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ipn [44]
3 years ago
6

(−3 + 8i)(−3 − 8i) =

Mathematics
1 answer:
Mice21 [21]3 years ago
8 0

Answer: 73

Step-by-step explanation:  

Multiply using the FOIL method, then combine the real and imaginary parts of the expression.

73

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Madison spent 3 times as long on her social project as she did on her other project. If she spent a total of 8 hours on he proje
deff fn [24]

Answer:

6 hours

Step-by-step explanation:

Suppose Madison spent x hours on her social project,

then the number of hours spent on other project will be 1/3 of x=x/3

Total hours spend on all projects will be the addition of hours spent on social project and hour spent on other project, i.e

x + x/3 = 4x/3

It si given that this is 8 hours, therefore

4x/3=8

Multiplying both sides by 3:

4x=24

Dividing across board by 4:

x= 6 hours

5 0
3 years ago
in a church, the ratio of adults to children is 6 to 11. if there are 306 people in the church, how many children are there?
serg [7]

Answer:

198

Step-by-step explanation:

If the ratio of adults to children is 6:11, then 6/17 of the people are adults and 11/17 of the people are children.

11/17 × 306 = 198

There are 198 children.

7 0
3 years ago
What is the slope of the line that passes through the points (-4,8) and (-14.8)?
bonufazy [111]

Answer:

your answer is 0 because it's a horizontal line

3 0
3 years ago
If a and b are odd integers, then a + b is an even integer. Which shows the hypothesis?
GenaCL600 [577]
D) a and b are not odd integers
3 0
3 years ago
Read 2 more answers
write 3450 in scientific notation form. b) write 234 x 10^16 in standard form. c) Population of kuwait is 2.4million. It is 4/5
marusya05 [52]

Answer:

a; 3.45 * 10^3

b) 2.34 * 10^18

c) 80%

Step-by-step explanation:

a) 3450 in standard form

To write in standard form, we have to place a decimal at the back of the first non-zero number

we have this as ;

3.450

The count of numbers after the decimal point is 3

This will be the power to which 10 will be raised

We have this as;

3.45 * 10^3

b) 234 * 10^16

Let us write 234 in standard form

That will be;

234 = 2.34 * 10^2

So we have ;

2.34 * 10^2 * 10^16

Using the law of indices, we have;

2.34 * 10^(2 + 16) = 2.34 * 10^18

c) From the question, Kuwait is 4/5 of Hong kong’s population

Let Honk Kong’s population be x

4/5 * x = 2.4 million

4x = 5 * 2.4 million

x = 5 * 2.4/4

x = 5 * 0.6

x = 3 million

so writing the population of Kuwait as a percentage of that of Hong kong, we have

2.4/3 * 100%

= 0.8 * 100% = 80%

4 0
2 years ago
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