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ANTONII [103]
3 years ago
7

Please help meeee!!!!!!!!

Mathematics
1 answer:
ivanzaharov [21]3 years ago
6 0

Answer:

840

Step-by-step explanation:

This is a good example of permutations. For the first slot on his shelf, Dylan has 7 trophies to choose from. Then 6, 5, and so on. Since he is only fitting 4 trophies on his shelf, we only continue until we have the slots filled. Thus, we have 7\cdot 6 \cdot 5\cdot 4=\boxed{840\:\text{ways}} to do so.

*Note: We do not divide by 4! because in this case, order matters. A different order of the same four books still produces different arrangements, so the order matters.

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PLS PLS PLS!! TIMEDD!!
igomit [66]

Lines l and m are parallel because same-side interior angles are supplementary

From the question, we are to determine the lines we can conclude are parallel

From the given information, we have that

m ∠3 + m ∠4 = 180°

That is,

The measure of angle 3 and the measure of angle 4 are supplementary.

In the diagram,

We can observe that ∠3 and ∠4 are same-side interior angles

NOTE: If interior angles on the same side of the transversal sum to 180, then lines are parallel.

Hence,

Due to the fact that same-side interior angles are supplementary, lines l and m are parallel

Learn more on Parallel lines postulates here: brainly.com/question/9602013

#SPJ1

4 0
1 year ago
A political pollster claims that 55% of voters prefer candidate A. To investigate this claim, a random sample of 75 voters is po
Elanso [62]

The null hypothesis is rejected because the probability is 0.52.

<h3>What are null hypotheses and alternative hypotheses?</h3>

In null hypotheses, there is no relationship between the two phenomena under the assumption that it is not associated with the group. And in alternative hypotheses, there is a relationship between the two chosen unknowns.

A political pollster claims that 55% of voters prefer candidate A.

To investigate this claim, a random sample of 75 voters is polled.

The pollster finds that 39 of those polled prefer candidate A.

He would like to know if the data provide convincing evidence that the true proportion of all voters who prefer candidate A is less than 55%.

This is left tailed test

H₀: p = 0.55

Hₐ: p < 0.55

Then the probability will be

p = 39 / 75

p = 0.52

P-value = 0.3015

Interpretation of P-value:- In a random sample of 75 voters, the chance of getting a sample statistic of 0.52 or below is 0.3015, assuming that the real population proportion of the voter base who chooses candidate A is 0.55.

More about the null hypotheses and alternative hypotheses link is given below.

brainly.com/question/9504281

#SPJ1

4 0
2 years ago
Write the next three terms to the geometric sequence 6,-18,54
Sati [7]
The next 3 terms would be -162, 468, 1457
8 0
3 years ago
At a local restaurant, the amount of time that customers have to wait for their food is normally distributed with a mean of 38 m
Tatiana [17]

Answer:boynjm emwffw

Step-by-step explanation:

boybffqq

5 0
3 years ago
Ore:
Verizon [17]
A .
- If the number after the decimal is 5+ you round up .. if its 4 and below you round down
8 0
4 years ago
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