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4 years ago

If a card s drawn from a normal deck of cards, what is the probability that the card will be an ace?

Mathematics

1 answer:

PtichkaEL [24]4 years ago

4 0

1/13. there's 52 cards in a deck and 4 of each card .so 52÷4=13 .1/13

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After how many hours was the temperature at 12 degrees F?

Westkost [7]

Answer:

2 hours

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Quick!!!!!!!!!!!!!!!

Degger [83]

Answer: discrete.

Step-by-step explanation:

Discrete variable

It is a variable whose value is evaluated by counting.

Example: Number of books published in a month.

Continuous variable

It is a variable whose value is evaluated by measuring ( not countable).

Example: Distance: 1.52 m

Since the number of dental visits a randomly chosen person had for the past 5 years is a countable.

here, Variable: Let X =number of dental visits a randomly chosen person had for the past 5 years

So, the random variable described is discrete.

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3 years ago

If -3m + 1 > 7, which of the following is a solution set for m?

Papessa [141]

ANSWER

m < -2

EXPLANATION

We want to find the solution set for m in:

$-3m+1>7$

First, collect like terms:

$\begin{gathered} -3m>7-1 \\ -3m>6 \end{gathered}$

Now, divide both sides by -3. When you divide an inequality by a negative number, the sign changes direction:

$\begin{gathered} \frac{-3m}{-3}>\frac{6}{-3} \\ m$

This means that all values of m must be less than -2.

None of the options contains the correct solution set.

4 0

1 year ago

Which value of a would make the following expression completely factored? X^

ololo11 [35]

Answer:

A. 12

Step-by-step explanation:

Selecting B, C, or D would create a difference of perfect squares since each of these numbers are perfect squares. Additional factoring would then be needed.

$x^2-36 = (x+6)(x-6)\\x^2-49 = (x+7)(x-7)\\x^2-81=(x+9)(x-9)$

But selecting 12 gives $x^2-12$ which cannot be factored. It is factored completely.

4 0

4 years ago

Read 2 more answers

Can someone pease help

Hatshy [7]

ANSWER

$f(1) = - 34$

$f(n) = f(n - 1) + 13$

EXPLANATION

The given sequence is;

-34,-21,-8,5,....

The first term of the sequence is

$f(1) = - 34$

The common difference is

$d = 5 - - 8$

$d = 5 + 8 = 13$

The recursive definition is given by;

$f(n) = f(n - 1) + d$

$f(n) = f(n - 1) + 13$

for n=2,3,4,...

5 0

4 years ago