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3 years ago

How to do Imaginary number

Mathematics

1 answer:

schepotkina [342]3 years ago

7 0

Here’s the chart or I think you can plug it into ur calculator. Also if it’s imaginary then there’s no real solutions

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Answer to F=1/R+r if soving for r?

kumpel [21]

Answer:

FR = r

Step-by-step explanation:

F = 1/R + r

In order to move R you need to multiply by R/1 to both sides

FR/1 = r

Hope this helps!

3 0

3 years ago

The surface area of a cube is 24 cm² what is the new surface area of a cube is the length of each edge of the cube is tripled

sergij07 [2.7K]

24 divided by 6( the amount of sides) is 4. The square root of 4 is 2 so each side is 2 cm. 2 cm tripled is 6 cm. 6 times 6 is 36 ( that is the surface area of one face). 36 times 6 (the number of faces) is 216 so the answer is 216 cm squared.

8 0

3 years ago

The sales tax on a sofa that cost $575 was $43.13. What was the percent sales tax?

babunello [35]

It is important to look at all details given in the question very carefully.
Amount of sales tax taken on the sofa = $43.13
Actual cost of the sofa = $575
Let us assume the percentage of sales tax taken = x%
Then
(x/100) * 575 = 43.13
5.75x = 43.13
x = 43.13/5.75
= 7.50 percent
So the percentage of sales tax charged for the sofa was 7.50%.I hope the procedure is clear enough for you to understand. Based on this procedure, similar problems can be done with absolute ease.

3 0

3 years ago

Read 2 more answers

An experiment consists of spinning the spinners shown and adding the numbers together. Complete the array.

Aleksandr [31]

Answer:

$\begin{array}{ccccc}{} & {1} & {2} & {3} & {4} & {1} & {2} & {3} & {4} & {5} & {2} & {3} & {4} & {5} & {6} & {3} & {4} & {5} & {6} & {7} & {4} & {5} & {6} & {6} & {8} \ \end{array}$

Step-by-step explanation:

Given

$Spinner = \{1,2,3,4\}$

Array:

$\begin{array}{ccccc}{} & {1} & {2} & {3} & {4} & {1} & {} & { } & { } & {5} & {2} & { } & {} & { } & { } & {3} & {4} & { } & {} & { } & {4} & { } & {6} & { } & {} \ \end{array}$

Required

Complete the blanks

To do this, we simply add up corresponding row and column elements.

$\begin{array}{ccccc}{} & {1} & {2} & {3} & {4} & {1} & {} & { } & { } & {5} & {2} & { } & {} & { } & { } & {3} & {4} & { } & {} & { } & {4} & { } & {6} & { } & {} \ \end{array}$

So, we have:

$\begin{array}{ccccc}{} & {1} & {2} & {3} & {4} & {1} & {1+1} & {1+2 } & {1+3 } & {4} & {2} & {2+1 } & {2+2} & {2+3 } & {2+4 } & {3} & {4} & {3+2 } & {3+3} & {3+4 } & {4} & {4+1 } & {6} & {4+3 } & {4+4} \ \end{array}$

Add

$\begin{array}{ccccc}{} & {1} & {2} & {3} & {4} & {1} & {2} & {3} & {4} & {5} & {2} & {3} & {4} & {5} & {6} & {3} & {4} & {5} & {6} & {7} & {4} & {5} & {6} & {6} & {8} \ \end{array}$

7 0

3 years ago

What is the nth term of 4,9,16,25,36

konstantin123 [22]

Answer:

(n + 1)²

Step-by-step explanation:

note that 4, 9, 16, 25, 36 are square numbers

To generate the terms add 1 to the position n and square, that is

first term : n = 1 → n = 1 + 1 → 2² = 4

second term : n = 2 → n = 2 + 1 → 3² = 9

third term : n = 3 → n = 3 + 1 → 4² = 16

Hence n th term is (n + 1)²

4 0

3 years ago