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Arte-miy333 [17]
3 years ago
11

Explain why -7 would not be a cube root of 343​

Mathematics
1 answer:
Korolek [52]3 years ago
7 0

Answer:

Because -7 will be imaginary number .

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Which of the binomials below is a factor of this trinomial x^2+4x-60
trasher [3.6K]

Suppose x-6 is listed as a possible answer. That is zero if x = 6. So put x=6 into the original x^2 + 4x - 60 to get 6^2 + 4*6 - 60 = 36 + 24 -60 = 0. hence x-6 is a factor.

Answer (x-6)

on this hand :x-5 is not a factor, because plugging x=5 into does not work.

6 0
3 years ago
Solve for x in the equation x^2 + 2x + 1 = 17
rusak2 [61]
I hope this helps!!!!!!

3 0
3 years ago
Read 2 more answers
Given that <img src="https://tex.z-dn.net/?f=z%3Dx%2Biy" id="TexFormula1" title="z=x+iy" alt="z=x+iy" align="absmiddle" class="l
Mnenie [13.5K]

Answer:

z= 5-2i

Step-by-step explanation:

Start replacing!

(x+iy) + 4i (x-iy) = -3+18i \\ x+iy +4ix -4i^2 y = -3 + 18i \\\\x + i (4x+y) +4y = -3 + 18i\\x+4y + (4x+y) i = -3 + 18i

Now two complex numbers are equal if both the real and imaginary parts are equal, which gives you the system of equation \left \{x+4y=-3} \atop {4x+y=18} \right.

Pick any method to solve it and you'll get x=5, y= -2

6 0
3 years ago
16 X +12 over two equals 100
scoray [572]

The value of x in the given equation i.e \frac{16x+12}{2}=100 is 11.825

Given that equation  \frac{16x+12}{2}=100  and asked to evaluate the value of x in the given equation

⇒ \frac{16x+12}{2}=100(given equation)

To solve the given equation, need to use the various mathematical  operations i.e division and subtraction)

⇒8x+6=100 ( using the operation division)

⇒8x=100-6 (using the operation subtraction)

⇒8x=94

⇒x=\frac{94}{8}(using the operation division)

⇒x=11.825

By using the mathematical  operations i.e division and subtraction the value of x came as 11.825

⇒Therefore, The value of x in the given equation i.e \frac{16x+12}{2}=100 is 11.825

Learn more about equation here:

brainly.com/question/10413253

#SPJ9

6 0
2 years ago
What’s the awnser(can someone do these for me i’m begging you my parents are gonna kill me)
puteri [66]

Answer:

-3/2

(2x-14)/3

(-2,-6)

Step-by-step explanation:

I solved the first one for you already ( -3/2)

To make a line perpindicular to another line they need to intersect at a 90 degree angle. To do this the slope of the lines have to be the negative  reciprical (take the fraction, flip it, and apply a negative sign to it)

If you do this to -3/2 you get 2/3

If we follow our y=mx+b equation from before we (so far) have

2/3x+b=y

which means that we just need to solve for b

We also know that it crosses the point (7,0) which means that if we plug in 7 for x and 0 for y we can solve for b

we have

(2/3)*7+b=0

Solve for B

14/3+b=0

b= -14/3

Which means our equation looks like this

(2x-14)/3

our two equations look like this

(-3/2)x-9

(2x-14)/3

We need to find where their coordinates are the same (where they intersect)

We can do this by setting them equal to each other and then solving for x

we have

(-3/2)x-9=(2x-14)/3

solve for x

-4.5x-27=2x-14

-13= 6.5x

x= -2

Now that we know what x equals we can plug this into any of our two beginning equations

(-3/2)*-2-9=y

3-9=y

-6=y

Which means our coordinates are (-2,-6)

if you have any questions let me know

6 0
3 years ago
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