1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ser-zykov [4K]
3 years ago
5

6/13=3/c what I the answer and show me how you got your answer.show me how you did it.

Mathematics
1 answer:
umka21 [38]3 years ago
4 0

          6             3
        ----      *    ----
        13              c

this is a proportion...so we cross multiply
(6)(c) = (3)(13)
6c = 39...divide both sides by 6
c = 39/6 which reduces to 13/2 or 6 1/2 <== ur answer
You might be interested in
What is the discriminant of Y=9x^2-3x-2???????
klasskru [66]

Answer:

Discriminant= b²-4ac

a = 9 b = -3 and c = -2

Discriminant = (-3)² - 4(9)(-2)

= 9+72

Discriminant = 81

Ans = 81

6 0
3 years ago
Which of the following is the general term for the sequence
umka21 [38]
The first one and it's written as a(-1)(n-1). The parenthesis around the n-2 are important
6 0
3 years ago
A recent poll of 80 randomly selected Californians showed that 38% ( = 0.38) believe they are doing all that they can to conserv
mina [271]
To the nearest whole percent the margin error for this poll would be <span>38% ⁺/₋ 14%. If you want me to explain feel free to ask! </span>
8 0
3 years ago
A multiple choice exam has ten questions. Each question has five possible answers, of which one is correct. Suppose that a stude
Ber [7]

Answer:

8.81% probability that the student answers exactly 4 questions correctly

Step-by-step explanation:

For each question, there are only two possible outcomes. Either he answers it correctly, or he does not. The probability of answering a question correctly 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.

A multiple choice exam has ten questions.

This means that n = 10

The probability of answering any question correctly is 0.20.

This means that p = 0.2

What is the probability that the student answers exactly 4 questions correctly

This is P(X = 4).

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

P(X = 4) = C_{10,4}.(0.2)^{4}.(0.8)^{6} = 0.0881

8.81% probability that the student answers exactly 4 questions correctly

4 0
4 years ago
What is two to the fourth power multiplied by four to the second power?
lutik1710 [3]
2 to the fourth power is technically
2 × 2 × 2 × 2 = 16
4 to the second power is
4 × 4 = 16
The answer is 256
7 0
3 years ago
Other questions:
  • Prove that for all intergers n≥1, P(n,n)= P(n,(n-1)).
    13·1 answer
  • Divide 33 photos into two groups so the ratio is 4 to 7
    7·1 answer
  • You and a friend each roll two dice. what is the probability that you both have the same two numbers
    7·1 answer
  • I NEED HELP ASAP !!!!
    9·1 answer
  • Pamela's age is two times Jiri's age. The sum of their ages is 69 . What is Jiri's age?
    8·1 answer
  • Zorba ate 75% of his carrots. He started with 24 carrots. How many carrots are left?
    13·2 answers
  • HELP PLEASE I NEED THE ANSWER<br> find x
    6·1 answer
  • Pieter wrote and solved an equation that models the number of hours it takes to dig a well to a level of 72 feet below sea level
    13·2 answers
  • Jessica paid $15 for 12 pounds of apples. What unit rate did Jessica pay for the apples?
    15·1 answer
  • Can You answer this Please!!!!
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!