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4 years ago

The expression 3i is equivalent to 3 explain why or why not?

1 answer:

6 0

3i is not equivalent to 3 because i is representative for the square root of -1. In reality it is 3(square root of -1) and 3 .

You might be interested in

Write a definition of rounding in your own words

topjm [15]

Increasing or decreasing a number to the nearest integer.
for example, 3.7 rounds up to 4.

8 0

4 years ago

What is the final net price of a designer swimsuit, originally priced at $85, when the Fall discounts are 25/60 (hint: Find the

WINSTONCH [101]

Answer:

The final net price of a designer swimsuit is $\$49.58$

Step-by-step explanation:

Let

x-----> the final net price of a designer swimsuit

we know that

$x=\$85[1-\frac{25}{60}]$

$x=\$85[\frac{35}{60}]$

$x=\$49.58$

4 0

4 years ago

Radius of the circle is 20cm. there are two chords of lengths.

Vaselesa [24]

9514 1404 393

Answer:

12 cm

Step-by-step explanation:

The distance to the chord is the median of an isosceles right triangle with hypotenuse 20 and leg 16. This 5:4 ratio suggests the other leg of that right triangle would make the ratios 3 : 4 : 5, so is 12.

The chords are 12 cm from the center.

_____

You can, of course, use the Pythagorean theorem. If c is half the chord length and d is the distance to the chord, you have ...

c² + d² = r²

16² + d² = 20²

d² = 400 -256 = 144

d = √144 = 12 . . . . . cm

4 0

3 years ago

How do I Graph 2y=-8

qwelly [4]

Answer: (0,-4)
You solve this with inverseoperations

3 0

3 years ago

Ming has a goal to jog 4 1/2 mile each day. On Monday she jogged 5 9/16 miles. By how much did she exceed her goal for that day?

Darya [45]

5 9/16 - 4 1/2= 1 1/16

I got this because you have make the fractions denomenators equal to subtract them. Once you find how to make them equal you need to mutiply the top numbers the same as the bottom so you can make the new fractions that are equal to the ones before. Then you subtract them and the wholes as well. LOOK BELOW.....

9 x1 9

_ = _

16 x1 16

1 x8 8

_ = _

2 x8 16

9/16-8/16= 1/16 of extra miles

5-4=1 of extra miles

1 and 1/16 of extra miles on monday

5 0

3 years ago