3 years ago

I NEED HELP!!! PLEASE ANSWER THESE QUESTIONS!

Mathematics

1 answer:

Tanya [424]3 years ago

8 0

Okay just ask and I got you man

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What value of x is in the solution set of 2(3x - 1) = 4x - 6?<br> 0-10<br> 0-5<br> -1

maxonik [38]

Step-by-step explanation:

6x-2 = 4x-6

2x+4= 0

x= -2

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3 years ago

URGENT. WILL MARK BRAINLIEST IF CORRECT!!!

pentagon [3]

Answer:

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Step-by-step explanation:

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Nimfa-mama [501]

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2 years ago

What is the modulus of |9+40i|?

Talja [164]

Answer:

Step-by-step explanation:

We know that complex numbers are a combination of real and imaginary numbers

Real part is x and imaginary part y is multiplied by i, square root of -1

Modulus of x+iy = $\sqrt{x^2+y^2}$

Here instead of x and y are given 9 and 40

i.e. 9+40i

Hence to find modulus we square the coefficients add them and then find square root

|9+49i| = $\sqrt{9^2+40^2} =\sqrt{1681}$

By long division method we find that

|9+40i| =41

6 0

3 years ago

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How many and what type of solutions does 7x^2−4x+3 have? 1 rational solution 2 rational solutions 2 irrational solutions 2 nonre

Gre4nikov [31]

Answer:

2 non real solutions.

Step-by-step explanation:

We need to use discriminant,

for ax²+bx+c=0

The discriminat is b²-4ac

If the discriminant is,

→ less than 0, then 0 real solutions

→ equal to 0, then 1 real solutions

→ more than 0, then 2 real solutions

Given that,

7x²−4x+3=0

a=7, b=-4, and c=3

→ (-4)²-4(7)(3)

→ 16-84

→ -68

You can see this is less than 0, then non real solutions. [2 nonreal solutions]

7 0

3 years ago

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