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patriot [66]
2 years ago
5

NEED HELP ASAP The measures of three line segments are given in each set. Which set of line segments cannot form a triangle? A)

28.6 m, 36.2 m, 65.5 m B) 54.3 m, 55.2 m, 56.1 m C) 15.6 m, 35.8 m, 47.2 m D) 44.8 m, 54.7 m, 84.3 m
Mathematics
2 answers:
Leni [432]2 years ago
8 0
A

28.6 + 36.2= 64.8 < 65.5
timurjin [86]2 years ago
3 0

Answer:

A

Step-by-step explanation:

because the sum of the two smaller sides has to be greater than the longer (3rd)side.

28.6 + 36.2= 64.8 < 65.5

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Eight swimmers participate in a race in how many ways can the swimmers finish in first second and third place an it be answered
Vesnalui [34]

Answer:

336

Step-by-step explanation:

To define whether we use permutations or combinations we must define whether or not the order in which we arrange the results matters. If the order matters we use permutations and if the order doesn't matter we use combinations.

In this case, since we are talking about the first places in a competition, order definitely does matter, so we use permutations. Also in permutations it must be indicated if repetition is allowed, in this case not because the same person cannot be in more than one place.

We use the following formula:

P=\frac{n!}{(n-r)!}

where in this case n is the numer of swimmers and r is the number of places we are considering (1st 2nd and 3rd), which is 3 places.

n = 8

and

r = 3

thus the number of permutations is given bt:

P=\frac{8!}{(8-3)!}\\ \\P=\frac{8!}{5!} \\\\P=\frac{8*7*6*5*4*3*2*1}{5*4*3*2*1}\\ \\P=8*7*6\\P=336

the answer is that there are 336 ways in which the swimmers can finish in first second and third place

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3 years ago
4) A triangle has a base length of 2.5 cm and corresponding height 4.5 cm,
iragen [17]

Answer:

Step-by-step explanation:

7 0
2 years ago
If M is in the interior of ∠RTD, m∠RTM = 40°, and m∠RTD = 65°, then m∠MTD = .
ASHA 777 [7]

Answer:

MTD = 75

Step-by-step explanation:

RTD + RTM + MTD = 180

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            105 + MTD = 180

Subtract 105 from both sides.

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Don't forget to mark me brainliest : )

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Answer: The answer should be that the velocity and acceleration decreases ! :)

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Use the given graph to determine the limit, if it exists.
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<span>"A coordinate graph is shown with a downward sloped line crossing the y axis at the origin that ends at the open point 3, -1" → this is the left side of the graph, so the limit is -1.</span>
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