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3 years ago

Expand 5(2x-4) please please

Mathematics

1 answer:

kotykmax [81]3 years ago

7 0

Answer:

10x - 20

Step-by-step explanation:

Distribute 5 to each of the terms within the parentheses to get 5(2x) - 5(4) = 10x - 20.

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Simplify the expression 7x/9x

pantera1 [17]

7x/9x = 7/9

hope it helps

4 0

3 years ago

Complete the steps to simplify (y^4/3•y^2/3)^-1/2. Apply the product of powers property to the expression inside the parentheses

MrRissso [65]

Option A

$\left(y^{\frac{4}{3}} \cdot y^{\frac{2}{3}}\right)^{\frac{-1}{2}} = \left(y^{2}\right)^{\frac{-1}{2}}$

Solution:

Given expression is:

$\left(y^{\frac{4}{3}} \cdot y^{\frac{2}{3}}\right)^{\frac{-1}{2}}$

Product of powers property:

The product of powers property tells us that when you multiply powers with the same base you just have to add the exponents

Which is represented as,

$a^m.a^n = a^{m+n}$

Therefore, the given expression becomes,

$\left(y^{\frac{4}{3}+\frac{2}{3}}\right)^{\frac{-1}{2}}$

Now add the exponents, we get

$\left(y^{\frac{4+2}{3}}\right)^{\frac{-1}{2}}$

Simplify the above expression

$\left(y^{\frac{6}{3}}\right)^{\frac{-1}{2}}$

Simplify the exponent of y, we get

$\left(y^{2}\right)^{\frac{-1}{2}}$

Thus Option A is correct

6 0

3 years ago

Read 2 more answers

Which is used to find the number of ways a given number of objects can be ordered? need help asap please im between factorial an

raketka [301]

Factorial is the correct answer because in combinations the order does not matter

8 0

4 years ago

Read 2 more answers

What is the reciprocal of 31/2

blagie [28]

The reciprocal of a number is the number that the first number will multiply with that equals one.
So, for instance, the reciprocal of 3 is 1/3.
Since we can write 3 as 3/1, we can see it's simply flipping the numerator and denominator to find the reciprocal.
So, flipping numerator and denominator, the reciprocal of 31/2 is 2/31.

8 0

3 years ago

Find 3 consecutive odd integers such that 3 times the middle number is 153.

abruzzese [7]

Answer:

Step-by-step explanation:

Let the numbers be y, y+2, y+4

3(y+2)=153

3y+6=153

3y=153-6

3y=147

y=49

y+2=51

y+4=53

4 0

3 years ago