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tensa zangetsu [6.8K]
3 years ago
12

Write an equivalent exponential equation for the following three problems.

Mathematics
1 answer:
Naily [24]3 years ago
8 0

<u>Answer with step-by-step explanation:</u>

We are given three different expressions and we are to write an equivalent exponential equation for them.

We know that the standard form of a logarithmic expression is given by:

y = log_a ( x ) which is equivalent to the exponential form  x = a ^ y.

1. log _ {10} (0.1) = -1 ---> 10^{-1}=0.1

2. log _ {3} 9 = 2 ---> 3^2=9

3. log _ 5 ( \frac { 1 } { \sqrt { 5 } } ) = -\frac { 1 } { 2 } ---> 5^{-\frac{1}{2} }=\frac{1}{\sqrt{5} }

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What is the decimal expansion of 2/3
matrenka [14]

Answer:

  0.\overline{6}

Step-by-step explanation:

It is a repeating decimal fraction:

  \dfrac{2}{3}=0.6666...=0.\overline{6}

__

You can see this if you do the long division. Each step is the same as the one before.

3 0
4 years ago
Solve for x. ILL GIVE BRAINLIEST
Elodia [21]

Answer:

64

Step-by-step explanation:

the red height is 48 by pythagorean, and by 3:4:5 similarity x=64.

7 0
3 years ago
A product code consists of four letters followed by five digits. Only the letters X, Y, and Z can be used ( and any of the digit
Morgarella [4.7K]

Answer:

\frac{49}{81}, 60.494%

Step-by-step explanation:

I am going to try to tackle this. I might miss a step as I am currently taking discrete mathematics.

We want to find all the possibilities with 1y, 2ys, 3ys, and 4ys, out of all total possibilities.

_ _ _ _   _ _ _ _ _

For the letters, in each spot, we have 3 choices. For the numbers, we have 10 choices in each spot

so

3*3*3*3 * 10*10*10*10*10

= 81*100000

= 8100000

The number of Y's will never affect the number of permutations of the numbers.

So:

For 1 y, we have

Y _ _ _ * 10*10*10*10*10

But we also have

_ Y _ _

_ _ Y _

and

_ _ _ Y

So we can multiply the number we get in one calculation by 4

4 *

Y _ _ _ * 10*10*10*10*10

2*2*2 * 10*10*10*10*10

= 800000 * 4  = 3200000

For 2 y's, we have

YY _ _

_ YY _

__ YY

3*

YY 2*2 * 10^5

4 * 100000

400000 * 3 = 1200000

For 3 y's, we have

YYY _

_ YYY

2 *

YYY 2 * 10^5

200000 * 2

= 400000

For 4 y's, we have

YYYY * 10^5

100000

Now we can add them all up and divide it by our original number 8100000

\frac{100000 + 400000 + 1200000 + 3200000}{8100000} = \frac{49}{81}

7 0
3 years ago
On every three hamburgers that McDonald’s make they use 9 pickles how many pickles would they use on 99 burgers
Ksivusya [100]

Answer:

891 pickles :)

Step-by-step explanation:

all you do is multiply 9 and 99 and you should get 891

Hope this helped

4 0
3 years ago
Please help me with number 41!!!!!!!!
olga2289 [7]
4y>12
y>12/4
y>3

5>3
6>3
7>3

Therefore, the solution is {5,6,7}
4 0
3 years ago
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