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ElenaW [278]
2 years ago
12

Which of these is a non-real complex number?

Mathematics
2 answers:
Dovator [93]2 years ago
8 0
Answer I think the answer is C
tresset_1 [31]2 years ago
8 0

Answer:

Answer D

Step-by-step explanation:

negative sign inside the sqare root is a complex num

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Help asap i will give brainliest;)
Murljashka [212]

Answer:

Simple the area is 88

Step-by-step explanation:

4 0
2 years ago
Mr. Sawyer drove his car from his home to New York at the rate of 45 mph and returned over the same road at the rate of 40 mph.
AveGali [126]

Answer: Time taken by him in going = 8 hours

Time taken by him in returning =  9 hours

Step-by-step explanation:

Let the total distance from home to New York is x miles,

\text{ Since, Time} = \frac{\text{Distance}}{\text{Speed}}

Also, he drove his car from his home to New York at the rate of 45 mph,

⇒ \text{ Time taken by him in going } = \frac{x}{45}\text{ hours}

And, returned over the same road at the rate of 40 mph.

⇒  \text{ Time taken by him in returning } = \frac{x}{40}\text{ hours}

According to the question,

Time taken by him in returning - Time taken by him in going = 30 minutes = 1/2 hours,    ( 1 hours = 60 minutes )

⇒ \frac{x}{40}-\frac{x}{45}=\frac{1}{2}

⇒ \frac{9x}{360}-\frac{8x}{360}=\frac{1}{2}

⇒ \frac{x}{360} = \farc{1}{2}

⇒ 2x=720

⇒ x=360\text{ miles}

Hence, the total distance from home to New York = x miles = 360 miles

⇒ \text{ Time taken by him in going } = \frac{x}{45}\text{ hours}

=\frac{360}{45}=8\text{ hours}

⇒  \text{ Time taken by him in returning } = \frac{x}{40}\text{ hours}

=\frac{360}{40}=9\text{ hours}

3 0
3 years ago
Read the question on the screenshot.
kondor19780726 [428]

Answer:

c: add x to each side

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Olympi
o-na [289]

Answer: he broke the record by 0.43 seconds

3 0
3 years ago
\frac{h^{2}-1 }{h+3} when h=5<br><br>Plz answer
Norma-Jean [14]

Answer:

3

Step-by-step explanation:

\frac{h^{2}-1 }{h+3}

\frac{5^{2} -1}{5+3}

\frac{25-1}{8}

\frac{24}{8}

3

4 0
2 years ago
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