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2 years ago

Thirteen is at least the difference of a number v and 1.

Mathematics

2 answers:

Mariulka [41]2 years ago

4 0

13≥v-1 is the formula

Alexxx [7]2 years ago

4 0

Answer: The required value of the number v must be greater than or equal to 14.

Step-by-step explanation: Given that thirteen is at least the difference of a number v and 1.

We are to find the value of the number v.

Since thirteen is at least the difference of a number v and 1, so the difference must be greater than or equal to 13.

Therefore, we can write the inequality and solve as follows :

$v-1\geq 13\\\\\Rightarrow v\geq 13+1\\\\\Rightarrow v\geq 14.$

Thus, the required value of the number v must be greater than or equal to 14.

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3 years ago

Suppose that 70% of college women have been on a diet within the past 12 months. A sample survey interviews an SRS of 267 colleg

Fofino [41]

Answer:

The probability that 75% or more of the women in the sample have been on a diet is 0.037.

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The random variable thus follows a Binomial distribution with parameters n = 267 and p = 0.70.

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The mean of this distribution is:

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The standard deviation of this distribution is: $\sigma_{\hat p}=\sqrt{\frac{p(1-p}{n}} =\sqrt{\frac{0.70(1-0.70}{267}}=0.028$

Compute the probability that 75% or more of the women in the sample have been on a diet as follows:

$P(\hat p \geq 0.75)=P(\frac{\hat p-\mu_{\hat p}}{\sigma_{\hat p}} \geq \frac{0.75-0.70}{0.028}) =P(Z\geq0.179)=1-P(Z$

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$P(\hat p \geq 0.75)=1-P(Z$

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2 years ago

Solve and explain how you did

Sliva [168]

Answer:

We conclude that:

$-\left(9x\right)^0=-1$

Step-by-step explanation:

Given:

$-\left(9x\right)^0$

To determine:

Explain how to solve the expression

Solving the expression

$-\left(9x\right)^0$

Apply the exponent rule

$a^0=1,\:\quad \:a\ne \:0$

so the expression becomes

$-\left(9x\right)^0\:=\:-1$

Therefore, we conclude that:

$-\left(9x\right)^0=-1$

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3 years ago