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3 years ago

What is the product?

Mathematics

1 answer:

Angelina_Jolie [31]3 years ago

7 0

The answer is the first one. You know because -4x x 5 is -20x and this option is the only one with -20x included.

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Help! Which expression is equivalent? On edge

Ira Lisetskai [31]

Answer: Choice B

$x^{1/8}y^{8}$

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Explanation:

The two rules we use are

$(a*b)^c = a^c*b^c$

$(a^b)^c = a^{b*c}$

When applying the first rule to the expression your teacher gave you, we can say that:

$\left(x^{1/4}y^{16}\right)^{1/2} = \left(x^{1/4}\right)^{1/2}*\left(y^{16}\right)^{1/2}$

Then applying the second rule lets us say

$\left(x^{1/4}\right)^{1/2}*\left(y^{16}\right)^{1/2} = x^{1/4*1/2}*y^{16*1/2} = x^{1/8}y^{8}$

Therefore,

$\left(x^{1/4}y^{16}\right)^{1/2} = x^{1/8}y^{8}$

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In short, we just multiplied each exponent inside by the outer exponent 1/2.

So that explains why the exponents go from {1/4,16} to {1/8,8} for x and y in that exact order.

7 0

3 years ago

Can some one help me on this

Vilka [71]

28 divided by 4 = 7
so do 7 * 5 which is 35 so they make 35 cookies in 5 seconds

4 0

2 years ago

College bookstore charge $60 for a yearly membership. Books will then only cost $7.60 each, tax included. Right in equation to r

Yuri [45]

Equation - 7.60b+60=m

7.60b+60=100
You’d be able to buy 5 books

4 0

4 years ago

Simplify the following expression. (65x+50y)-(16x-21y)

GarryVolchara [31]

Your going to want to first distribute the negative out to the second equation
65x+50y-16x+21y
49x+71y

5 0

3 years ago

Read 2 more answers

Find the Perimeter & Area for the following circle.

Feliz [49]

Answer:

A = 28.3 cubic inches; P = 20.1 inches

Step-by-step explanation:

Looks like 3/4 of a full circle

The area of a circle is calculated with the formula: $\pi r^{2}$

Since the problem wants pi = 3.14, we use 3.14 instead of pi in the equation.

The radius is given as 3 inches

Area = $3.14*3^{2} = 3.14*9 = 28.26$ cubic inches = 28.3 cubic inches

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Perimeter is calculated with $2\pi r$ .

But this is 3/4 of a circle with an additional two 3-inch sides

Perimeter = $\frac{3}{4}*2\pi r$ + 2(3) = 14.1 + 6 = 20.1 inches

6 0

3 years ago

Read 2 more answers