All categories

3 years ago

Hey can you please help me posted picture of question

Mathematics

2 answers:

pentagon [3]3 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]3 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

You might be interested in

Which algebraic expression means “four less than three times a number”?

Monica [59]

It’s 3n-4

I might be right or wrong

5 0

3 years ago

This probability distribution shows the typical grade distribution for a Geometry course with 35 students . A B С DF Grade Frequ

Nataly [62]

Answer:

$p=0.29$

Step-by-step explanation:

$Total ~ of ~students=35$

$Probability =10/35=0.29$

hope it helps....

have a great day!!

4 0

3 years ago

Read 2 more answers

Hi, does anyone know the answer to this question? I’m bad at geometry and I’m struggling to answer it.

arsen [322]

Answer:

QT = 16

Step-by-step explanation:

ΔQRS ~ ΔQRT

In similar triangles, corresponding angles are in same ratio.

$\frac{QS}{QR}=\frac{QR}{QT}\\\\\frac{25}{20}=\frac{20}{QT}$

Cross multiply,

QT * 25 = 20 * 20

$QT =\frac{20*20}{25}\\\\QT = 4*4\\\\QT = 16$

3 0

3 years ago

If EFH = (5x + 1)°, HFG = 62°, and EFG = (18x + 11)°, find EFH

olga55 [171]

Given:

Consider the below figure attached with this question.

∠EFH = (5x + 1)°, ∠HFG = 62°, and ∠EFG = (18x + 11)°

To find:

The measure of ∠EFH.

Solution:

From the figure it is clear that ∠EFG is divide in two parts ∠EFH and ∠HFG. So,

$\angle EFG=\angle EFH+\angle HFG$

$18x+11=(5x+1)+(62)$

$18x+11=5x+63$

Isolate variable terms.

$18x-5x=63-11$

$13x=52$

Divide both sides by 13.

$x=\dfrac{52}{13}$

$x=4$

The value of x is 4.

$\angle EFH=(5x+1)^\circ$

$\angle EFH=(5(4)+1)^\circ$

$\angle EFH=(20+1)^\circ$

$\angle EFH=21^\circ$

Therefore, the measure of ∠EFH is 21°.

8 0

3 years ago

Speed = distance divided by time taken. car 1 travels 10 miles every 5 minutes. car 2 travels 30 miles every 20 minutes. what is

Setler [38]

Car 1
2 miles............................1 minute
10 miles.........................5 minutes
20 miles.........................10 minutes
40 miles..........................20 minutes
car2
1.5 miles...........................1 minute
15miles.............................10 minutes
30 miles...........................20 minutes
the difference is 0.5 miles per minute

0.5*60=30 miles/hour

5 0

3 years ago