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3 years ago

11

How do I solve 3(2x+1)

2 answers:

guapka [62]3 years ago

7 0

You use distributive property to solve this. You multiply 3 to both 2x and 1. This would give you 6x+3. So, the answer is 6x+3

jonny [76]3 years ago

6 0

to solve 3(2x+1) you need to multiply. so 3 times 2x is 6x and 3 times 1 is 3 making the final answer to be 6x+1

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Mabel is working with other students from her class on a project their teacher gave them. The project is to bake a cake that use

nadya68 [22]

Answer:

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Step-by-step explanation:

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2 years ago

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Suppose you invest $400 at an annual interest rate of 7.6% compounded continuously. How much will you have in the account after

likoan [24]

$\bf ~~~~~~ \textit{Compounding Continuosly Interest Earned Amount}\\\\
A=Pe^{rt}\qquad 
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{original amount deposited}\to& \$400\\
r=rate\to 7.6\%\to \frac{7.6}{100}\to &0.076\\
t=years\to &1.5
\end{cases}
\\\\\\
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3 years ago

Convert this number to a percent. .000103 = _____

tangare [24]

The answer should be 0.0103%.

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3 years ago

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KatRina [158]

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2 years ago

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Imagine that you have developed a genetic test to detect the dominant allele (A) that cause a rare genetic condition. As with mo

s344n2d4d5 [400]

Answer:

Correct option: (B) 1.495%.

Step-by-step explanation:

Denote the events as follows:

<em>X</em> = the test is positive.

<em>A</em> = a person with the dominant allele

The information given are:

$P(X|A)=1\\P (X|A^{c})=0.005\\P(A)=0.01$

According to the law of total probability the probability of an event <em>A, </em>conditional upon the occurrence of another event <em>B</em> is:

$P(A)=P(A|B)P(B)+P(A|B^{c})P(B^{c})$

Use this law to compute the probability of person having a positive result as follows:

$P(X)=P(X|A)P(A)+P(X|A^{c})P(A^{c})\\=(1\times0.01)+(0.005\times(1-0.01))\\=0.01+0.00495\\=0.01495$

The percentage of positive result is: 0.01495 × 100 = 1.495%.

Thus, the percentage of the population will give a positive test is 1.495%.

4 0

3 years ago