3 years ago

HELP PLEASE which is equivalent to (3 + i)(4+2i)

Mathematics

1 answer:

nasty-shy [4]3 years ago

5 0

Answer:

10 + 10 i

so a the 1 one

Step-by-step explanation:

You might be interested in

Which expression to 27 + 25

irga5000 [103]

That is an hard question tell you mom or dad or sis or bro or try hard

6 0

3 years ago

Catherine walks her dog 3/4 mile every day. how far does she walk each week

Rufina [12.5K]

Since a week is 7 days you have to multuply 7*3/4
Turn 7 into a fraction
$\frac{3}{4} \times \frac{7}{1} = \frac{21}{4} = 5 \frac{1}{4}$

7 0

4 years ago

Read 2 more answers

6v+13b=377<br> 4v+9b=259

aleksandr82 [10.1K]

Answer:

v = 13

b = 23

Step-by-step explanation:

To solve this system of equations, we can negate one equation and add it to other to cancel out one variable.

Looking at v and b, the coefficients are 6, 4 and 13, 9, respectively.

It would be easier to use the LCM of 6 and 4

$E_1 : 6v + 13b = 377\\E_2: 4v + 9b = 259\\\\4E_1 + (- 6)E_2:\\24v + 52b = 1508\\-24v - 54b=-1554\\\\0v -2b = -46\\-2b = -46\\b = 23\\\\4v + 9(23) = 259\\4v + 207 = 259\\4v = 52\\v = 13\\\\6(13) + 13(23)\\78 + 299\\377$

6 0

3 years ago

PLZZZ HELP!!!!!!!!!!

olga2289 [7]

Answer:

19.65°

Step-by-step explanation:

Use tan when you don't have the hypotenuse.

tan(y) = opposite/adjacent

tan(y) = 5/14

y = (tan^-1)(5/14)

y = 19.65°

6 0

4 years ago

I need help! what's 2+2=????

strojnjashka [21]

Answer:

Step-by-step explanation:

4 0

3 years ago