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2 years ago

Simplify: (x - 8) (x + 8) *

Mathematics

1 answer:

padilas [110]2 years ago

3 0

Step-by-step explanation:

(x - 8) (x + 8) = x² - 64

because

x² + 8x - 8x - 64

(a⁵)^-1 = 1/(a⁵)

that is the definition of a negative exponent. it means 1/...

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Which of the values is equivalent to 5^–3? A) 1/15 B) 1/125 C) − 15 D) − 125

bazaltina [42]

Answer:

C 1/125

Step-by-step explanation:

5 ^−3

Calculate 5 to the power of −3 and get

1/125

7 0

2 years ago

Which expressions can you use to find 75% of 56??

hodyreva [135]

75/100 x/56
Then do the math to find what's <span>75% of 56.</span>

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4 years ago

Enter a recursive rule for the geometric sequence. 6, −18, 54, −162, ...

svlad2 [7]

Answer:

The required recursive formula is:

$a_n=(-3)\times a_{n-1}$

Step-by-step explanation:

We are given a geometric sequence as:

6,-18,54,-162,.....

Clearly after looking at different terms of the sequence we could observe that the sequence is an geometric progression (G.P.) with common ratio= -3 denoted by r.

Let $a_n$ represents the nth term of the sequence.

This means that:

$a_1=6, a_2=-18, a_3=54, a_4=-162,......$

As the common ratio is -3.

so,

$a_1=6\\\\a_2=-18=(-3)\times a_1\\\\a_3=54=(-3)\times a_2\\\\.\\.\\.\\.\\.\\.\\.\\.\\.a_n=(-3)\times a_{n-1}$

Hence, the required recursive formula for the geometric sequence is:

$a_n=(-3)\times a_{n-1}$

5 0

3 years ago

Y = x^2 + 2x - 8 Solve with zeros

Katen [24]

Answer:

x=-4 x=2

Step-by-step explanation:

y = x^2 + 2x - 8

Set equal to zero

0 = x^2 + 2x - 8

Factor

What two numbers multiply to -8 and add to 2

4 * -2 = -8

4+-2 = 2

0=(x+4) ( x-2)

Using the zero product property

x+4 =0 x-2 =0

x=-4 x=2

6 0

3 years ago

I got 30 will someone double check me please.

Tpy6a [65]

That’s the correct answer

4 0

3 years ago

Read 2 more answers