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iVinArrow [24]
3 years ago
5

PLEASE HELP ASAP!! A B C D

Mathematics
1 answer:
Virty [35]3 years ago
5 0

Answer:

A.

Step-by-step explanation:

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How are operations with variables like operations with real numbers?
amid [387]

Answer:

The relation between inputs and outputs is given by an equation called the equation of function. Since the outputs are also real values, hence, reasoning by analogy, you may use the arithmetical operation between functions (addition, subtraction, multiplication, division) to produce new functions.

6 0
3 years ago
Can someone please put 2x + 3 into words? this is for algebra
Finger [1]

Answer:

A constant with hidden variable being two times on first term increased by three times.

or,

A hidden age of adult twice adding with variable increasing with three times.

4 0
2 years ago
Find x and y please help.
kherson [118]

Answer:

X=11º

Y=26º

Step-by-step explanation:

77=7x      11=x

180=77+77+y        26=y

6 0
2 years ago
On a multiple-choice test. Abby randomly guesses on all seven questions. Each question
Murrr4er [49]

Answer:

0.173 probability that she gets exactly three questions correct.

Step-by-step explanation:

For each question, there are only two possible outcomes. Either she guesses the correct answer, or she does not. The probability of guessing the correct answer for a question is independent of other questions. So we use the binomial probability distribution to solve this question.

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.

Seven questions:

This means that n = 7

Each question has four choices.

Abby guesses, which means that p = \frac{1}[4} = 0.25

Find the probability to the nearest thousandth, that Abby gets exactly three questions correct.

This is P(X = 3).

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

P(X = 3) = C_{7,3}.(0.25)^{3}.(0.75)^{4} = 0.173

8 0
3 years ago
Notebooks cost $1.39 each. What are the possible numbers of notebooks that can be purchased with $10
murzikaleks [220]

Answer:

7

Step-by-step explanation:

HOPE THIS HELPS

PLZ MARK BRAINLIEST

4 0
3 years ago
Read 2 more answers
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