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2 years ago

Hey can you please help me posted picture of question

Mathematics

2 answers:

pentagon [3]2 years ago

6 0

To add or subtract two complex numbers, the real part is added or subtracted from real part and the complex part is added to or subtracted from complex part as shown below:

(11 - 7i) - (16 - 11i)

= 11 - 7i - 16 + 11i

= -5 + 4i

So, the answer to this question is option B

Romashka [77]2 years ago

5 0

To solve this problem you must apply the proccedure shown below:

1. You have the following expression:

(11-7i)-(16-11i)

2. If you want to substract both terms, you obtain:

11-7i-16+11i
(11-16)+(-7+11)

3. Then, you obtain the following result:

-5+4i

4. Therefore, as you can see, the correct answer is the second option (option B), which is:

B. -5+4i

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What is the next term of the geometric sequence?<br> 40/27, 20/9, 10/3

ss7ja [257]

Answer:

Step-by-step explanation:

5/1

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3 years ago

What is the midpoint between (3, -1) and (7, -5)?<br> Group of answer choices

Hatshy [7]

Answer:

The answer is

Step-by-step explanation:

The midpoint M of two endpoints of a line segment can be found by using the formula

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

(3, -1) and (7, -5)

The midpoint is

$M = ( \frac{3 + 7}{2} , \: \frac{ - 1 - 5}{2} ) \\ = ( \frac{10}{2} \: , \: - \frac{6}{2} )$

We have the final answer as

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6 0

3 years ago

On Monday, during a one day sale, the price of a suit was decreased by 20%. On Tuesday, the price of the suit was changed back t

nignag [31]

Answer:

25%

Step-by-step explanation:

If we consider the original price of the piece of suit is x.

Given that, on Monday during a one day sale, the price of the suit was decreased by 20%.

Therefore, the new price of the suit on Monday is $x( 1 - \frac{20}{100}) = 0.8x$ .

Now, the price of the suit on Tuesday was changed back to the original price i.e. x.

Therefore, the price is increase by (x - 0.8x) = 0.2x from the price of 0.8x.

So, the percentage change in price of the suit on Tuesday is $\frac{0.2x}{0.8x} \times 100 = 25$ %. (Answer)

8 0

2 years ago

What is the measure of the missing angle

Gre4nikov [31]

Answer:

115°

Step-by-step explanation:

<u>Exterior Angle Theorem</u> states that the sum of the two remote angles in a triangle is equal to the exterior angle.

Thus, 75 + 40 = 115°.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

~ ren ⚘

4 0

1 year ago

A principal of $3600 is invested at 7.5% interest, compounded annually. How much will the investment be worth after 6 years?

zaharov [31]

After 6 years the investment is $5555.88

Step-by-step explanation:

A principal of $3600 is invested at 7.5% interest, compounded annually. How much will the investment be worth after 6 years?

The formula used to find future value is:

$A(t)=P(1+\frac{r}{n})^{nt}$

where A(t) = Accumulated amount

P = Principal Amount

r = annual rate

t= time

n= compounding periods per year

We are given:

P = $3600

r = 7.5 %

t = 6

n = 1

Putting values in formula:

$A(t)=P(1+\frac{r}{n})^{nt}\\A(t)=3600(1+\frac{0.075}{1})^{6*1}\\A(t)=3600(\frac{1.075}{1})^6\\A(t)=3600(1.075)^6\\A(t)=3600(1.543)\\A(t)=5555.88$

So, After 6 years the investment is $5555.88

Keywords: Compound Interest formula

Learn more about Compound Interest formula at:

#learnwithBrainly

8 0

3 years ago