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3 years ago

I really need help with this question! And I need to show work

Mathematics

2 answers:

olganol [36]3 years ago

8 0

Answer:x=1/4

Step-by-step explanation:

120x + 21 = -9

120x = -9 -21

120=-30

x=-1/4

krek1111 [17]3 years ago

3 0

Answer:

x=0.25 or -1/4

Step-by-step explanation:

120x + 21 = -9

120x = -30 (-21 from both sides of equation)

x = -0.25 or -1/4 (divide 120 from both sides of equation)

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3 years ago

I spent $10 dollars out $25 what is percent I spent

Lina20 [59]

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3 years ago

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Complex numbers zj and zz are given by zj = 3- j2, zz = - 4 + j3. (a) express zj and zz in polar form. (b) find lz1l by first ap

inna [77]

Solution:

Given: zj = 3- j2, zz = - 4 + j3

Part a:

zj = 3- j2 = $3.6e^{-j33.7^{\circ}}$

zz = - 4 + j3 = $5e^{j143.1^{\circ}}$

Part b:

|zj| = |3− j2| = √3² +(−2)² = √13 = 3.60

|z1| = √(3− j2)(3+ j2) = √ 13 = 3.60.

Part c:

With the help of part a:

z1z2 = $3.6e^{-j33.7^{\circ}}.5e^{j143.1^{\circ}}$

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3 years ago

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Drupady [299]

For the answer to the question above asking to f<span>ind the coordinates of Z without using any new variables.
</span>

Vector WZ equals vector VP, which is (p, -q)
So Z is (-p - r + p, q - q) which is (-r, 0)
I hope my answer helped you.

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3 years ago

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Andru [333]

Answer:

Step-by-step explanation:15+15+9+9+3+3=54

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3 years ago