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Slav-nsk [51]
3 years ago
7

Please help me out and explain it to me​

Mathematics
1 answer:
Grace [21]3 years ago
6 0

Answer:

Answer is option d 14+18i

Step-by-step explanation:

given \: expression \: is \\ (5 + 12i) - (9 {i}^{2}  - 6i)  \:  \:  \: where \: i =  \sqrt{ - 1}  \:  \:  \\  = 5 + 12i - 9 {i }^{2}  + 6i \\  = 18i + 5 - 9( - 1) \\ 18i + 5 + 9 \\  = 18i + 14

<em>HAVE A NICE DAY</em><em>!</em>

<em>THANKS FOR GIVING ME THE OPPORTUNITY</em><em> </em><em>TO ANSWER YOUR QUESTION</em><em>. </em>

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Each day the sharks at an aquarium are each fed 12 pounds of fish for every 100 pounds of their body weight. If a shark at the a
Vitek1552 [10]

Answer:

40.8 lbs

Step-by-step explanation:

First find how many 100 pounds are in the 340 lbs shark.

340/100=3.4

The sharks are fed 12 lbs of fish for every 100 pounds of shark.

There are 3.4 hundred pounds in this shark.

3.4*12=40.8; 40.8 lbs

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3 years ago
What is the thirteenth number in the Fibonacci sequence
artcher [175]

Answer:

The 13th number in the Fibonacci sequence is 144.

Step-by-step explanation:

The sequence from the first to the 13th number is: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144.

8 0
3 years ago
5(1 + 4m) – 2m = -13
Oksana_A [137]

Answer and Step-by-step explanation:

Solve for m.

<u>First, distribute the 5.</u>

5 + 20m - 2m = -13

<u>Combine like terms.</u>

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18m = -18

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<u>m = -1 <- This is the answer.</u>

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3 years ago
Read 2 more answers
Please answer correctly thanks
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The area of any rectangle is the product of its length and its width - A=lw. We've been given the area and the length, and we can use those values to solve for the width:

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3 0
3 years ago
A controlled satellite is known to have an error (distance from target) that is normally distributed with mean zero and standard
slamgirl [31]

Answer:

the probability that the satellite fails is 0.0124

Step-by-step explanation:

The manufacturer of the satellite defines a success as a firing in which the satellite comes within 10 feet of the target.

This means that success has the \frac{10}{4}=2.5 standard deviations range in the error distribution.

Z-scores of the Ranges not within -2.5 and 2.5 can be considered as fail and the probability of this is:

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4 0
4 years ago
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