X2 - 1 In Out 5 9 -3 -7 7 -20

NEED HELP ASAP 70 POINTS

Nataliya [291]

Answer:

1) Option A) is correct

The given rational exponent expression is not simplified correctly as a radical expression is

$x^{\frac{7}{4}}=\sqrt[7]{x^4}$

2)Option A) is correct

That is $(729x^3y^{-18})^{\frac{1}{6}}=\frac{3\sqrt{x}}{y^3}$

Step-by-step explanation:

1) Given that $x^{\frac{7}{4}}=(\sqrt{x^7})^\frac{1}{4}$

$x^{\frac{7}{4}}=\sqrt[4]{x^7}$ is the correct answer but in the given problem they gave the RHS as wrong.

Therefore the given rational exponent expression is not simplified correctly as a radical expression is

$x^{\frac{7}{4}}=\sqrt[7]{x^4}$

2)Given that the rational exponent expression is $(729x^3y^{-18})^{\frac{1}{6}}$

To find it as a radical expression:

$(729x^3y^{-18})^{\frac{1}{6}}=(729)^{\frac{1}{6}}(x^3)^{\frac{1}{6}}((y^{-18})^{\frac{1}{6}})$

$=3(x^{\frac{3}{6}})(y^{\frac{-18}{6}})$

$=3(x^{\frac{1}{2}})(y^{-3})$

$=\frac{3\sqrt{x}}{y^3}$

Therefore $(729x^3y^{-18})^{\frac{1}{6}}=\frac{3\sqrt{x}}{y^3}$

Therefore Option A) is correct

That is $(729x^3y^{-18})^{\frac{1}{6}}=\frac{3\sqrt{x}}{y^3}$

3 0

3 years ago

Approximate 188 to near hundreth

kipiarov [429]

Answer:

200

Step-by-step explanation:

we look at the tens place which is 8 since it greater than 5 we turn 8 and the number after into zeros and the 1 into a 2.

hope this welps :3

6 0

3 years ago

Samir bought 3 pounds how cement to repair the cracks in his sidewalk. Each crack needs to be filled with 2 ounces of cement.

ehidna [41]

Answer:

The answer is 24 cracks will be filled

Step-by-step explanation:

hope it helps :3

16 ounces in a pound. convert pounds to ounces

calculate the amount of cement we have. That would be 3 x 16 = 48 ounces of cement.

The amount of cracks to be filled : 48 /2 = 24 cracks

6 0

3 years ago

Read 2 more answers

A wire is first bent into the shape of a rectangle with width 7in and length 9in then the wire is bent and reshaped into a squar

inysia [295]

Answer:

Length of side of square = 8 inch

Step-by-step explanation:

Given:

Length of rectangular wire = 9 inch

Width of rectangular wire = 7 inch

Find:

Length of side of square

Computation:

We know that same wire is used from square

So,

Perimeter of rectangle = Perimeter of square

2[l + b] = 4 x side

2[9 + 7] = 4 x Length of side of square

2[16] = 4 x Length of side of square

32 = 4 x Length of side of square

Length of side of square = 32 / 4

Length of side of square = 8 inch

7 0

3 years ago

URGENT PLEASE HELP Find the slope

hichkok12 [17]

Answer:

2/3

Step-by-step explanation:

Look it up

Your on IXL

And your in 8th grade

SKSKSKSKSKSKSKKSKSKSSK

7 0

3 years ago