3 years ago

8 to the -2nd power times a to the 7th power

Mathematics

1 answer:

malfutka [58]3 years ago

8 0

A^7/64. When something is to a negative power, move it to the denominator. <span />

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За – 6а + 2 = 8а + 20 – 5а

Luda [366]

Answer:

a = -3

Step-by-step explanation:

3a - 6a + 2 = 8a + 20 - 5a

Combine Like Terms

-3a + 2 = 3a + 20

-2 -2

-------------------------------------

-3a = 3a + 18

-3a -3a

-------------------------------------

-6a = 18

---- ----

-6 -6

a = -3

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2 years ago

X = 0.5<br> Solve please

faltersainse [42]

Answer:

2x-1=0

Step-by-step explanation:

x-0.5=0

10x-5=0

2x-1=0

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One number is 8 more than the other. When the larger is divided by the smaller, the quotient is 7/5

Wewaii [24]

Answer:

<h3> The numbers are 20 and 28</h3>

Step-by-step explanation:

x - the other number (the smaller one)

x+8 - 8 more than the other number (the larger number)

$\dfrac{x+8}x=\dfrac75\\\\(x+8)\cdot5=x\cdot7\\\\5x+40=7x\\^{\quad-40\qquad-40}\\{}\quad5x = 7x-40\\^{\quad-7x\quad-7x}\\-2x=-40\\^{\div(-2)\quad\div(-2)}\\{}\ \ x=20\\\\x+8=28$

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3 years ago

Which statement is true regarding the functions f(x) and g(x)?

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F(x) and g(x) are common fractures

Yuh??

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