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galina1969 [7]
3 years ago
12

Can someone help me with all 3 questions thanks 10 points a question​

Mathematics
1 answer:
butalik [34]3 years ago
8 0

Answer:

2.) -2x+8

4.) 4x+3

6.)4x-5

Step-by-step explanation:

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Find the value of x in the triangle shown below.<br> a. x=21<br> b. x=42<br> c. x= 15<br> d. x=21
elena55 [62]

THEOREM:

  • <u>Pythagorean theorem</u>:— In a right-angled triangle, the square of the hypotenuse side is equal to the sum of squares of the other two sides.

ANSWER:

By pythagorean property,

  • x² = 12² + 9²
  • x² = 144 + 81
  • x² = 225
  • x = √225
  • x = 15 units.

So, <u>Correct choice</u> - [C] 15 units.

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3 years ago
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Karl wants to rent a bike for at most $55. He can rent a bike for $7 per hour plus a $9.50 flat fee. Any portion of an hour is c
Papessa [141]
Answer 6 hours
Reason
7x + 9.50 = 55
-9.50. -9.50 subtract from both sides
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Divide both sides by 7 to isolate x
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Which is the equivalent expression in its most simplified form? <br><br> 5(2x – 3) + 7
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5(2x-3)+7
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