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KIM [24]
3 years ago
9

Find the value of 1/3^-2​

Mathematics
1 answer:
ohaa [14]3 years ago
3 0

Answer:

9

Step-by-step explanation:

just reciprocate and change the negative sign to positive

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The weight of an object on Earth varies directly as the weight of the same object on the moon. A 300 pound object on Earth would
slava [35]

Answer: 12 pounds.

Step-by-step explanation:

To solve this question, we'll use the direct proportion which is.

y = kx

Where,

y = weight on moon = 48 pounds

x = weight on Earth = 300 pounds

k = Unknown

y = kx

48 = 300k

k = 48/300

k = 0.16

The weight that a 75 pound object on Earth would weigh on the moon will be:

y = kx

where,

y = weight on moon = Unknown

k = 0.16

x = weight on Earth = 75 pounds

y = kx

y= 0.16 × 75

y = 12 pounds

The weight on the moon will be 12 pounds.

7 0
3 years ago
Which terms in the following expression are like terms?
Alinara [238K]

9514 1404 393

Answer:

  (c)  5x and 3x, and 4 and 1

Step-by-step explanation:

Like terms have the same variable(s) to the same power(s).

The terms of this expression are ...

  • x^3: variable x, power 3
  • 5x: variable x, power 1
  • -3x: variable x, power 1
  • 3y: variable y, power 1
  • 4: no variable
  • -1: no variable

The like terms are {5x, -3x}, which have the x-variable to the first power, and {4, -1}, which have no variable.

6 0
2 years ago
A wall that is 10 feet high and 20 feet long contains one ton of bricks. How many tons should be purchased to brick a wall that
vitfil [10]

Answer:

9 tons

Step-by-step explanation:

So first we have to figure out the area of the smaller wall. We know it is 10 feet high and 20 feet long, so we multiply the length and width together to get 200 square feet, and that equals 1 ton. Now if we take the 1800 square foot wall and divide it by the smaller wall, we get 9. This is because the larger wall is 9 times the size of the smaller wall. So if the smaller wall needs 1 ton, and the larger would need 9 times the amount, we would need 9 tons.

7 0
3 years ago
Read 2 more answers
What do u mean by lcm​
algol13
Least common multiple
8 0
2 years ago
Is 7/12 bigger than 1/2
Varvara68 [4.7K]
Lets think of it this way:-

1/2 is one half

Whats half of 12? 6 

Now, 7 is greater than 6, which means the fraction 7/12 is greater than 1/2

Answer: 7/12 is bigger 
7 0
3 years ago
Read 2 more answers
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