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OleMash [197]
2 years ago
13

17. Anna is 157.5 centimeters tall and her

Mathematics
1 answer:
Alinara [238K]2 years ago
5 0
15.26 mm. All you gotta do is convert the millimeters to centimeters, and that subtract. Make sure the decimal point is right, tho. :)
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find the least perfect square that is exactly divisible by each of the numbers 5 , 18 , 25 and 27 . ​
Dimas [21]
<h3>☂︎ Answer :- </h3>

  • 8100
<h3>☂︎ Solution :- </h3>

  • LCM of 5 , 18 , 25 and 27 = 2 × 3³ × 5²
  • 2 and 3 have odd powers . To get a perfect square, we need to make the powers of 2 and 3 even . The powers of 5 is already even .

In other words , the LCM of 5 , 18 , 25 and 27 can be made a perfect square if it is multiplied by 2 × 3 .

The least perfect square greater that the LCM ,

☞︎︎︎ 2 × 3³ × 5² × 2 × 3

☞︎︎︎ 2² × 3⁴ × 5²

☞︎︎︎ 4 × 81 × 85

☞︎︎︎ 100 × 81

☞︎︎︎ 8100

8100 is the least perfect square which is exactly divisible by each of the numbers 5 , 18 , 25 , 27 .

7 0
2 years ago
Sarah is the oldest out of here four sisters. Her youngest sister is half her age. The 2 other sisters are twin and are 2 years
marusya05 [52]
Sarah is 14
The twins are 12
The youngest (n) is 7

14+(12+12)+7=45

n=7
7 0
3 years ago
Write the expression as the sin or cosine of an angle.<br> sin pi/3 cos pi/7 - sin pi/7 cos pi/3
postnew [5]

sin(4π21). Explanation: Notice that this fits the form of the sine subtraction formula: sin(A−B)=sin(A)cos(B)−cos(A)sin(B).

5 0
2 years ago
Erica makes 27 dollers every 4 1/2 hours. How much does she make for 12 hours ?
kodGreya [7K]

Answer:

72 dollars I believe

Step-by-step explanation:

5 0
3 years ago
(1,-7) with a slope of -5 as an equation
Butoxors [25]

I'm assuming you want an equation with a slope of -5 that also passes through the point (1, -7).

An equation that fits this is

y =  - 5x - 2

Hope this helps!

4 0
3 years ago
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