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3 years ago

At the Planetarium, tickets cost $10 for adults and $5.50 for kids under 12. How

Mathematics

1 answer:

Bezzdna [24]3 years ago

5 0

Answer:

I do not understand 1234

Step-by-step explanation:

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The graph shows the amount of money paid when purchasing bags of candy at the zoo: A graph is shown. The x-axis is labeled from

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I'm positive that it is one

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3 years ago

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If there are 70 dogs to every 5 cats how many dogs are there to 70 cats

bixtya [17]

Answer:

980

Step-by-step explanation:

they are 14 5s in 70 so you only need to multiply 14×70 =980 or you can add 70 to itself 14 times

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3 years ago

Factor the polynomial completely

yawa3891 [41]

Answer:

Step-by-step explanation:

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3 years ago

If AB = 2x, and BC = x+5 and AC = 17 find X

8_murik_8 [283]

Answer:

x = 4

Step-by-step explanation:

AB + BC = AC,

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2 years ago

Write an augmented matrix of each system. Then, solve each system using matrix notation. Describe the solution set in vector not

Naddik [55]

Answer:

The answer is below

Step-by-step explanation:

Given the system of equations:

x + y + 2z = 9

2x + 4y - 3z = 1

3x + 6y - 5z = 0

This system of equation can be solved using matrix. This done by first representing the equations as matrix and then solving:

The matrix form is:

$\left[\begin{array}{ccc}1&1&2\\2&4&-3\\3&6&-5\end{array}\right] \left[\begin{array}{c}x\\y\\z\end{array}\right] = \left[\begin{array}{c}9\\1\\0\end{array}\right] \\\\\\ \left[\begin{array}{c}x\\y\\z\end{array}\right] =\left[\begin{array}{ccc}1&1&2\\2&4&-3\\3&6&-5\end{array}\right] ^{-1} \left[\begin{array}{c}9\\1\\0\end{array}\right] \\\\\\$

$\left[\begin{array}{c}x\\y\\z\end{array}\right] =\left[\begin{array}{ccc}2&-17&11\\-1&11&-7\\0&3&-2\end{array}\right] \left[\begin{array}{c}9\\1\\0\end{array}\right] \\\\\\ \left[\begin{array}{c}x\\y\\z\end{array}\right] =\left[\begin{array}{c}1\\2\\3\end{array}\right]$

5 0

2 years ago