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Eddi Din [679]
3 years ago
8

Combine like terms:12x + 3y + 4 - 6y - 9​

Mathematics
2 answers:
wolverine [178]3 years ago
5 0

Answer:

12x - 3y - 5

Step-by-step explanation:

12x + 3y + 4 - 6y - 9 | Given

12x - 3y + 4 - 9 | Subtract 6y from 3y. It becomes -3y.

12x - 3y - 5 | Add +4 and -9 to get -5.

dimaraw [331]3 years ago
4 0

Answer:

12x-3y-5

Step-by-step explanation:

3y-6y=-3y

4-9=-5

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What is the remainder when 1000 to the power of 1000 is divided by 6?
Liono4ka [1.6K]

Answer:

166.666.667

Hopes this helps

Step-by-step explanation:

8 0
3 years ago
HELP PLSSSSS
ludmilkaskok [199]

Answer:

a=21

AB=23.9

BC=19.5

CD=(23.9)

AD=19.5

Step-by-step explanation:

Each pair of parallel sides are equal in a parallelogram. Sense both pairs use the same variable we can just choose the easiest to solve which would be:

a-1.5=19.5

add 1.5 to both sides

a=21

now substitute 21 in for a in each equation.

AB=CD so

AB=23.9

BC=AD so

BC=19.5

CD=(21)+2.9 so

CD=(23.9)

AD is given so

AD=19.5

4 0
2 years ago
Can I get help answering this question? It's a derivatives question, further info in the attachment.
Nadusha1986 [10]
\bf f(x)=|3+9x|\implies f(x)=\sqrt{(3+9x)^2}\implies f(x)=[(3+9x)^2]^{\frac{1}{2}}
\\\\\\
\cfrac{dy}{dx}=\stackrel{chain~rule}{\cfrac{1}{2}[(3+9x)^2]^{-\frac{1}{2}}\cdot 2(3+9x)\cdot 9}\implies \cfrac{dy}{dx}=\cfrac{9(3+9x)}{[(3+9x)^2]^{\frac{1}{2}}}
\\\\\\
\cfrac{dy}{dx}=\cfrac{27+81x}{|3+9x|}\\\\
-------------------------------

\bf \textit{left-hand derivative at }x=-\frac{3}{9}\implies \cfrac{27+81x}{-(3+9x)}
\\\\\\
\cfrac{27+81\left( -\frac{3}{9} \right)}{-3-9\left( -\frac{3}{9} \right)}\implies \cfrac{27-27}{-3+3}\implies \stackrel{unde fined}{\cfrac{0}{0}}\\\\
-------------------------------\\\\
\textit{right-hand derivative at }x=-\frac{3}{9}\implies \cfrac{27+81x}{+(3+9x)}
\\\\\\
\cfrac{27+81\left( -\frac{3}{9} \right)}{3+9\left( -\frac{3}{9} \right)}\implies \cfrac{27-27}{3-3}\implies \stackrel{unde fined}{\cfrac{0}{0}}
8 0
3 years ago
Sandra worked 6.2 hours on Wednesday,5.5 hours on Thursday, and 3.5 hours on Friday. What is the mean number of hours she worked
erma4kov [3.2K]
5.0666666667=(6.2+5.5+3.5)/3, which would round to an average of 5 hours worked per day
7 0
3 years ago
A rock concert promoter scheduled an outdoor concert on July 4th. If it does not rain, the promoter will make $30,427. If it doe
Zielflug [23.3K]

For the probability of rain on julty 4h of 0.5 his expected profit is  8885.5 dollars.

<h3>What is probability?</h3>

The probability is occurrence of a certain event out of the total number f events that can happen.

Given in the question the probability of rain is 0.5 therefore the probability of not raining is also 0.5.

If it does not rain he makes a profit of 30427 dollars and if it rains he suffers a loss of 12656 dollars.

We know, the expected profit is,

= 0.5(30427) - 0.5(12656).

= 15213.5 - 6328.

= 8885.5 dollars.

learn more about probability here :

brainly.com/question/11234923

#SPJ1

8 0
1 year ago
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