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2 years ago

Find all cube roots of -1000i

Mathematics

1 answer:

NemiM [27]2 years ago

3 0

Answer:

10i

Step-by-step explanation:

Since i^2 = -1, and 1000 = 10^3, we can instinctively guess that the answer is 10i. We can validate this by cubing it, yielding 1000i^3, or -1000i.

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The eight cats in a pet store were weighed. Their weights (in pounds) are given below.

luda_lava [24]

Hey there! :)

First, let's find the mode

Mode is the number that appears the most

The mode is 7
_____________________________________________________________

Range is the difference between the greatest number and the lowest number.

Greatest number: 7
Lowest number: 2

7 - 2 = 5

The range is 5

Hope this helps :)

4 0

4 years ago

Read 2 more answers

Help me please Picture at the below

astra-53 [7]

a=-2, b=3, c=-4, d=5

abc-d

abc means multiply those 3 together

so -2 x 3 x -4 = 24

24-5 = 19

answer is 19

4 0

3 years ago

Whats 27 x 300 / 34 x 6

Angelina_Jolie [31]

Answer:

Use Calculator:

Approximately. 1429.411

Step-by-step explanation:

Hope it Helps!!!

7 0

2 years ago

Equivalent measures for 8 fl oz are ?

Gala2k [10]

If you are looking for gallons then its 0.0625

4 0

4 years ago

Check out attachment:) I don't understand how do you find out the length ?? pls help with explanation thx

hjlf

Answer:

x=3.89

Step-by-step explanation:

I'll go in depth for you.

Before we figure out what we do, let understand what we know about this triangle.

We know that both triangles have a angle that measure 27°.
We also know EH=5
FG=9
ZG=7
We need to know how to find EZ

Notice how line EG and HF intersect at Angle Z. We know that if two lines intersect at an angle, it form angles called vertical angles. This means that the two angles that are vertical to each other are congruent.

This means that angle Z in both triangles both measure the same.

Now since both triangles have 2 congruent corresponding angles, we can say that the Triangles are Similar due to the Angle-Angle Postulate.

"If two corresponding angles of two triangles are congruent, then the two triangles are similar."

What is mean when Triangles are similar? 

It means that the similar triangles corresponding angles are equal and their sides are in proportion.

The corresponding sides are 

EH and GF

EZ and ZG

HZ and HF.

Our proportion formula for similar triangles is 

Any two sides of the first triangle divided by each other must equal the two corresponding sides of the second triangles divided by each other respectively.

We know FG and ZG so let set up our first fraction

 $\frac{fg}{zg}$ 

The corresponding sides of both are 

EH and EZ respectively so our proportion looks like
 $\frac{fg}{zg} = \frac{eh}{ez}$ 
Plug in the values for each. Let x represent the value of EZ
 $\frac{9}{7} = \frac{5}{x}$ 
Cross Multiply
 $9x = 35$ 
 $x = 3 \frac{8}{9} = 3.89$ 
So x=3.89

3 0

3 years ago