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3 years ago

Which expession is equal to 2 −28 − − − − √ 2−28 ? 4 7i − − √ 47i 4i 7 √ 4i7 −4 7 √ −47 −4i 7 √

2 answers:

7 0

Do problems 1-4, 11, 12 from appendix G in the book (page A47). ... Solution. 8 − 4i. (2.) (4 − 1. 2i) − (9 + 5. 2 i). Solution. −5 − 3i. (3.) (2 + 5i)(4 − i) ... Solution. 1, i, −1, and −i. 4. Write the product (. √3. 2. + 1. 2 i)(1. 2. +. √3. 2 ... (7.) 1+4i. 3+2i. Solution. 1+4i. 3+2i. = 1+4i. 3+2i · 3−2i. 3−2i. = 3−2i+12i−8i2 ..... i)8 = 28e8· 5π. 6.

bogdanovich [222]3 years ago

7 0

Just did the quiz, the answer is 4i√7

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Rectangle

eduard

Options A and D are correct. The pair of measurements that could be the dimensions of rectangle B is 6 cm by 1.5 cm and 18 cm by 4.5 cm.

For us to get a scale copy of the dimension, we need to first find the scale factor as shown;

Given the measure of rectangle A:

Length= 12cm

Width = 3cm

To get all of the measurement pairs that could be the dimensions of Rectangle B, we need to multiply the length and width by the same factor

Multiplying by 1/2

New length = 12 × 0.5 = 6cm

New width = 3 × 0.5 = 1.5cm

Hence 6cm by 1.5cm can be dimension of B

Multiplying by 1.5

New length = 12 × 1.5 = 18cm

New width = 3 × 1.5 = 4.5cm

Hence 18cm by 4.5cm can be dimension of B

Learn more here: brainly.com/question/24759485

5 0

3 years ago

On a scale drawing, which of the following has a scale of 1:6?

Alexandra [31]

The answer would be D, 2 cm represents 12 cm. 2/12=1/6

3 0

3 years ago

Read 2 more answers

The number 64 has the property that it is divisible by its units digit. How many whole numbers between 10 and 50 have this prope

sineoko [7]

Answer:

$\large \boxed{17}$

Step-by-step explanation:

Let's call the numbers "tu", where t is the tens digit and u is the units digit.

We can solve this by the "brute force" method — examining each number to see if it satisfies the conditions.

$\begin{array}{cccl}\mathbf{u}&\mathbf{tu}& \textbf{Divisible by u} & \\0 &20, 30, 40 & 0 & \text{Division by zero is impossible}\\1 & 11, 21, 31, 41 & 4& \text{All numbers are divisible by one}\\2 & 12, 22, 32, 42 & 4 & \text{All even numbers are divisible by two}\\3 & 13, 23, 33, 43 & 1 &\text{Only 33 is divisible by three}\\4 & 14, 24, 34, 44 & 2 & \text{Only 24 and 44 are divisible by four}\\5 & 15, 25, 35, 45 & 4 & \text{Numbers ending in 5 are divisible by five}\\\end{array}$

$\begin{array}{cccl}6 & 16, 26, 36, 46 & 1 & \text{Only 36 is divisible by six}\\7 & 17, 27, 37, 47 & 0 & \text{None of the numbers is divisible by seven}\\8 & 18, 28, 38, 48 & 1 & \text{Only 48 is divisible by eight}\\9 & 19, 29, 39, 49 & 0 & \text{None of the numbers is divisible by nine}\\& \textbf{TOTAL =} &\mathbf{17}& \\\end{array}\\\text{$\large \boxed{\mathbf{17}}$ numbers between 10 and 50 are divisible by their units digit}$

5 0

3 years ago

Past experience at the Pasadena Travel Agency indicated that 44% of those persons who wanted the agency to plan a vacation for t

kap26 [50]

Answer: Yes. There there been a significant shift upward in the percentage of persons who want to go to Asia.

Step-by-step explanation:

From the information given in the question, past experience at the Pasadena Travel Agency shows that 44% of people who came to plan a vacation with the agency wanted to go to Asia.

During the most recent busy season, a sampling of 1,000 plans was selected at random from the files. It was found that 480 persons wanted to go to Asia on vacation. The percentage of people who want to go to Asia now will be:

= 480/1000 × 100

= 48%

Therefore, there has been a significant shift upward in the percentage of persons who want to go to Asia.

8 0

3 years ago

Cameron buys 2.45 pounds of apples and 1.65 pounds of pears. Apples and pears each cost c dollars per pound. If the total cost a

nordsb [41]

Answer:

$4.12=2.45c+1.65c$