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34kurt
3 years ago
9

Help me on all these questions (picture added)

Mathematics
1 answer:
Alchen [17]3 years ago
8 0
7. -9
8. -10
9. -60
10. -70
11. 300
12. -145
13. -1650
14. -1000
You might be interested in
What is the quotient of these complex numbers?<br><br> (8-6i)/(3-i)
Aleks04 [339]

Answer: z = 6i / (4+3i)

Step-by-step explanation: Rectangular form:

z = 0.72+0.96i

Angle notation (phasor):

z = 1.2 ∠ 53°7'48″

Polar form:

z = 1.2 × (cos 53°7'48″ + i sin 53°7'48″)

Exponential form:

z = 1.2 × ei 0.2951672

Polar coordinates:

r = |z| = 1.2  magnitude (modulus, absolute value)

θ = arg z = 53.1301° = 53°7'48″ = 0.2951672π  angle (argument or phase)

Cartesian coordinates:

Cartesian form of imaginary number: z = 0.72+0.96i

Real part: x = Re z = 0.72

Imaginary part: y = Im z = 0.96

Hope this helps!

I am joyous to assist you anytime.

~Jarvis

3 0
3 years ago
Which number is rational? Please help, thanks!
alekssr [168]

Answer:

√9 is rational, since √9=3, others are irrational

5 0
3 years ago
Read 2 more answers
X+5(x-1)=(x-3)4-1 anyone?
Troyanec [42]
Hi there!

First of all simplify x+5(x-1)=(x-3)4-1.
This would make 6x-5=4x-13.

Next, subtract 4x from both sides.
6x-5-4x=4x-13-4x
2x-5=-13

Then add 5 to both sides.
2x-5+5=-13+5
2x=-8

Finally divide by 2 on both sides.
2x/2=-8/2
x=-4

Your answer is -4.

Hope this helped!
3 0
3 years ago
-7p^ 3(4p ^2 + 3p - 1)
nordsb [41]
How do u do that ???
3 0
3 years ago
Read 2 more answers
A 17 foot ladder is placed against a vertical wall so that the base of the ladder is 8 feet from the base wall how far up the wa
viktelen [127]

Answer:

Your answer......15 feet

WANT MORE THEN FOLLOW ME, LIKE & MARK MY ANSWER AS BRAINLIST ANSWER

8 0
3 years ago
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