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liberstina [14]
3 years ago
5

I need help for #1 (an explanation would be great too).

Mathematics
1 answer:
Ivan3 years ago
5 0

Answer:

±6i√2

Step-by-step explanation:

Recall that the square root of a negative number is imaginary, which is shown by the use of "i."

Examples:  √4 = ±2; √4 = i√4 = ±i2

Then √72 = ±√36√2 = ±6√2, and

   

      √(-72) = ± i√36√2 = ±6i√2

         

Note that this is identical to the result shown in the problem:  √(36·2·(-1) )

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A worker has four different job offers, each with a contract for six years. Assuming the job descriptions are identical,
Phoenix [80]

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Answer:

  $48,000 to start, with 6% raises

Step-by-step explanation:

The starting salaries are within a few percentage points of each other, so the majority of the difference in earnings will come because of the raises. The offer with the largest raise percentage is likely the best.

The earnings total can be figured as the sum of a geometric series with a first term of "starting salary" and a growth factor of (1+raise percentage). For starting salary 's' and raise percentage 'r', the total earnings in 6 years will be ...

  S = s((1+r)^6 -1)/r

Here are the total earnings, in thousands, for each of the offers:

  a) s = 49, r = .03, S = 316.95

  b) s = 51, r = .01, S = 313.75

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The worker can earn the most from a starting salary of $48,000 and 6% increases each year.

7 0
3 years ago
Read 2 more answers
I need help again, as quickly as possible.
mestny [16]

Answer:

{ \tt{ \frac{1}{x}  +  \frac{1}{3}  <  \frac{1}{5} }} \\  \\ { \tt{ \frac{1}{x}   >   -  \frac{2}{15} }} \\  \\ { \tt{x >   - \frac{15}{2} }} \\  \\ { \bf{ -  \frac{15}{2} < x < 0 }}

5 0
3 years ago
Help is very much needed :)
ioda

Answer:

6

Step-by-step explanation:

10/5 ×/3 multiply 10×3 and than divide by 5

or another way start with multiplying 5 and n equaling 5n=

than 10× 3= 30 so you're left with 5n=30 divied 30 by 5 equalling 6

so x=6

3 0
3 years ago
cruising works three and a half hours every day and earns $12 per hour she works 5 days a week how much does Kevin earn in 4 wee
IRISSAK [1]
Kevin makes $840 in 4 weeks.

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How much he makes per week
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8 0
3 years ago
Find the measure of the indicated arc
dimaraw [331]

Answer:

arc of WXY= 224°

Step-by-step explanation:

measure of angle C is half of the WXY arc

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112°=1/2 WXY (cross production)

WXY=2×112°

WXY=224 °

5 0
3 years ago
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