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3 years ago

Which expression is equivalent to (5x^3)(4x)^3

Mathematics

2 answers:

Tems11 [23]3 years ago

7 0

Answer:B

Step-by-step explanation:

Just took the test

sergij07 [2.7K]3 years ago

5 0

Answer:

320 $x^{6}$

Step-by-step explanation:

Using the rules of exponents

• $(ab)^{n}$ ⇔ $a^{n}$ $b^{n}$

• $a^{m}$ × $a^{n}$ ⇔ $a^{(m+n)}$

simplifying $(4x)^{3}$ = 4³ × x³ = 64x³

(5x³) × $(4x)^{3}$

= 5x³ × 64x³ = (5 × 64) × (x³ × x³) = 320 $x^{(3+3)}$ = 320 $x^{6}$

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2 years ago

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IgorC [24]

As we know Conversion from fahrenheit to celsius is
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3 years ago

When you add their numbers together you get 207 . Jen's number is 9 more than Carrie's, and Fran's number is 3 less than Jen's n

murzikaleks [220]

Answer: Fran's number is 70

Step-by-step explanation:

Let x represent Jen's number.

Let y represent Carrie's number.

Let z represent Fran's number.

When you add their numbers together you get 207. This means that

x + y + z = 207 - - - - - - - - - -1

Jen's number is 9 more than Carrie's number. It means that

y = x - 9

Fran's number is 3 less than Jen's number. It means that

z = x - 3

Substituting y = x - 9 and z = x - 3 into equation 1, it becomes.

x + x - 9 + x - 3 = 207

3x - 12 = 207

3x = 207 + 12 = 219

x = 219/3 = 73

y = x - 9 = 73 - 9

y = 64

z = x - 3 = 73 - 3

z = 70

8 0

3 years ago