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Art [367]
3 years ago
5

Which one represents the equation log3 81 = 4 in exponential form?

Mathematics
2 answers:
MariettaO [177]3 years ago
6 0
Log(base 3)(81)=4
3^4=81
Tresset [83]3 years ago
5 0

Answer:

Exponential form is log_{3}(3^{4}) = 4.

Step-by-step explanation:

Given : log_{3}(81) =4.

To find : Represent in exponential form .

Solution : We have given that  log_{3}(8) =4.

We can write as 81 = 3^{4}.

By the logarithm form  log_{a}(a^{n}) =n.

Then ,

log_{3}(3^{4}) = 4

Therefore, Exponential form is log_{3}(3^{4}) = 4.

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Is x^ 2 - 16 the difference between two squares? Why?
bearhunter [10]

Answer:

x1= -4

x2 = 4

Step-by-step explanation:

Set the equation equal to zero

x2 − 16 = 0

then

(x + 4)(x − 4) = 0

(x+4)= 0 which is equal to -4

and

(x-4)= 0 equals 4

3 0
3 years ago
Read 2 more answers
Mrs.Welch needs to buy some cat food . If each can costs $0.79 and she has a coupon for $2 off the entire purchase, how many can
allochka39001 [22]

Answer:

11 cans of cat food...........

Step-by-step explanation:

£0.79 x 11 = £8.69

£8.69 - £2 = 6.69

6 0
3 years ago
Read 2 more answers
Given that $x \le -7,$ identify all the correct conclusions. (A) $3x \le -21.$ (B) $3x \ge -21.$ (C) $-3x \le 21.$ (D) $-3x \ge
exis [7]

Answer:

Options A and D are correct choices.

Step-by-step explanation:

We have been given an inequality x\leq -7 and we are asked to find the correct options from our given choices.

Let us solve inequalities in our given options one by one to see which of these matches with our given inequality.

(A) 3x\leq -21  

x\leq \frac{-21}{3}

x\leq -7

We can see that option A gives the same answer as our given inequality, therefore, option A is the correct choice.

(B) 3x\geq -21

x\geq \frac{-21}{3}

x\geq -7

This inequality represented in option C gives solution that x should be greater than or equal to -7, which is opposite to our given inequality, therefore, option B is incorrect.

(C) -3x\leq 21

Dividing inequality by a negative number swaps inequality sign.

x\geq \frac{21}{-3}

x\geq -7

This inequality gives solution that x should be greater than or equal to -7, which is opposite to our given inequality, therefore, option C is incorrect.

(D) -3x\geq 21  

Dividing inequality by a negative number swaps inequality sign.

x\leq \frac{21}{-3}

x\leq -7

We can see that option D gives the same answer as our given inequality, therefore, option D is the correct choice.  

8 0
3 years ago
Please help I will mark brainliest I'm really in need now<br> (Please explain)
Ksivusya [100]

Answer:

i think the second question (the choose the Function) means choose the function that has changed the most.

the first choose function one, i dont know but... according to wikipedia, "an initial value problem is an ordinary differential equation together with an initial condition which specifies the value of the unknown function at a given point in the domain. Modeling a system in physics or other sciences frequently amounts to solving an initial value problem." hope this helps

Step-by-step explanation:

6 0
3 years ago
3
Alex17521 [72]

Answer:

A

Step-by-step explanation:

I think I am not sure I just started to do this in school...

6 0
3 years ago
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