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mina [271]
4 years ago
7

Please help with this question!

Mathematics
1 answer:
erma4kov [3.2K]4 years ago
7 0
1 and 8
because they are exterior angles because they are on the outside and alternate because they are on opposite sides
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Sauron [17]

Answer:

<h2>a = -2, b = -2 </h2>

Step-by-step explanation:

\left\{\begin{array}{ccc}-5a+b=8&\text{add}\ 5a\ \text{to both sides}\\7a+9b=-32\end{array}\right\\\\\left\{\begin{array}{ccc}b=5a+8&(1)\\7a+9b=-32&(2)\end{array}\right\\\\\text{Substitute (1) to (2):}\\\\7a+9(5a+8)=-32\qquad\text{use the distributive property}\\\\7a+(9)(5a)+(9)(8)=-32\\\\7a+45a+72=-32\qquad\text{subtract 72 from both sides}\\\\52a=-104\qquad\text{divide both sides by 52}\\\\\boxed{a=-2}\\\\\text{Put the value of}\ a\ \text{to (1):}\\\\b=5(-2)+8\\\\b=-10+8\\\\\boxed{b=-2}

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3 years ago
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vladimir2022 [97]

Answer:

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astra-53 [7]
#12 1000 because their is 2 ticks to $2000 meaning that each tick is $1000

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I hope this helps if it did please help me out by marking this comment as the brainiest answer. Helps me out a lot goodluck
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Find the area of the rectangle in cm2<br> 12 CM<br> 5 CM
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Step-by-step explanation:

12CMx

5M

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