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3 years ago

Which statement describes how to solve ^3 squareroot x^2-6= ^3 square root 2x+2

Mathematics

2 answers:

Alecsey [184]3 years ago

8 0

Answer:

Cube both sides and then solve the resulting quadratic equation.

Step-by-step explanation:

It's the answer on edge

aleksley [76]3 years ago

4 0

Answer:

Square both sides and then solves the resulting quadratic equations

Step-by-step explanation:

The equation is 3sqrt(x^2-6)=3sqrt(2x+2)

We can solve this by;

First square both sides;

(3√(x²-6))²= (3√(2x+2))²

We obtain;

9(x²-6)=9(2x+2)

We simplify to obtain a quadratic equation;

x²-6=2x+2

= x²-2x-8=0

Then we solve the quadratic equation;

x²-4x+2x-8=0

x(x-4)+2(x-8)=0

(x+2)(x-8)=0

Values of x = -2 or 8

You might be interested in

If6 x 57 = 342, what is 6 x 58? (Do not multiply).

Lubov Fominskaja [6]

Answer: 348

if 6 x 57 = 342

then 6 x 58 = 342 + 6

=> 6 x 58 = 348

therefore 6 x 58 = 348

hope that helps...

3 0

3 years ago

The thickness of a protective coating applied to a conductor designed to work in corrosive conditions follows a uniform distribu

pochemuha

Answer:

$P(24< X$

And replacing we got:

$P(24< X$

Step-by-step explanation:

We can define the random variable X as the thickness of a protective coating applied to a conductor designed to work in corrosive conditions. And the distribution for X is given by:

$X \sim Unif (a = 20, b=40)$

And we want to find this probability:

$P(24< X$

And in order to find this probability we can use the cumulative distribution function given by:

$F(x) = \frac{x-a}{b-a} , a\leq X \leq b$

And if we use this formula for the probability desired we have:

$P(24< X$

And replacing we got:

$P(24< X$

5 0

3 years ago

Nikola works as an electrician and is paid $22.50 an hour. Over the course of a month he works 40 hours a week, and this month t

Oduvanchick [21]

Answer:

$3600

Step-by-step explanation:

7 0

4 years ago

A pair of integers whose sum is 20

sergij07 [2.7K]

Answer:

10+10

Step-by-step explanation:

when u add them they give you 20 they're integers

7 0

4 years ago

Read 2 more answers

Can someone please explain how to do this.

lutik1710 [3]

Set the to equal:

x^2 - 4x+4 = 2x-4
solve for X

subtract 2x from each side:
x^2 -6x + 4 = -4

subtract 4 from each side:

x^2 -6x = -8

add 8 to both sides:

x^2 -6x +8 = 0

factor the polynomial:

x = 4 and x = 2

using the line equation replace x with 2 and 4 and solve for y

y = 2(2) - 4 = 0
y = 2(4)-4 = 4

so the 2 points the line crosses the curve is (2,0) and (4,4)

using those 2 points you can calculate the length:
distance = sqrt((x2-x1)^2 +(y2-y1)^2

distance = sqrt( (4-2)^2 + (4-0)^2)

distance = sqrt (2^2 + 4^2)
distance = sqrt (4+16)
= sqrt 20
= 2 sqrt(5) EXACT LENGTH

4 0

3 years ago