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Blababa [14]
3 years ago
7

Please helpmuch appreciated ​

Mathematics
1 answer:
S_A_V [24]3 years ago
6 0

Answer:

P = 2x + 2y + 8

Step-by-step explanation:

The perimeter (P) of a rectangle is calculated as

P = 2(l + w) ← l is length and w is width , then

P = 2(x + 5 + y - 1) ← distribute parenthesis

  = 2x + 10 + 2y - 2 ← collect like terms

  = 2x + 2y + 8

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Solve the system of equations. If the system has no solution, say that it is inconsistent. Graph the lines of the system.
Romashka-Z-Leto [24]

Answer:

The solution to the system of the equations will be:

x=3,\:y=1

Step-by-step explanation:

Given the system of the equations

x+y=4

x-y=2

solving the system of the equations

\begin{bmatrix}x+y=4\\ x-y=2\end{bmatrix}

x-y=2

-

\underline{x+y=4}

-2y=-2

solving

-2y=-2

Divide both sides by -2

\frac{-2y}{-2}=\frac{-2}{-2}

y=1

\mathrm{For\:}x+y=4\mathrm{\:plug\:in\:}y=1

x+1=4

x=3

Therefore, the solution to the system of the equations will be:

x=3,\:y=1

5 0
3 years ago
Choose the correct description of the graph of the inequality x - 3 >= 5.
lions [1.4K]

The <em><u>correct answer</u></em> is:

D) Closed circle on 8, shading to the right.

Explanation:

First we must solve the inequality:

x - 3 ≥ 5

Add 3 to each side:

x - 3 + 3 ≥ 5 + 3

x ≥ 8

To graph this, we want a circle on 8 Since it is "greater than or equal to," 8 is included in the solution set. This means the circle will be closed.

Since it is "greater than," we want the numbers to the right of 8 on the number line.

This means the inequality will be a closed circle and shaded to the right.

8 0
3 years ago
Read 2 more answers
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Answer:

m=4

Step-by-step explanation:

-5m=-20

m= - 20/-5

m=4

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natka813 [3]
T = -18 hope this helped
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