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3 years ago

Write (2 − 3i) − (-2 − 3i) as a complex number in standard form

1 answer:

5 0

(2 - 3i) - (-2 - 3i)
distribute the negative through the second set of parenthesis.
2 - 3i + 2 + 3i
Combine like terms; real part with real part and imaginary part with imaginary part.
4 + 0i

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Need help asap do tonight

aalyn [17]

Answer:

answer and explanation below

Step-by-step explanation:

2.m<x=75(angle on the same line so 180-105)

m<y=105 (vertical angles of the parallelogram are equal)

m<z=75 ( vertical angle of m<x)

3.M<y = 25 ( vertical angle property)

m<z=155( on the same line)

m<z and M,x =155( vertical angles )

8 0

3 years ago

The area of the Pacific Ocean is about 6.0061 x 107 square miles. The area of the Southern Ocean is about 7.8483 x 106 square mi

Scilla [17]

Answer:

A. 8

Step-by-step explanation:

6.0061 x 10^7

/ = 6/8 x 10^7/10^6

7.8483 x 10^6

0.75 x 10^7-6

0.75 x 10^1

A: 0.75 = 7.5 = 8.

5 0

3 years ago

163 A certain pet store has only cats and dogs. The ratio of the number of cats to the number of dogs in the pet store is 2:3. 1

rusak2 [61]

Answer:120 animals are in the pet store

Step-by-step explanation:

4 0

3 years ago

The largest orange in a bag has the circumference of 9 5/8 inches. The smallest orange has a circumference

Marysya12 [62]

Answer:

1.81 inches

Step-by-step explanation:

Given that,

The circumference of the largest orange in a bag is $9\dfrac{5}{8}\ \text{inches}$ and that of smallest orange is $7\dfrac{13}{16}\ \text{inches}$ .

Difference = largest orange - smallest orange

= $9\dfrac{5}{8}-7\dfrac{13}{16}\\\\=\dfrac{77}{8}-\dfrac{125}{16}\\\\=\dfrac{29}{16}\\\\=1.81\ \text{inches}$

So, difference of the circumferences of the smallest orange and the largest orange is 1.81 inches

4 0

3 years ago

PLEASE HELP For a particular transformer, the voltage E in the circuits is related to the number of windings W of wire around t

Masja [62]

Answer:

A voltage of 760V will be produced by 19 windings.

Step-by-step explanation:

Given the equation:

E = 40W

Where E is the Voltage in the circuits

and W is the number of windings

Given that E = 760V

To find: W = ?

Solution: Here, we have the given equation in 2 variables where value of 1 variable is given so other can be easily calculated by putting the value of given variable in the equation.

So, Putting the value of E in the given formula and finding W, the number of windings:

$760=40 \times W\\\Rightarrow W = \dfrac{760}{40}\\\Rightarrow W = \dfrac{76}{4}\\\Rightarrow W = 19$

So, number of windings for a voltage E = 760V is 19.

A voltage of 760V will be produced by 19 windings.

5 0

3 years ago