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3 years ago

HELP HELP HELP HELP !!!!!!

Mathematics

2 answers:

g100num [7]3 years ago

8 0

Answer:

Step-by-step explanation:

that is what I know and if I'm wrong please tell me right away I'll try it out again thank you

Sav [38]3 years ago

6 0

Answer:

5 meters

Step-by-step explanation:

The room is rectangular, so the two walls and the diagonal (distance between opposite corners) form a right triangle.

We can use $a^2 + b^2 = c^2$ to compute the other wall's length:

$13^2 = 12^2 + x^2\\169 = 144 + x^2\\25 = x^2\\x = \pm 5$

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Solve the system by substitution. Check your solution.

Anastaziya [24]

Answer: b

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3 years ago

I really need help. Solving Systems with Substitution y=2x x+y=(-9)

Viktor [21]

Answer:

Step-by-step explanation:

If you let y=2x, you can plug it into the other equation.

x+2x=-9

Then solve that equation.

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Then use y=2x to find y.

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4 years ago

A pair of fair dice is cast. What is the probability that the sum of the numbers falling uppermost is less than 4, if it is know

mestny [16]

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4 years ago

Mr. Vander Heydens tie costs 3 times as much as Mr bentelys tie. Together they spent $128. What what the price of each of their

Artyom0805 [142]

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4 years ago

3 + x ≥ 12 solve the inequality

kherson [118]

$3 + x \geq 12 \\ \\ x \geq 12 - 3 \\ \\ x \geq 9 \\ \\$

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The final result is: x ≥ 9.

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3 years ago