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2 years ago

2(3x + 1) = x + 22 X=

Mathematics

1 answer:

Roman55 [17]2 years ago

5 0

Answer:

x=4

Step-by-step explanation:

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In a function you cannot have to of the same x values right?

LenKa [72]

Yes, in a function you cannot have two different images for the same x.

Because if an x has more than one image, you couldn't tell what is the value of the image given that x.

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3 years ago

Use the method in the Example to find the square roots of 1 + √3i

kiruha [24]

Answer:

$\sqrt{1 + \sqrt{3} i}=\pm (1.58+i 0.548)$

Step-by-step explanation:

Given

z = 1 + √3 i

Let $\sqrt{1+\sqrt(3) i}=p+iq$

Squaring both sides

$1+\sqrt(3) i=p^2-q^2+2ipq$

Comparing real and imaginary part

Re(LHS)=Re(RHS)

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

comparing Im(LHS)=Im(RHS)

√3=2pq

$q=\frac{\sqrt{3}}{2p}$

Substitute q in equation (1)

$1=p^2-(\frac{\sqrt{3}}{2p})^2$

$p^4-p^2-0.75=0$

Let $x=p^2$

$x^2-x-0.75=0$

$x=\dfrac{1\pm \sqrt{1^2+4\times 0.75}}{2}$

$x=\frac{1\pm 4}{2}$

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

x=2.5

$p^2=2.5$

thus $p=\pm 1.58$

$q=\pm 0.548$

thus,

$\sqrt{1 + \sqrt{3} i}=\pm (1.58+i 0.548)$

5 0

3 years ago

SOMEONE PLEASE ANSWER THE QUESTION BELOW! THANK YOU

Svet_ta [14]

Mhm 86(7)+88=839 that’s ur answer

8 0

2 years ago

there are 3 slices of pie left, and the angle measurement is 72 degrees, how many slices was the pie cut in to

Daniel [21]

15; this is because 3 pies make up 72
with this you can make it so that 3x=72
After this you need to find x which is a single pie
so; (3x/3)=(72/3)
x= 24
Since you know a circle is 360 degrees all around the center
You can do 360/24 making it 15 pies.

7 0

3 years ago

Find the volume of the cone 4 in and 6 in

Nataly_w [17]

Answer:

100.53 if the radius is 4 and height is 6 but if radius is 6 and height is 4 than its 150.8 hope this helps

Step-by-step explanation:

V=pi x radius squared x h over 3

7 0

2 years ago