Ask question

Ask question

All categories

3 years ago

13

In a class of 7 there are 2 students who forgot their lunch. If the teacher chooses 2 students what is the probability that both

of them forgot their lunch

1 answer:

Reika [66]3 years ago

4 0

It is about a 28% chance.

You might be interested in

I need help with this , please (50 points) order their

kobusy [5.1K]

Answer:

1+pi/2, 5/2, square root of 12-1, 2.25. Let me know if this is correct!

Step-by-step explanation:

5 0

3 years ago

If (x+2) is a factor of x^3-6x^2+kx+10, k=

Alja [10]

If a binomial $(x-a)$ is a factor of a polynomial, then $a$ is a root of this polynomial.

$(x+2)=(x-(-2)) \Rightarrow a=-2\\\\
(-2)^3-6\cdot(-2)^2+k\cdot(-2)+10=0\\
-8-24-2k+10=0\\
-2k=22\\\
\boxed{k=-11}
$

3 0

3 years ago

2. Which of the following is a quadratic equation?

Liula [17]

Answer:

1 111111111818182818282

6 0

3 years ago

According to the tree diagram below, what is the probability that someone buys a book that is paperback and fiction?

lyudmila [28]

Let

x-----------> the probability that someone buys a book that is paperback

y----------> the probability that someone buys a book that is a fiction

P-----> the probability that someone buys a book that is paperback and fiction

we know that

$x=0.65$

$y=0.45$

$P=x*y$

so

substitute the values

$P=0.65*0.45=0.2925$

therefore

<u>the answer is the option A</u>

$0.2925$

5 0

3 years ago

Read 2 more answers

After watching the squirrels at the local park for several days, Sergei asks his science teacher the following question: "Do mor

Leto [7]

You can download answer here

tinyurl.com/wpazsebu

7 0

3 years ago