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gregori [183]
3 years ago
15

Which of the following is equivalent to -9-√-36

Mathematics
1 answer:
LenKa [72]3 years ago
3 0

Answer:

The answer to your question is:  -9 - 6i

Step-by-step explanation:

Process

\sqrt{-36} = \sqrt{(-1)(36)} = \sqrt{-1} \sqrt{36} = (6i)

= - 9 - (6i)

= -9 - 6i

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A rectangle has a length of 28 in and a width of 3ft. what is the perimeter of the rectangle?
finlep [7]

Answer: The answer is 62 ft.

Step-by-step explanation:

To find the perimeter, you do 2 times the width and 2 times the length. 3 times 2 equals 6 and 28 times 2 equals 56. 6+56=62

5 0
3 years ago
before Christmas a story steals fake Christmas trees for $289 after Christmas they sell the same trees for $150 what is the appr
Katarina [22]
48% decrease :)

hope this helps
6 0
3 years ago
Please help
iren2701 [21]
For question 1:
1% = 120 ÷ 100 = 1.2
15% = 1.2 × 15 = 18
So, 15% of 120 is 18

For question 2:
68.4 ÷ 72 = 0.95
0.95 × 100 = 95%
So, the percentage is 95%

For question 3,
1% = 12.5 ÷ 8 = 1.5625
100% = 1.5625 × 100 = 156.25
So, 8% of 12.5 is 156.25.

For question 4,
1% = 48 ÷ 40 = 1.2
100% = 1.2 × 100 = 120
So, 40% of 48 is 120.

For question 5,
1% = 195 ÷ 100 = 1.95
62.5% = 1.95 × 62.5 = 121.875
So, 62.5% of 195 is 121.875
8 0
2 years ago
Which statement is true?
gayaneshka [121]

Answer:

Option: C is the correct answer.

C. Buying a needle and buying thread are dependent events.

Step-by-step explanation:

let A denotes the events of buying a thread.

and B denote the event of buying a needle.

Then A∩B denote the event of buying a needle and  a thread.

Also let P denote the probability of an event.

i.e. we are given:

P(A)=0.15

Also P(B|A)=0.25

As we know that:

P(B|A)=\dfrac{P(A\bigcap B)}{P(A)}\\\\i.e.\\\\0.25=\dfrac{P(A\bigcap B)}{0.15}\\\\i.e.\\\\P(A\bigcap B)=0.0375

As we know that when two events A and B are independent then,

P(A∩B)=∅

otherwise they are dependent events.

Hence, option: C is the correct answer.

6 0
3 years ago
Read 2 more answers
A total of 1482 earthquakes occurred in a 7-day period at the end of April
topjm [15]

Answer:

211.7 Per Day 8.8 Per Hour

Step-by-step explanation:

First you do 1482/7 which gives you an average for each day (211.7)

Then you take 211.7  and divide that by 24 because there are 24 hours in a day and doing so would give you 8.8

6 0
3 years ago
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