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stealth61 [152]
2 years ago
5

Which of the following expressions is equivalent to x² - 121? *

Mathematics
1 answer:
bearhunter [10]2 years ago
6 0
Answer: B

Hdhzhshxhdhdhhdhdhdhdhdhdhdhdd
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A boat travels at a rate of 18 kilometers per hour from its port. A second boat is 34 kilometers behind the
Anna11 [10]

Answer:

The second boat will catch up in 8.5 hours, and they will be 187 km from their port.

Step-by-step explanation:

Since the system of equations are d=18t+34 and d=22t, you first rewrite d=18t+34 as an equation. 18t+34=22 and that equals to 8.5=t. Then you solve the next one d=22t and the answer you got from the other equation, you substitute d=22(8.5) and that equals to 187.

3 0
3 years ago
3(x + 1) = -2(x - 1) - 4
Svetllana [295]

Answer:

<h2><em><u>x = -1</u></em></h2>

Step-by-step explanation:

<em><u>1. Distribute</u></em>

3x + 3 = -2x + 2 - 4

<em><u>2. Simplify</u></em>

-2x + 2 - 4

2-4 = -2

-2x - 2

<em><u>3. Solve</u></em>

3x + 3 = -2x - 2

+2x       +2x

<em><u>4. Cont. Solving</u></em>

5x + 3 = -2

     -3     -3

5x = -5

<em><u>5. Divide by 5</u></em>

5x = -5

/5      /5

<h2><em><u>x = -1</u></em></h2><h2><em><u /></em></h2>

Hope this helped,

Kavitha Banarjee

8 0
3 years ago
I need help quickly!
Margarita [4]

Answer:

circumference of the circle= 2πr

2πr= 52π

r= 52/2= 26 inches

diameter = 2r= 2×26=52 inches

option B

5 0
3 years ago
Please help! 20 points!
DIA [1.3K]

Answer:

i dont know sorry

Step-by-step explanation:

7 0
3 years ago
find the area of a triangle with the following dimensions: a = 12 yards b=16 yards and c=24 yards round to the nearest square ya
melisa1 [442]
P=52 yards
p=26 yards
A=square p(p-a)(p-b)(p-c)
A=square26(26-12)(26-16)(26-24)
A=square 26x14x10x2
A=85 yards^2
8 0
4 years ago
Read 2 more answers
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