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musickatia [10]
3 years ago
13

Can someone please help me with this

Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
5 0

Answer:

I'm not to sure about this particular answer but it should be b: $1,354 .. you should also research on it more

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It is impossible for a system of linear equations to have exactly two solutions. explain why
SCORPION-xisa [38]

A linear equation represents a straight line.Thus, the solution of the system of linear equation depends on whether the lines intersect, not intersect or same line.

We have below cases:-

  • The lines are non parallel and intersect at exactly one point. In this case we have one solution.
  • The lines are parallel and hence never intersect. There is no solution in this case.
  • The two lines represents the same line. Hence, infinitely many solutions.

We never got exactly two solutions because two lines can intersect at a single point.

8 0
4 years ago
Samir ran for 10 minutes, stopped and stretched for 5 minutes, walked for 20 minutes, and ran for another 15 minutes.
vfiekz [6]

Answer: Samir stopped and stretched for 5 minutes.

8 0
3 years ago
Solve for x: 4 − (x + 2) < −3(x + 4) 90 points!!!!!
slava [35]

Hello :)

First, solve each side before we solve the inequality

4 − (x + 2)                                                                  

−3x − 12                                                                              

− (x+2)

4 − x − 2

*group the like terms*

− x + 4 − 2

− x + 2

−3(x + 4)

−3(x + 4)

3x − 12

− x + 2 < 3x − 12

subtract 2 from both sides

− x + 2 < −3x − 12

      -2             -2

−x < − 3x − 14

add 3x to both sides

−x < − 3x − 14

+3x   +3x

2x < − 14

divide both sides by 2

\frac{2x}{2}<\frac{-14}{2}

<h2>x < − 7</h2>

8 0
3 years ago
What is the value of x, if twice x plus 3 cubed equals 40?
tatuchka [14]

I will give two solutions, one where everything is cubed and one where just the 3 is cubed, because I don't know what you meant.

Just the 3 is cubed solution(Which I think is correct because it has a nicer answer):

Answer:

13/2

Step-by-step explanation:

We have that 2x+3^3=40.

We can subtract 3^3=27 from both sides of the equation to get 2x=13.

We can then divide by 2 to get x=13/2.

So, \boxed{x=13/2} and we're done!

Everything is cubed solution:

Answer:

\sqrt[3]{5}-3/2

Step-by-step explanation:

We have that (2x+3)^3=40.

We can take the cube root of both sides to get 2x+3=\sqrt[3]{40}.

Note that 40=2^3*5, so \sqrt[3]{40}=\sqrt[3]{2^3*5}=2\sqrt[3]{5}.

So, we want to solve 2x+3=2\sqrt[3]{5}.

We can subtract 3 from both sides to get 2x=2\sqrt[3]{5}-3.

We can then divide both sides by 2 to get x=\sqrt[3]{5}-3/2.

So, \boxed{x=\sqrt[3]{5}-3/2} and we're done!

6 0
3 years ago
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astraxan [27]
\bf \qquad \textit{Compound Interest Earned Amount}&#10;\\\\&#10;A=P\left(1+\frac{r}{n}\right)^{nt}&#10;\quad &#10;\begin{cases}&#10;A=\textit{accumulated amount}\\&#10;P=\textit{original amount deposited}\to &\$9000\\&#10;r=rate\to 6\%\to \frac{6}{100}\to &0.06\\&#10;n=&#10;\begin{array}{llll}&#10;\textit{times it compounds per year}\\&#10;\textit{semi-annually, thus twice}&#10;\end{array}\to &2\\&#10;&#10;t=years\to &9&#10;\end{cases}&#10;\\\\\\&#10;A=9000\left(1+\frac{0.06}{2}\right)^{2\cdot 9}
7 0
3 years ago
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