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ki77a [65]
3 years ago
8

TEN POINTS!!!! 8^-2 * 8^-9 in exponential form

Mathematics
1 answer:
muminat3 years ago
3 0

Answer:

8^ -11

Step-by-step explanation:

8^-2 * 8^-9

The bases are the same so we can add the exponents

8 ^ (-2+-9)

8^ -11

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I just need some quick help with this. Distributive properties aren't my best section.
Anni [7]
In this case u can’t use the distributive property. U just multiple whats in the parenthesis (39•5)=195 and that’s ur answer.
Let’s say if the problem said 5(2+1) u can’t use the distributive property bc u have to do what’s in the parentheses first. 5(3)=15
But If u had a problem like 2(4x+6) then u can use the distributive property. This is bc u can’t add 4x+6 bc they aren’t like terms. So u multiple the 2 by 4x which is 8x and the 2 by 6 which is 12 then ur answer would be : 8x+12
4 0
3 years ago
What are two multiplication digits that equal to 3030
xz_007 [3.2K]
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find the factors (factors of 6=2 and 3)
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5 0
3 years ago
The sum of a number and 9 is -30
GrogVix [38]

-39+9=-30

-39 is your answer.

4 0
4 years ago
If sin^2(x) - 2sin(x) = 2, then sin(x) = _____.
alekssr [168]
Let z = sin(x).
.. z^2 -2z = 2
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3 0
3 years ago
the sum of the first n terms of a sequence is 20 - 10 / 2 ^ n - 1 find the sum of the first five terms​
Travka [436]

Answer:

S_5=\dfrac{170}{9}

Step-by-step explanation:

Given that,

The sum of first n term of a sequence isS_n=20-\dfrac{10}{2n-1}

We need to find the sum of the first 5 terms.

Put n = 5,

S_5=20-\dfrac{10}{2(5)-1}\\\\=20-\dfrac{10}{10-1}\\\\=20-\dfrac{10}{9}\\\\=\dfrac{170}{9}

So, the sum of first 5 terms is equal to \dfrac{170}{9}.

6 0
3 years ago
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