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3 years ago

How do you simplify the following equation? √64x²

1 answer:

4 0

$\sqrt{64 x^{2} }$
same thing as:
$\sqrt{8*8*x*x}$

there are two 8's and two x's in there so they can come out to give you the answer 8x

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Solve the equation -3+1+10x=x+4 hurry homies

ddd [48]

Answer:

x = 2/3

Step-by-step explanation:

combine -3 and 1. We get -2 there, and now have:

-2 + 10x = x + 4.

Combining the x terms, we get 9x = 6, so that x = 6/9, or x = 2/3

7 0

2 years ago

Read 2 more answers

The first answer already given, what's the second answer (in the green box)

chubhunter [2.5K]

Solution:

Since the graph passes through the given points, (7, 20) & (-2, 11) are the solutions of the given equation y = x + ?.

⇒(x, y) = (7, 20); (-2, 11)

Substituting the variables with (7, 20),

20 = 7 + ?

20 - 7 = ?

? = 13

Similarly,

11 = -2 + ?

? = 13

∴ y = 13

8 0

2 years ago

!!!PLEASE HELPP ME!!

Annette [7]

Answer:

negative :)

Step-by-step explanation:

hope this helps

6 0

2 years ago

Read 2 more answers

Find the surface area of a cube that has edges 4 inches long

djyliett [7]

6 * (4 in)^2 = 96 in^2 . . . . area of a 4 inch cube.

4 0

2 years ago

Point E is on line segment DF. Given DE = 2x, EF = 2x – 6, and

Kamila [148]

Answer:

EF is 16.

Step-by-step explanation:

So we know that Point E is somewhere on Line DF. In other words, DE plus EF must equal DF. In an equation, this is:

$DF=DE+EF$

We are given that DE is 2x, EF is 2x-6, and DF is 3x+5. So, substitute:

$(3x+5)=(2x)+(2x-6)$

Now, solve for x.

On the right, combine like terms:

$3x+5=4x-6$

Subtract 4x from both sides:

$-x+5=-6$

Subtract 5 from both sides:

$-x=-11$

Divide both sides by -1:

$x=11$

Now that we know x is 11, substitute this back into the equation for EF to find EF.

$EF=2x-6$

Substitute 11 for x:

$EF=2(11)-6$

Multiply:

$EF=22-6$

Subtract:

$EF=16$

And we're done!

8 0

3 years ago