is 7.25%, how much will you pay in tax for the compute
Hatshy [7]

Answer:

54.97

Step-by-step explanation:

6 0
2 years ago
I'm studying a new bacteria that doubles in numbers every 25 minutes. If i start with 50 bacteria, how long until i have 5 milli
dimaraw [331]

Answer:

415.63 minutes

Step-by-step explanation:

Growth can be represented by the equation A=A_0e^{rt}. We can find the rate at which it grows by using t=25 minutes and \frac{A_{0}}{A} =2 or double the amount at that time. The first step we always take is to divide A_0 by A.

[tex]\frac{A_{0}}{A}=e^{rt}\\2=e^{r(25)}

2=e^{(25)r}

To solve for r, we will take the natural log of both sides and use log rules to isolate r.

ln 2=ln e^{(25)r}\\ln 2=25r (ln e)\\\frac{ln2}{25} =r

We know lne=1 so we were able to cancel it out and divide both sides by 25.

We solve with a calculator \frac{ln2}{25} =r\\0.0277=r

We change 0.0277 into a percent by multiplying by 100 to get 2.77% as the rate.

The equation is A=A_0e^{0.0277t} .

We repeat the step above substituting A=5,000,000, A_0=50, and r=0.02777. Then solve for t.

5000000=50e^{0.0277t}\\\frac{5000000}{50} =e^{0.0277t}\\100000=e^{0.0277t}\\ln100000=lne^{0.0277t}\\ln100000=0.02777t(lne)\\\frac{ln100000}{0.0277} =t

t=415.63 minutes

6 0
3 years ago
What is step 2 in the problem-solving process?
s344n2d4d5 [400]
Read the problem.
Write down the facts and figures.
Find a relationship between what is given and what must be found.
Do the work.
6 0
3 years ago
Read 2 more answers
How do you evaluate the expression |4/13|
Anuta_ua [19.1K]
Hi there!

First, you need to find the quotient of 4 and 13, obviously.

4/13 is equal to roughly 0.308.

Those grouping symbols around it tell you that you need to find the absolute value.

Absolute value is how far away a number is from 0 on a number line. 3, for example has a absolute value of 3, and -6 has an absolute value of 6.

So, the absolute value of 4/13 is about 0.308.

Hope this helps.  :)

-Spagoot
5 0
3 years ago
Need help asap!! close to running out of time to turn this in!
poizon [28]
You’re answer could be either the first or last one
7 0
3 years ago
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