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2 years ago

Solve 5x+1/2(4x+8)=25

2 answers:

8 0

Let's solve your equation step-by-step.5x+12(4x+8)=25Step 1: Simplify both sides of the equation.5x+12(4x+8)=25Simplify: (Show steps)7x+4=25Step 2: Subtract 4 from both sides.7x+4−4=25−47x=21Step 3: Divide both sides by 7.7x7=217x=3Answer:x=3

Digiron [165]2 years ago

6 0

X=3 hope i helped.
enjoy the rest of your day!!

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What is the other square root of 119 + 120i?

MakcuM [25]

Answer:

$\sqrt{119+120 i}=\pm (12.24+i 4.90)$

Step-by-step explanation:

Given

z = 119 + 120 i

Let $\sqrt{119+120 i}=p+iq$

Squaring both sides

$119+120 i=p^2-q^2+2ipq$

Comparing real and imaginary part

Re(LHS)=Re(RHS)

$119=p^2-q^2$ ...........................(1)

comparing Im(LHS)=Im(RHS)

120=2pq

$q=\frac{60}{p}$

Substitute q in 1

$119=p^2-(\frac{60}{p})^2$

$p^4-119p^2-(68)^2=0$

Let $x=p^2$

$x^2-119x-4624=0$

$x=\dfrac{119\pm \sqrt{119^2+4\times 4624}}{2}$

$x=\frac{119\pm 180.71}{2}$

we take only Positive value because $p^2=x$

x=149.85

$p^2=149.85$

thus $p=\pm 12.24$

$q=\pm 4.90$

thus,

$\sqrt{119+120 i}=\pm (12.24+i 4.90)$

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2 years ago

What is the value of the expression 30-5x4+2

maks197457 [2]

If that is a multiplication sign then the answer is 12. But if that is 5x^4 then the answer is -(5x^4-32)

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3 years ago

Help??? It’s pretty complicated, well for me.

masha68 [24]

Answer:

The first box is 10.2

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2 years ago

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Answer:

answer is 1

Step-by-step explanation:

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