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STatiana [176]
3 years ago
9

PLEASE HELP! Solve by completing the square x^2+8x = -20

Mathematics
1 answer:
pentagon [3]3 years ago
5 0

Answer: x= -4+/- 2i

Step-by-step explanation: Used the formula (b/2)^2  to create a new term. I solved for x.

FYI

+/- means plus or minus sign I couldn't find the symbol on my key board. Hope this helps!

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A six-sided number cube is rolled 600 times. The results are 246 even numbers and 354 odd numbers.
Kay [80]

Answer:

Relative frequency is defined as the number of "desired" results divided by the total number of possible results. Experimental probability is defined the same way. This means that the first choice is best, the experimental probability and relative frequency are the same.

The theoretical probability, on the other hand, would be 0.5, or 300/600, which is larger than the experimental probability.

Step-by-step explanation:

3 0
3 years ago
1) Fred Flint is paid $11.95 an hour with time-and-a-half pay for all hours he works over 40
allsm [11]

Fred's overtime rate and pay is $17.925 and $98.5875 respectively

<h3>Total payment</h3>

  • Amount paid per hour = $11.95

  • Amount paid overtime per hour = $11.95 × 1.5

= $17.925

  • Total hours worked last week = 45 1/2 hours

  • Overwork time = 45 1/2 hours - 40 hours

= 5 1/2 hours

Fred's overtime pay = 5 1/2 hours × $17.925

= 11/2 × 17.925

= $98.5875

Normal work rate = 40 hours × $11.95

= $478

Fred's total pay = Fred's overtime pay + Normal work rate

= $98.5875 + $478

= $576.5875

Therefore, Fred's total pay is $576.5875

Learn more about total pay:

brainly.com/question/2021001

#SPJ1

5 0
2 years ago
What is 3/5 of $40? so hard!!!
AlekseyPX
24 is the answer you are looking for
3 0
3 years ago
Read 2 more answers
The triangle and rectangle have the same perimeter.find the value of x.
sesenic [268]

Answer:

x + 5  \:  +  \: x \:  + 6 \:  + x + 7 = 2x - 1 + x + 7 + x + 7 + 2x - 1

3x + 18 = 6x + 12

18 = 3x + 12

6 = 3x

x = 6 \div 3 = 2

x = 2

<h2>I hope this helps you !! </h2>

5 0
3 years ago
Akio wants to make a scale drawing that is 1/5 of the size of the original painting.the orignal painting is 14 inches long how l
Aliun [14]
The other painting will be 2.8 inches long.
3 0
3 years ago
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