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Marysya12 [62]
3 years ago
6

Simplify (8 + 20i ) + (-17+4i)

Mathematics
2 answers:
Kitty [74]3 years ago
8 0

Answer: -9 + 24i

Step-by-step explanation:

vitfil [10]3 years ago
3 0

Answer:

20i+4i =16i-19

Step-by-step explanation:

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From the set of 5, 6, 38 use substitution to determine which value of x makes the equation true.
Vika [28.1K]

Answer:5

Step-by-step explanation:33 + 5 =38 * 6= 228

6 0
3 years ago
At a resting pulse rate of 75 beats per minute, the human heart typically pumps about 73 mL of blood per beat. Blood has a densi
Kaylis [27]

Answer:

There is approximately 5.475 liters of blood in the body.

Step-by-step explanation:

At a resting pulse rate of 75 beats per minute, the human heart typically pumps about 73 ml of blood per beat.

73 ml in liters = 73\times0.001=0.073 liters

Now, 75 beats/min x  0.073 liters/beat  = 5.475 liters/min

And 5.475 liters/min x 1 min/body = 5.475 liters/body

Hence, there is approximately 5.475 liters of blood in the body.

7 0
3 years ago
Whoever gets this answered will get 15 points. Pls answer quickly
mihalych1998 [28]

Answer:

76%

Step-by-step explanation:

First parts right

75.7% i think maybe

8 0
3 years ago
Of the last 500 customers entering a supermarket, 50 have purchased a wireless phone. If the relative frequency approach for ass
Inessa05 [86]

Answer:

The probability that the next customer will purchase a wireless phone is 0.1

Step-by-step explanation:

The relative frequency approach states<em> how often something happens divided by all outcomes</em>.

In the example some of the customers entering a supermarket purchased a wireless phone.  

Here all outcomes are 500 customer entering supermarket. And among these outcome purchasing wireless phone happened 50 times.

Then the probability that the next customer will purchase a wireless phone is

\frac{50}{500}.

If we divide both sides by 50, we get \frac{1}{10}=0.1

3 0
3 years ago
A cell phone costs 120 dollars. The price reduced 30% for a sale. How much is the savings
Licemer1 [7]

Answer:

You save 36 dollars.

Step-by-step explanation:

30% of 120 is 36.

You spend $84

5 0
2 years ago
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