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3 years ago

Please help me with these

Mathematics

1 answer:

BigorU [14]3 years ago

3 0

go yfihuygfffccijj sghhuusfhhjdugkuyyggtnntguutujj

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The product of two consecutive odd integers is 72. Write a quadratic equation to find the integers,

zimovet [89]

Answer:

$x^2 + x - 72 = 0$

Explanation:

We are given product of two consecutive odd integers is equal to 72.

Let one integer be x , then since these are consecutive and odd so the other integer will be equal to x + 1.

Their product is equal to 72. So,

x * (x + 1) = 72

=> $x^2 + x = 72$

=> $x^2 + x - 72 = 0$ is the required quadratic equation.

5 0

3 years ago

Assume that a procedure yields a binomial distribution with a trial repeated n times. Use the binomial probability formula to fi

Keith_Richards [23]

Answer:

P(X = 12) = 0.0064.

Step-by-step explanation:

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

In this problem we have that:

$n = 30, p = 0.2$

We want P(X = 12). So

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 12) = C_{30,12}.(0.2)^{12}.(0.8)^{18} = 0.0064$

P(X = 12) = 0.0064.

6 0

3 years ago

WILL MARK YOU BRAINLIEST HELP ASAP

Marat540 [252]

Answer:

I believe it is c> 34

Step-by-step explanation:

Correct me if i'm wrong

6 0

3 years ago

Read 2 more answers

150 decreased by 60%

kodGreya [7K]

Hello there the answer to your question would be 60. Since 150-(60%*150) = 150 - 60 *150 = (1-60%)*150 = (100%-60%) * 150= 40% * 150 = 40/100 * 150 = 40 * 150 ÷ 100 = 6000/100 = 60. Hope this helps you out, have a great day!

8 0

3 years ago

What is the value of h in this graph ? F(x)= |x - h|

Misha Larkins [42]

Answer:

$h=4$

Step-by-step explanation:

We know that the vertex(lowest point) of $|x-h|$ is $(h, 0)$ .

By inspection, we can see that the vertex of the graph is $(4, 0)$ .

So, the lowest point of $F(x)=|x-h|$ is $(4, 0)$ , which means $\boxed{h=4}$

8 0

2 years ago

Read 2 more answers