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elena55 [62]
3 years ago
6

I'm not very good at algebra I need help with this lol

Mathematics
2 answers:
MatroZZZ [7]3 years ago
4 0

Answer:

Answer is 33

Step-by-step explanation:

If x equals 3, then the equation simplifies to 6 squared - (9/3)

9 divided by 3 is 3, then 6 squared is 36.

36-3 = 33. Hope this helps!

Tanzania [10]3 years ago
3 0
I need a question ok this is the a question
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Tell whether the ordered pair is a solution of the given system. (-2,-4) {y=1/2x -3, y=-2x-8}
kompoz [17]

Answer:

The ordered pair (-2,\, -4) is indeed a solution to the system:

\left\lbrace\begin{aligned} & y = \frac{1}{2}\, x - 3 \\ & y = -2\, x - 8\end{aligned}\right..

Step-by-step explanation:

Consider a system of equations about variables x and y. An ordered pair (x_{0},\, y_{0}) (where x_{0} and y_{0} are constant) is a solution to that system if and only if all equations in that system hold after substituting in x = x_{0} and y = y_{0}.

For the system in this question, (-2,\, -4) would be a solution only if both equations in the system hold after replacing all x in equations of the system with (-2) and all y with (-4).

The \texttt{LHS} of the equation y = (1/2)\, x - 3 would become (-4). The \texttt{RHS} of that equation would become (1/2) \, (-2) - 3. The two sides are indeed equal.

Similarly, the \texttt{LHS} of the equation y = -2\, x - 8 would become (-4). The \texttt{RHS} of that equation would become (-2)\, (-2) - 8. The two sides are indeed equal.

Thus, x = (-2) and y = (-4) simultaneously satisfy both equations of the given system. Therefore, the ordered pair (-2,\, -4) would indeed be a solution to that system.

8 0
2 years ago
21. Mickey earned $475 from mowing lawns last summer. He deposited this money in an
Dennis_Churaev [7]

Answer:

first, u need to know the formula for compound interest, which is:

A = P(1 + \frac{r}{100})^{n}

where A is the final amount

P- initial amount

r- percent compounded(interest)

and

n- number of years

so

we have

A = 475(1 + \frac{3.8}{100})^{4}

3.8/100 = 0.038

1+0.038 =1.038

1.038^4 = 1.160885573136

475 * 1.160885573136 = 551.4206472396‬

approximately $551.42

5 0
3 years ago
What is <br> (2ab-a+2) - (-ab-2)
Greeley [361]

Step-by-step explanation:

iknow but its hard to expalin

8 0
2 years ago
Kevin and Randy Muise have a jar containing 59 coins, all of which are either quarters or nickels. the total value of the coins
valkas [14]

Answer:

there are 28 quarters and 13 nickels

Step-by-step explanation:

6 0
3 years ago
Help please ...................
GarryVolchara [31]

Answer:

2( \frac{1}{2}5 \times 6.4)  + 2( \frac{1}{2} 5 \times 12.4) \\  = 2(16) + 2(31) \\  = 32 + 62 \\  = 94m ^{2}

6 0
3 years ago
Read 2 more answers
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