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Svetradugi [14.3K]
3 years ago
12

How to rewrite√-49 -4 in complex number notation

Mathematics
1 answer:
stira [4]3 years ago
5 0
Sqrt(49)*sqrt (-1) -4 = 7i-4
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Can I have halp with all and an explanation because I am terrible at properties.
Salsk061 [2.6K]
1.   4 • (–3) • 5
   so 4 x (-3) = -12  and then -12 x 5 = -60
2.   (2.25 x 23) x 4
so (2.25 x 23) 51.75  and then 51.75 x4 = 207
4.  5 x 12 x (-2)
 so 5 x 12 = 60  and then 60 x (-2) = -120
5.   35(26)(0) =
  so 35 x 26 = 910  and then  910 x 0 = 0

4 0
3 years ago
(m • n)-1 = <br> What is the answer to this question?
julsineya [31]
Fill in m and n with numbers then minus by one
6 0
3 years ago
A bag contains 22 coins consisting of quarters and nickels. The total value of the coins is $3.90. How many nickels are in the b
bezimeni [28]

Answer:

8 Nickels

Step-by-step explanation:

Since a Nickel is worth 5 cents ($0.05)

And a Quarter is worth 25 ($0.25)

and theres 22 coins

8 of those coins would be nickels which would mean we add 8 nickels up

8 x 0.05 = 0.4

then we add the quarters up

14 x 0.25 = 3.5

3.5 + 0.4 = $3.90

8 0
3 years ago
A bag of fruit contains 4 apples, 1 plum, 2 apricots, and 3 oranges. Pieces of fruit are drawn twice with replacement. What is P
bezimeni [28]
Since there is replacement, drawings are independent which means that the result of one of them does not affect the others.
Probability of drawing an apple is 4/10 (4 apple out of 10 fruits)
Probability of drawing an apricot is 2/10
Probability on one happening consecutively to the other (thanks to independence) is 4/10*2/10=8/100
Which can be simplified to 2/25
6 0
3 years ago
Luke owns a trucking company. For every truck that goes out, Luke must pay the driver $17 per hour of driving and also has an ex
inna [77]

Answer:

17h+70h=522

The driver drove 6 hours.

Step-by-step explanation:

H=Hours

522=total cost

5 0
3 years ago
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