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Musya8 [376]
3 years ago
12

If x-1 divided by 3=k and k=3, what is the value of x? A)2B)4C)9D)10​

Mathematics
1 answer:
bagirrra123 [75]3 years ago
7 0

Answer:D)10

Step-by-step explanation: If x=10, you take away 1 for 9, divide it by three, which is three. As you said before, 3=k, so the answer is D or 10

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What is the value of the function at x = 3?<br><br> Enter your answer in the box.
Ainat [17]
When x is 3, y is 4
To do this, go to the right 3 units and go up until the line intersects with a grid point
At three, y is 4
Hope this helps!
5 0
3 years ago
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Question 15 please and i will mark the brainliest!!! And thank you to whoever answers
Oksanka [162]
<h3>Answer: C) 12</h3>

Explanation:

We have 4 options for the first choice and 3 options for the next. So there are 4*3 = 12 different combos possible. The tree diagram below shows 12 different paths to pick from. For instance, the right-most path has us pick the number 4 and the color yellow.

6 0
3 years ago
Suppose you decided to keep flipping a coin until tails came up, at which
MAVERICK [17]

Answer:

B. 6.3%

Step-by-step explanation:

For each time that the coin is tosse, there are only two possible outcomes. Either it comes up tails, or it does not. The probability of coming up tails on a toss is independent of any other toss. 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.

Fair coin:

Equally as likely to come up heads or tails, so p = 0.5

Probability that the first tails comes up on the 4th flip of the coin?

0 tails during the first three, which is P(X = 0) when n = 3.

Tails in the fourth, with probability 0.5. So

p = 0.5P(X = 0)

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

p = 0.5P(X = 0) = 0.5*(C_{3,0}.(0.5)^{0}.(0.5)^{3}) = 0.0625

0.0625 * 100 = 6.25%

Rounding to the nearest tenth of a percent, the correct answer is:

B. 6.3%

4 0
3 years ago
Please answer this question correctly please answer this question correctly
Yanka [14]

Answer:

\frac{(8+2)^2}{2} = 50

10+5^2-3 * 2^2 = 23

Step-by-step explanation:

\frac{(8+2)^2}{2}

\frac{10^2}{2}

\frac{100}{2}

50

------------------------------

10+5^2-3 * 2^2

10+25-3 * 4

10+25-12

35-12

23

8 0
3 years ago
Need help on 7/5=x/3
Makovka662 [10]

Given the proportion 7/5=x/3, you can cross-multiply to find the value of x.

21=5x.

Divide both sides by 5.

x=4.2.

Hope this helps!

4 0
3 years ago
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