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wolverine [178]
3 years ago
8

Im really stuck can you help?!!​

Mathematics
1 answer:
Ghella [55]3 years ago
6 0

Answer:

Step-by-step explanation:

(36 ÷ 4) - (36÷9) = (9)-(4) = 5

(8*3) -(12) = 24-12 = 12

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The point A,B,C and D represent the complex number Z1,Z2,Z3 and Z4 and O is the origin. If OABC is a parallelogram, and Z1=1+3i
aleksley [76]

Complex numbers are divided into two parts; real and imaginary parts. The value of Z3 is 5+ 8i

Given that:

Z_1 = 1 + 3i

Z_2 = 4 + 5i

Since O is the origin, then:

C = OA + OB

This means that:

Z_3 = Z_1 + Z_2

So, we have:

Z_3 = 1 + 3i + 4 + 5i

Collect like terms

Z_3 = 1 + 4+ 3i  + 5i

Z_3 = 5+ 8i

Hence, complex number Z3 is 5+ 8i

Read more about complex numbers at:

brainly.com/question/18509723

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3 years ago
A bottle of nail Polish holds 0.8 ounce, A bottle of perfume holds 0.45. How many more of nail Polish hold?
Tasya [4]
The nail polish hold 0.35 more ounces than the perfume bottle
8 0
3 years ago
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You take a quiz with 6 multiple choice questions. After you studied your estimated that you would have about an 80 % chance of g
Arada [10]

Answer:

1.15%

Step-by-step explanation:

To get the probability of m  independent events you multiply the individual probability of each event. In this case we have m independent events, each one with the same probability, therefore:

p^{m}

0.8^{20} = 1.15\%

This is a particlar scenario of binomial distribution problem. So the binomial distribution questions are about the number of success of m independent events, where every individual event has the same p probability. In the question we have 20 events and each event has a probability of 80%. The binomial distribution formula is:

\binom{n}{k} * p^{k} * (1-p)^{n-k}

n is the number of events

k is the number of success

p is the probability of each individual event

\binom{n}{k} is the binomial coefficient

the binomial coefficient allows to find the subsets of k elements in a set of n elements.  In this case there is only one subset possible since the only way to get 20 of 20 correct questions is to getting right all questions (for getting 19 of 20 questions there are many ways, for example getting the first question wrong and all the other questions right, or getting second questions wrong and all the other questions right, etc).

\binom{n}{k} = \frac{n!}{k!(n-k)!}

therefore, for this questions we have:

\frac{20!}{20!(20-20)!} * 0.8^{20} * (1-0.8)^{0} = 1.15\%

4 0
3 years ago
Students in Mr. Eaton’s class must choose a person from a list of 30 people and then write an essay about that person. The list
padilas [110]

Answer:

3/10 or 30%

Step-by-step explanation:

the probability of a...

writer = 13/30

painter = 9/30 or 3/10

musician = 6/30 or 1/5

photographers = 2/30 or 1/15

7 0
2 years ago
How is a triangle alike to a square
dimaraw [331]
They both have an area and are both 2d shapes and just shapes in general
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