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Debora [2.8K]
3 years ago
14

What is the value of the square of i?

Mathematics
1 answer:
soldier1979 [14.2K]3 years ago
5 0
As you know, i is the √-1. You also know that (√x)² = x. 
So, (√-1)² = -1.
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Jimmy is buying 2 pairs of pants that cost $14.50 each. There is a 7.5% sales tax What is the total Jimmy will pay for the pants
dangina [55]

Answer:

$31.18

Step-by-step explanation:

14.50 x 2 = 29

29 x 0.075 = 2.175

29 + 2.175 = 31.175

Round up to 31.18

5 0
3 years ago
What is 10.417 rounded to the nearest hundredth?
Zarrin [17]
10.417 rounded to the nearest hundredth is 10.42

Hope it helps!

7 0
4 years ago
The USA Today reports that the average expenditure on Valentine's Day is $100.89. Do male and female consumers differ in the amo
sergeinik [125]

Answer: $ 67.03

Step-by-step explanation:

Given : The average expenditure in a sample survey of 50 male consumers was $135.67, and the average expenditure in a sample survey of 38 female consumers was $68.64.

i.e. \overline{x}_1=\$135.67\ \ \&\ \ \overline{x}_2=\$68.64

The best point estimate of the difference between the two population means is given by :-

\overline{x}_1-\overline{x}_2\\\\=135.67-68.64=67.03

Hence, the point estimate of the difference between the population mean expenditure for males and the population mean expenditure for females : $ 67.03

7 0
3 years ago
I need this done urgently!
wolverine [178]

Answer:

1)65.9

2)326.6

3)13.6

4)8.0

Step-by-step explanation:

The trick is always to look at the number after the first decimal for rounding to 1 decimal place, if its above 5, you round it up to the next decimal; eg. 13.45 = 13.5 because the 5 will round it up,and if value below 5, you round it down; eg. 12.34 = 12.3 because the 4 is below 5 and the nearest 10th decimal is 3.

6 0
2 years ago
Read 2 more answers
Please help i will give out brainliest
enot [183]

Answer:

A

Step-by-step explanation:

To determine if a point lies on the curve, substitute the x- coordinate into the equation. If the value obtained is equal to the y- coordinate then the point lies on the curve, that is

A

y = (\frac{3}{2} )² = \frac{9}{4} ≠ \frac{9}{2} ← not on line

B

y = (- 1)² = 1 ← lies on line

C

y = 4² = 16 ← lies on line

D

y = (\frac{1}{2} )² = \frac{1}{4} ← lies on line

7 0
3 years ago
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