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3 years ago

8^15÷8^−3 it needs to like this 43^5 I can't find out the answer

Mathematics

2 answers:

alekssr [168]3 years ago

4 0

Answer:

8^12

Step-by-step explanation:

Exponents are confusing at first. You subtract them when dividing, and add them when multiplying, if the base number is the same.

Picture 8 to the 15th as a numerator of:

8x8x8x8x8x8x8x8x8x8x8x8x8x8x8 over a denominator of

8x8x8

To solve that, you'd cancel out 3 of the top 8s and the three bottom 8s, marked in bold to be easier to see. This leaves you with

8^12

Does that help?

Happy to answer questions.

RideAnS [48]3 years ago

3 0

Answer:

Hello!

The answer is 8^18.

Step-by-step explanation:

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For the following pair of functions, find (f+g)(x) and (f-g)(x).

ch4aika [34]

Given:

The functions are

$f(x)=4x^2+7x-5$

$g(x)=-9x^2+4x-13$

To find:

The functions $(f+g)(x)$ and $(f-g)(x)$ .

Solution:

We know that,

$(f+g)(x)=f(x)+g(x)$

$(f+g)(x)=4x^2+7x-5-9x^2+4x-13$

$(f+g)(x)=(4x^2-9x^2)+(7x+4x)+(-5-13)$

$(f+g)(x)=-5x^2+11x-18$

And,

$(f-g)(x)=f(x)-g(x)$

$(f-g)(x)=(4x^2+7x-5)-(-9x^2+4x-13)$

$(f+g)(x)=4x^2+7x-5+9x^2-4x+13$

$(f+g)(x)=(4x^2+9x^2)+(7x-4x)+(-5+13)$

$(f-g)(x)=13x^2+3x+8$

Therefore, the required functions are $(f+g)(x)=-5x^2+11x-18$

and $(f-g)(x)=13x^2+3x+8$ .

7 0

3 years ago

Help me please I dont know what to do

gtnhenbr [62]

Answer:

It's option A. ± √60

Step-by-step explanation:

x^2 = 60

here ^2 will move to the other side and when it does it'll become a square root to 60.

so, x = √60

now, the answer in its simplified form would be 2√15 and -2√15.

The answer of this square root will be negative as well as positive, so, ±√60.

3 0

3 years ago

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Which best describes the realationship between the successive terms in the sequence shown

Kaylis [27]

Answer:

$the \: common \: difference \: is \: - 10$

Step-by-step explanation:

$- 9 - 10 = - 1$

$- 1 - 10 = - 11$

$- 11 - 10 = - 21$

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3 years ago

A Garden table and bench cost $825 combined. the Garden table cost $75 more than the bench. what is the cost of the bench

Luda [366]

Answer:

825 - 75 = 750

750 / 2 = 375

the bench cost: 375$

the garden table cost: 450$

Step-by-step explanation:

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Answer:

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