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True [87]
3 years ago
9

What is 5x+3y=-15 slope intercept form

Mathematics
1 answer:
muminat3 years ago
8 0
Slope intercept form is y = mx + b
All we really have to do is rearrange our equation!
Subtract 5x from both sides
3y= -5x - 15 is your slope intercept form.
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If f(x) = 4x 6 and g(x) = x + 2,<br> what is (fºg)(7)?
laiz [17]

Step-by-step explanation:

(f○g)(7)

= f(g(7))

g(7) = 7 + 2

= 9

f(9) = 4(9) .....

......

3 0
3 years ago
Wages. JoAnn works in the publicity office at the state university. She is paid $10 an hour for the first 35 hours she works eac
rosijanka [135]

Since Joann receives $10 per hour for the first 35 hours, so she receives $350 (35 times $10) before she starts receiving extra hours.

Since she received $515, we know that she worked extra hours.

Let's use the variable x to represent the number of extra hours worked.

So we can write the following equation for the total payment received:

\begin{gathered} 10\cdot35+15\cdot x=515 \\ 350+15x=515 \\ 15x=515-350 \\ 15x=165 \\ x=11 \end{gathered}

She worked 11 extra hours. Adding this to the 35 regular hours, so she worked for 46 hours.

5 0
1 year ago
Read 2 more answers
How many gallons did she purchase, the equation,and car get in 20 miles gallon
Alexus [3.1K]
$15 that the answer. Your welcome
3 0
3 years ago
Each user has a password 6 characters long where each character is an uppercase letter, a lowercase letter, or a digit. Each pas
Lana71 [14]

Answer:

36^{6} -26^6

Step-by-step explanation:

We have 36 characters in total which we can use in order to form a 6 character password.

For each place in this password we have choice of 36 of them, so, the total number of possible passwords of 6 characters is:

36*36*36*36*36*36=36^6

But, we have to exclude all passwords which have no numbers because, by the task, the password must contain at least one digit.

So, now we have choice of 26 characteristic to form password without digits and get 26^6 passwords like that, contained just of letters without digits.

So, the final answer is that we have 36^6-26^6  6-character passwords with at least one digit.

4 0
3 years ago
Ancient paintings were found on cave walls in South America. The Carbon-14 in the paintings was measured and was found to be 19%
balu736 [363]

Answer: C. 13,839 (the answer is not among the given options, however the result is near this value)

Step-by-step explanation:

The exponential decay model for Carbon- 14 is given by the followig formula:

A=A_{o}e^{-0.0001211.t}  (1)

Where:

A is the final amount of Carbon- 14  

A_{o}= is the initial amount of Carbon- 14

t is the time elapsed (the value we want to find)

On the other hand, we are told the current amount of Carbon-14 A  is 19\%=0.19, assuming the initial amount of Carbon-14 A_{o}= is  100\%:

A=0.19A_{o} (2)

This means: \frac{A}{A_{o}}=0.19 (2)

Now,finding t from (1):

\frac{A}{A_{o}}=e^{-0.0001211.t}  (3)

Applying natural logarithm on both sides:

ln(\frac{A}{A_{o}})=ln(e^{-0.0001211.t})  (4)

ln(0.19)=-0.0001211.t  (5)

t=\frac{ln(0.19)}{-0.0001211}  (6)

Finally:

t=13713.717years  This is the age of the paintings and the option that is nearest to this value is C. 13839 years

6 0
3 years ago
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