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KonstantinChe [14]
3 years ago
14

What is 8x8x8x8x3x3 in exponential form?

Mathematics
2 answers:
luda_lava [24]3 years ago
7 0

Answer:  8^4 \times 3^2

On a keyboard, you can type 8^4*3^2 to indicate the same thing.

===========================================================

Explanation:

There are four copies of 8 being multiplied. Writing 8^4 is a shorthand way of saying 8 \times 8 \times 8 \times 8. The exponent tells us how many copies of the base to multiply out.

Similarly, we have two copies of 3 which means 3 \times 3 = 3^2

Morgarella [4.7K]3 years ago
4 0

Step-by-step explanation:

8 ^{4}  \times 3 {}^{2}

Count how many of the same number, since you have four 8's the exponent will be

8 {}^{4}

same applies for 3

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If I have 18 pies and eat 13.67 percent of each one how much pie have I eaten?
PilotLPTM [1.2K]

Answer:

2.46 pies (round if asked)

Step-by-step explanation:

You are eating 13.67% of <em>each</em><em> </em>pie, so you will multiply 18 × 0.1367 = 2.46

7 0
3 years ago
Refer previous problem. Suppose that you wish to estimate the difference between the mean acidity for rainfalls at two different
aivan3 [116]

Answer:

Hence,we need at least 136 rainfall PH values in the sample i.e

n ≥ 136

Step-by-step explanation:

We are given that:

(σ1)^2 = (σ2)^2 = Population variance = 0.25

So, E < 0.1

Confidence coefficient (c) = 0.9

n = n1 = n2

For confidence level, 1 - α = 0.9,we'll determine Z (α /2) = Z 0.05 by looking up 0.005 using the normal probability table which i have attached.

So, Z (α /2) = 1.645

The margin of error E is given as;

E = Z (α /2)√[(σ1)^2)/n1] + [(σ2)^2)/n2]

= Z (α /2)√({(σ1)^2 + (σ2)^2}/n) < 0.1

Multiply both sides by √n to get;

Z (α /2)√(σ1)^2 + (σ2)^2} < 0.1√n

Divide both sides by 0.1;

{Z (α /2)√(σ1)^2 + (σ2)^2}}/0.1 <√n

When we square each side, we get

{Z (α /2)√(σ1)^2 + (σ2)^2}}/0.1} ^2 < n

We'll now fill in the known values and solve;

n > ( 1.645 x √{(0.25 + 0.25)/0.1}^2

n > 135.3 or approximately n > 136

Hence,we need at least 136 observations in the sample i.e

n ≥ 136

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Answer:

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viktelen [127]
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Hope this is correct :)
6 0
2 years ago
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