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3 years ago

6

What is X if 2 times the square root of 2X-1 =4

1 answer:

svp [43]3 years ago

5 0

Remove the radical by raising each side to the index of the radical.
x = 5/2

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Cube root<br><img src="https://tex.z-dn.net/?f=%20-%204%20%5Csqrt%5B3x%5D%7Bx%20%2B%2025%20%3D%2035%7D%20" id="TexFormula1" titl

Taya2010 [7]

Answer:

$\large\boxed{x=-\dfrac{44,475}{64}}$

Step-by-step explanation:

$-4\sqrt[3]{x+25}=35\\\\\left(-4\sqrt[3]{x+25}\right)^3=35^3\\\\-4^3(x+25)=42,875\\\\-64(x+25)=42,875\qquad\text{use distributive property}\\\\-64x-1,600=42,875\qquad\text{add 1,600 to both sides}\\\\-64x=44,475\qquad\text{divide both sides by (-64)}\\\\x=-\dfrac{44,475}{64}$

8 0

3 years ago

K+5/3=-7/4 (those are fractions) also can you show your work?

iris [78.8K]

Answer:

-3 5/12=k

Step-by-step explanation:

K+5/3= -7/4

subtract 5/3 from both sides

K= -7/4-5/3

lcm of 4 and 3 is 12

so

K= -21/12-20/12

K= -41/12

K= -3 5/12

5 0

3 years ago

Order 7.007, 70.07, 70.700, 7.070 greatest to least.

lawyer [7]

70.700, 70.07, 7.070, 7.007.
1.050 -> 1.1
8.964 -> 8.96

6 0

3 years ago

Please help me, its due today!!!

zlopas [31]

Answer:

$7$

Step-by-step explanation:

So we have the expression:

$|3x-1|$

And we want to evaluate it for x=-2.

So, substitute -2 for x:

$|3(-2)-1|$

Multiply:

$=|-6-1|$

Subtract:

$=|-7|$

The absolute value of a negative is positive. So:

$=7$

And we're done!

8 0

3 years ago

What is the product of 3x(x^2+4)

Butoxors [25]

<span>3x(x^2+4)
= 3x^3 + 12x

hope it helps</span>

3 0

3 years ago