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gulaghasi [49]
3 years ago
7

(1+i)(3-5i) equals what

Mathematics
1 answer:
grandymaker [24]3 years ago
3 0

Answer:

8-2i

Step-by-step explanation:

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Help me solve for the right triangle
AleksAgata [21]

Answers:

B = 50

a = 10.9

c = 17.0

================================================

Explanation:

This is a right triangle, so the acute angles are complementary, meaning they add to 90

B+40 = 90

B+40-40 = 90-40

B = 50

Also, because this is a right triangle, we can use trig ratios to compute the missing sides

tan(angle) = opposite/adjacent

tan(40) = a/13

a = 13*tan(40)

a = 10.908

a = 10.9

cos(angle) = adjacent/hypotenuse

cos(40) = 13/c

c*cos(40) = 13

c = 13/cos(40)

c = 17.0

note: make sure your calculator is in degree mode

7 0
3 years ago
A
snow_tiger [21]

Answer: 76

Step-by-step explanation:

47+3= 50

19+7=26

50+26=76

Where's the Bar Diagram?

Hope this Helps!

4 0
3 years ago
Use the figure at the right to complete each proportion.
vekshin1

Answer:

33) RQ

34) PQ

35) NO

36) MO

Step-by-step explanation:

4 0
3 years ago
What is the decimal for of -4 7/8?
asambeis [7]
-4 7/8 = -4.875 <====
3 0
3 years ago
3ax-n/5=-4 solve for x
jasenka [17]
3ax-\frac{n}{5}=-4\ \ \ |Add\ \frac{n}{5}\ to\ both\ sides\\\\&#10;3ax=-4+\frac{n}{5}\\\\&#10;3ax=-\frac{20}{5}+\frac{n}{5}\\\\&#10;3ax=\frac{-20+n}{5}\ \ \ |Divide\ by\ 3a\\\\&#10;x=\frac{-20+n}{5}*\frac{1}{3a}\\\\&#10;x=\frac{-20+n}{15a}\\\\Asnwer\ is\ x=\frac{-20+n}{15a}.
5 0
3 years ago
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