3 years ago

What equation is equivalent to 9x - 3 = 729

Mathematics

2 answers:

Alexus [3.1K]3 years ago

7 0

Answer:

hope it helps

Step-by-step explanation:

The answer is 9^x-3=9^3

PolarNik [594]3 years ago

5 0

Answer:

First part: B 9^x - 3 = 9^3

Second part: x = 6

Step-by-step explanation:

This is correct on EDGE 2020

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Suppose that in a random selection of 100 colored candies, 26% of them are blue. The candy company claims that the percentage

quester [9]

Answer: a) -0.2252, b) 0.8219

Step-by-step explanation:

Since we have given that

Sample size n = 100

Probability that candies are blue = p= 0.26

Probability that company claims that it is blue candy = P = 0.27

So, Q = 1-P= 1-0.27 = 0.73

So, Null hypothesis : $H_0:p=P$

Alternate hypothesis : $H_1:p\neq P$

So, the test statistic would be

$z=\dfrac{p-P}{\sqrt{\dfrac{P.Q}{n}}}\\\\z=\dfrac{0.26-0.27}{\sqrt{\dfrac{0.27\times 0.73}{100}}}\\\\z=-0.2252$

Since α = 0.05

So, critical value of z = 1.96

p-value = P(Z>Z(calculated)

Using the excel function , we get that

$P(z>0.2252)\\\\=2\times 0.410.911845\\\\=0.8219$

Hence, a) -0.2252, b) 0.8219

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3 years ago

What is the common difference d of the sequence?

tangare [24]

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4 years ago

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There are 30 female performers in a dance recital. The ratio of men to women is 4:5. How many men are in the dance recital?

KATRIN_1 [288]

24 you take 30 and multiply it by 4 and then divide it by 5

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4 years ago

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Dima020 [189]

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3 years ago