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Oxana [17]
3 years ago
10

Find the common difference in the arithmetic sequence, an, in which a3=11 and a12=74.​

Mathematics
1 answer:
lana66690 [7]3 years ago
3 0

Answer:

d=7

Step-by-step explanation:

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A cell phone tower covers a circular area with a radius of 15 miles. You are at a location that is 11 miles west and 12 miles so
Murljashka [212]

Answer:

No you do not.

This is because we can use Pythagoras Theorem to show that our location sits outside the 15 mile radius of the cell tower.

To work is out you would write the equation

{11}^{2}  +  {12}^{2}  = 265

Then to work out the Hypotheses you would

\sqrt{265}  = 16.2788205961

Which proves that the location is outside of the 15 Mile radius of the cell tower.

3 0
2 years ago
Please someone help this question is hurting my small brain. ​
ki77a [65]
22.4

If the bottom side is 20 cm, then each line BE and CE would each be 10 cm.

Now, just focus on the top left triangle. You have one side with 20 cm, and the other side with 10 cm. You are left with the hypotenuse, which you need to figure out the value of.

Since this is a right triangle, you can use the Pythagorean theorem -> a^2 + b^2 = c^2 where c is the hypotenuse.

20^2 + 10^2 = c^2
400 + 100 = c^2
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5 0
3 years ago
Read 2 more answers
What is x-35>15? plz help
alexira [117]

Answer: x > 50

Step-by-step explanation:

5 0
2 years ago
Solve the system: {-2(a-b)+16=3(b+7), 6a-(a-5)=-8-(b+1)
givi [52]

Answer:

a=−3 and b=1

Step-by-step explanation:

7 0
2 years ago
A team played 20 games and won 18. what % did they win?
maxonik [38]

<u>Answer:</u> 90%

<u>Reasoning:</u> To solve this divide 18 by 20

18/20= 0.9

Now multiply 20 by 0.9 to check

20 x 0.9= 18


8 0
2 years ago
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