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Kay [80]
2 years ago
10

Help me please please

Mathematics
1 answer:
ratelena [41]2 years ago
4 0
When dividing same numbers with different exponents (they’re both 10 so this works different than if they were different numbers) you subtract the top exponent by the bottom exponent. So 15-4=11 ultimately making the solution 10^11. Hope this helps :)
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What is the difference of (5 + 3i) and (2 + 9i)?
ehidna [41]

Answer:

3+12i

Step-by-step explanation:

The difference of 5+3i and 2 + 1999 can be calculated as follows

= 5+3i - 2+9i

Collect the like terms

= 5-2+3i+9i

= 3+12i

Hence the difference of 5+3i and 2+9i is 3+12i

7 0
3 years ago
The graph of a 10th-degree polynomial must cross the x-axis exactly once? True or False?
Ghella [55]
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Could life live on earth if thare was oling oxygen in the air??????
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8 0
3 years ago
The perimeter of a rectangular is 58 cm. The length is 5 more than twice the width.
riadik2000 [5.3K]
<h3>Answer:</h3>

a) l = 5 + 2w

b) P = 2(l +w) = 2(5 +2w +w)

c) w = 8 cm, l = 21 cm

<h3>Explanation:</h3>

a) Using w for width, twice the width is 2w, and 5 more than that is 5+2w. This is your expression for l:

... l = 5 + 2w

b) The perimeter is the sum of the lengths of all sides, so is the sum of twice the length and twice the width.

... P = 2(l +w) = 2(5 +2w + w) . . . . substituting for l using the expression of (a)

c) Substituting the given perimeter, we have ...

... 58 = 2(5 +3w) = 10 + 6w . . . . . collect terms, eliminate parentheses

... 48 = 6w . . . . . . . . . . . . . . . . . . subtract 10

... 8 = w . . . . . . . . divide by 6

... l = 5 + 2·8 = 21 . . . . . find length using the formula for it

Dimensions are in centimeters, so we can write the solution as ...

  • width = 8 cm
  • length = 21 cm
6 0
3 years ago
There are 12 girls and 16 boys and Javier's math class or 26 girls and 14 boys and Javier's core class is the race ratio of girl
Advocard [28]
No the ratios are not equivalent.
3 0
3 years ago
Read 2 more answers
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