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Iteru [2.4K]
2 years ago
9

2. What is the surface area of the ball shown?

Mathematics
1 answer:
weqwewe [10]2 years ago
4 0
127.17 because 9x9=81 and 81x3.14=254.34 then divide by 2 and it’s equal 127.17
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5/15 = n/9 someone help me (proportions)
goblinko [34]

Answer:

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Step-by-step explanation:

3 0
2 years ago
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To rent a certain meeting room, a college charges a reservation fee of $49 and an additional fee of $5.40 per hour. The chemistr
elena-14-01-66 [18.8K]

Answer:

The maximum amount of money the chemistry club can spend without going over their buget is $81.4 ... With a total of 6 hours their allowed to use the room for.

Step-by-step explanation:

$49 is our constant and will not change. 5.40 however will. Let's use variable h for the amount hours they can rent the room for. Now we can make an inequality;

49+ 5.40h < 86.80

5.40h < 86.80

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Now that we know h will have to be less than seven for the chemistry club to spend less than their buget we can find that 6 is the maxium amount of hours they can spend in the room while staying within their budget.

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6 0
2 years ago
To reach a vacation spot, the Jones family first traveled by plane and then drove the
navik [9.2K]

The distance flown by plane is 750 kilometers.

Step-by-step explanation:

Let,

Distance traveled by plane = x

Distance traveled by car = y

Total distance = x+y

According to given statement;

The distance by car was 125 kilometers less than the  distance by plane.

y = x - 125    => x=y+125  Eqn 1

The total distance was 500 kilometers less than three times the distance traveled by car.

Total distance = 3y - 500

x+y=3y-500   Eqn 2

Putting value of x from Eqn 1;

(y+125)+y=3y-500\\y+y+125=3y-500\\2y=3y-500-125\\2y-3y=-625\\-y=-625\\y=625

Putting y=625 in Eqn 1

x=625+125\\x=750

The distance flown by plane is 750 kilometers.

Keywords: linear equations, substitution method

Learn more about linear equations at:

  • brainly.com/question/10435816
  • brainly.com/question/10435836

#LearnwithBrainly

3 0
3 years ago
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tia_tia [17]
Correlation coefficient is always between -1 and +1. So it cannot be +2.3
7 0
3 years ago
How many milliliters are in 12.34 liters?
NNADVOKAT [17]

Answer:

12,340 mL

Step-by-step explanation:

12.34 L x 1000= 12,340 mL

7 0
4 years ago
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