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3 years ago

Find the area of the shape shown below

Mathematics

2 answers:

Arlecino [84]3 years ago

7 0

Answer: 12.5

Step-by-step explanation:

area= 1/2 (2.5+7.5) 2.5

sorry if its not clear enough i dont really know how else to explain it

omeli [17]3 years ago

3 0

Answer: The area is 12.5 units squared

Step-by-step explanation: The trapezoid shown has the parallel lines (bases a and b) given and the vertical (perpendicular) height also given.

The area of a trapezoid is calculated as ;

Area = [(a + b)/2] x h

Where a is 2.5, b is 7.5 and h is 2.5

Area = [(2.5 + 7.5)/2] x 2.5

Area = [(10)/2] x 2.5

Area = 5 x 2.5

Area = 12.5 units squared

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In Leakwater township, there are two plumbers. On a particular day three Leakwater residents call village plumbers independently

Marianna [84]

Answer:

25% probability that all three residents will choose the same plumbe

Step-by-step explanation:

For each resident, there are only two possible outcomes. Either they choose the first plumbe, or they choose the second. The plumbers are chosen independent of each other. 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.

Each resident randomly chooses one of the two plumbers.

This means that $p = \frac{1}{2} = 0.5$

Three residents:

This means that $n = 3$

What is the probability that all three residents will choose the same plumb

This is P(X = 0)(all choose the second pumble) or P(X = 3)(all choose the first pumble). So

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

$P(X = 0) = C_{3,0}.(0.5)^{0}.(0.5)^{3} = 0.125$

$P(X = 3) = C_{3,3}.(0.5)^{3}.(0.5)^{0} = 0.125$

$p = P(X = 0) + P(X = 3) = 2*0.125 = 0.25$

25% probability that all three residents will choose the same plumbe

4 0

3 years ago

PLZZ HELP ASAP ILL MAKE U BRAINLIEST

user100 [1]

Translation right down c=

4 0

3 years ago

Read 2 more answers

A box of candy had 10 chocolate pieces for every 8 caramel pieces. If the box had 40 caramel pieces, how many chocolate pieces w

kherson [118]

Answer:

If the box had 40 caramel pieces there would be 42 pieces of chocolate

hope it's right and hope it helps you!

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Find the surface area of the cube shown.<br> (_________) square centimeters

Step2247 [10]

Answer:

The answer is: 181.5 square centimeters.

Step-by-step explanation:

The cube has six faces, and each face is a square with sides of length 5.5, so the area of one of this faces is $5.5^2=30.25$ , adding the six faces, we get the answer: $A=6\times 30.25=181.5$