3 years ago

Perform the operation and get

Mathematics

1 answer:

Alexandra [31]3 years ago

8 0

Answer:

Step-by-step explanation:

(5-2i) ( 5+2i) = (5^2) - ((2i)^2) = 25 - 4i^2

= 25 - 4(-1) = 25 +4 = 29 + 0i

You might be interested in

The ratio of the number of girls to the number of boys in choir is 4 to 5. There are 32 girls in the choir. How many boys are in

TEA [102]

Answer:

what grade is this

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

There are 90 apples shared equally among 6 baskets. Hun buys 1 basket of apples. He uses the apples to make 3 pies. Each pie has

tamaranim1 [39]

Answer:

To find the number of apples per basket we divide 90 by 6 to get 15. We know that he buys 15 apples. We now have to divide by 3 to get the number of apples per pie, because we know he used all 15 apples. The answer is 15/3 or 5 apples per pie. 5 apples

6 0

3 years ago

Read 2 more answers

Your parents car initially costs $18,000 and it depreciates at a rate of 12% a year. How much will the car be worth after 5 year

coldgirl [10]

Answer:

Step-by-step explanation:

value after five years = $18,000×(1-0.12)⁵ = 18,000×0.88⁵ = $9,499.17

:::::

The value drops below $2,000 in the 17th year.

7 0

3 years ago

A department store buys 500 shirts at a cost of $4000 and sells them at a selling price of $10 each. Find the percent markup.

mart [117]

Answer:

25%

Step-by-step explanation:

to find the original cost of a single shirt:

4000 / 500 = $8

how much did they markup:

10 - 8 = 2

percent markup:

2/8 = 0.25 x 100 = 25%

5 0

3 years ago

I need help help me and no links

steposvetlana [31]

Answer:

Step-by-step explanation:

7 0

2 years ago