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soldier1979 [14.2K]
3 years ago
10

Please help ! Desperate here ! Evaluate the expression : 2{5[12+5(500-100)+399]}

Mathematics
1 answer:
-Dominant- [34]3 years ago
3 0

Answer:

hope this will help


Step-by-step explanation:


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Pls help need ASAP Use the number line given to choose the best answer for the question.
DIA [1.3K]

Answer:

-3

Step-by-step explanation:

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Which expression is equivalent to 7y + 7y?<br> 49y<br> 14y<br> 14 + 2y<br> 7y2
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14y is the answer :)
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Read 2 more answers
Which of the following sets of lengths can Sean use to make a right triangle?
Aleks [24]

Answer:

{8 cm, 15 cm, 17 cm}

Step-by-step explanation:

we know that

The length sides of a right triangle must satisfy the Pythagoras Theorem

so

c^2=a^2+b^2

where

c is the greater side (the hypotenuse)

a and b are the legs (perpendicular sides)

<u><em>Verify each case</em></u>

case 1) we have

{5 cm, 15 cm, 18 cm}

substitute in the formula

18^2=5^2+15^2

324=250 ----> is not true

therefore

Sean cannot make a right triangle with this set of lengths

case 2) we have

{6 cm, 12 cm, 16 cm}

substitute in the formula

16^2=8^2+12^2

256=208 ----> is not true

therefore

Sean cannot make a right triangle with this set of lengths

case 3) we have

{5 cm, 13 cm, 15 cm}

substitute in the formula

15^2=5^2+13^2

225=194 ----> is not true

therefore

Sean cannot make a right triangle with this set of lengths

case 4) we have

{8 cm, 15 cm, 17 cm}

substitute in the formula

17^2=8^2+15^2

289=289 ----> is true

therefore

Sean can make a right triangle with this set of lengths

6 0
2 years ago
Solve the problem. The half-life of plutonium-234 is 9 hours. If 50 milligrams is present now, how much will be present in 6 day
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Answer:

  4)  0.001

Step-by-step explanation:

The amount (a) present in h hours is ...

  a(h) = (initial value)×(1/2)^(h/(half-life))

6 days is 6×24 hours, so the amount remaining is ...

  a(6×24) = 50×(1/2)^(6×24/9) = 50/2^16 ≈ 0.001 . . . . milligrams

3 0
2 years ago
Which of the following points lies on the circle whose center is at the origin and whose radius is 10?
aliina [53]
The answer is (6,-8)
7 0
2 years ago
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