Solve q=r/2 (s+t) for t

Check each true statement about the number 7- square root 3i

kumpel [21]

Answer:

option-A

option-D

Step-by-step explanation:

We are given a complex number as

$7-\sqrt{3}i$

we know that whenever we have

$a+bi$

where

a is the real number

b is imaginary number

now, we can verify each statement

option-A:

we can see that

a=7

and

a is the real number

so, 7 will be real number

so, this is TRUE

option-B:

we know that

$b=-\sqrt{3}$

so, imaginary number is $-\sqrt{3}$

while it is mentioned square root 3 is the imaginary part of the number

so, this is FALSE

option-C:

We can see that coefficient of i is b

and

$b=-\sqrt{3}$

so, this is FALSE

option-D:

we know that

'a' and 'b' are sum of real and imaginary number

so, this is TRUE

8 0

3 years ago

Read 2 more answers

How to use parentheses and multiplication properties.

Mkey [24]

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These are the concepts where you could use for the parentheses

7 0

3 years ago

Read 2 more answers

Need help on this question.

trapecia [35]

The answer is angles :)

6 0

3 years ago

It would be too much to write so here is a photo instead :D

lions [1.4K]

Answer:

C) Justine left her grandmother's house and walked 3 blocks directly south. Then she walked 3 blocks directly north. At this point, how many blocks was Justine from her grandmother's house?

Explanation:

C is the only answer choice where you are starting at 0. Justine goes down 3 blocks and comes back up 3 blocks getting her back to 0.

Answer choice A goes from -10 to 10.

Answer choice B goes from -16 to 16.

Answer choice D goes from 10 to -10.

3 0

3 years ago

WVTU is a television station that has 20 thirty-second advertising slots during their regularly scheduled programming each eveni

Colt1911 [192]

Answer:

a. $90,000

b. 15 advertisement slots

c. 0.53

Step-by-step explanation:

Let the purchase price of the slots, c = 4,500

The salvage value of the slots, s = 2,000

The selling price of the slots, p = 8,000

a. If the store manager sells all the advertising slots in advance, the revenue received, 'R', is given as follows;

R = The number of slots, n × The purchase price for selling immediately, c

∴ R = 20 × $4,500 = $90,000

The revenue the station will receive by selling all the advertising slots in advance, R = $90,000

b. The Cost of Overage, $C_o$ = Purchase price - Salvage value

∴ The Cost of Overage, $C_o$ = 4,500 - 2,000 = 2,500

The Cost of Underage, $C_u$ = Selling price - Purchase price

∴ The Cost of Underage, $C_u$ = 8,000 - 4,500 = 3,500

P; 0.03, 0.05, 0.1, 0.15, 0.2, 0.15, 0.1, 0.05, 0.05, 0.05, 0.05, 0.02

With help of MS Excel, we get the following cumulative frequency

F(Q); 0.03, 0.08, 0.18, 0.33, 0.53, 0.68, 0.78, 0.83, 0.88, 0.93, 0.98, 1

The expected monetary value for the decision to sell the 8th slot at the last minute is given by the following relation;

$C_u$ × [1 - F(Q)] - $C_o$ × F(Q)

Where F(Q) = The cumulative frequency for the 8th stock

Therefore, we have;

3,500 × (1 - 0.03) - 2,500 × 0.03 = 3,300

For the 8th slot, the TV station is expected to make an extra $3,300

Using MS Excel, we get;

For the 9th slot, the profit over the purchase price = $3,020

Fot the 10th slot, the profit over the purchase price = $2,420

The profit over the purchase price for the 11th slot = $1,520

The profit over the purchase price for the 12th slot = $320

The profit over the purchase price for the 13th slot = $(-580)

The 14th = $(-1,180)

15th = $(-1,480)

16th = $(-1,780)

17th = $(-2,080)

18th = $(-2,380)

19th = $(-2,500)

Therefore, to maximize profit, only the 8th, 9th, 10th, 11th, and 12th, slots which are 5 slots should be sold late while 20 - 5 = 15 slots should be sold in advance

c. The probability that the total revenue will exceed the identified amount in part 'a' is the cumulative probability at the 12th slot which is given as follows;

P(D ≤ 12) = F(12) = 0.53.

3 0

3 years ago