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3 years ago

Is the following statement always, never, or sometimes true?

2 answers:

7 0

We are given the following statement; A number raised to a negative exponent is negative. We can go through experimental points. In this case, when the number is positive, the result is also positive. If the number is negative, we can say the result is negative.

pickupchik [31]3 years ago

3 0

Sometimes...

2^-3 = 1/(2^3) = 1/8

-2^-3 = 1/(-2^3) = -1/8

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How you do multiply complex numbers ? Example : (9 - 4i) (8 + 6i)

Andrew [12]

You multiply them just as you would multiply any normal polynomials, except there is a special rule. Since we know that i = √-1, the rule is that i² = -1. So, let's multiply:

$(9-4i)(8+6i) = 72+54i-32i-24i^2$

Let's simplify this:

$72+22i+(-24*-1)$

$72+22i+24 = 96+22i$

Therefore, your answer is 96 + 22i.

6 0

3 years ago

Jane earns a 5.5% commission on the selling price of each home she sells. She earned $9,020 in commission on the sale of a home.

ratelena [41]

Answer:

"$164000" is the appropriate answer.

Step-by-step explanation:

Let the selling price be "s".

As per the question,

If Jane take 5.5% of selling price i.e.,

= $0.055\times s$

Given commission,

= $9,020

then,

The selling price will be:

⇒ $0.055\times s=9020$

$s=\frac{9020}{0.055}$

$=164000$ ($)

6 0

3 years ago

PLEASE HELPPPPPPpppppppppppppppppppppp

Usimov [2.4K]

Its 4 by the way cause it is

6 0

3 years ago

Evan’s family drove to a theme park for vacation.

zhuklara [117]

Answer:

They drove 150 miles on the third day

They drove 50 miles per hour so if you multiply that by 3 (since they drove 3 hours on the third day) you would get 150 miles.

5 0

3 years ago

A ladder is 6 m long.

IRISSAK [1]

Answer:

5.8 m

Step-by-step explanation:

Using the Pythagorean Theorem (a² + b² = c²) you get the equation a² + 1.5² = 6² (or 1.5² + b² = 6²). Then you solve from there and rounding to the first decimal place you get 5.8

8 0

3 years ago