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3 years ago

Please do all problems for brainlest!

Mathematics

2 answers:

7nadin3 [17]3 years ago

6 0

Answer:

1) GCF(12,32) = 4

2) lcm(12, 32) = 96

3) GCF 6,12,21 = 3

4) LCm 6,12,21 = 84

kati45 [8]3 years ago

6 0

Answer:

1) 4

2) 96

3) 3

4) 36

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Does this graph show a function? Explain how you know.

qaws [65]

Answer:

letter c

Step-by-step explanation:

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8 0

2 years ago

PLEASE HELP ASAP!!!!

AleksAgata [21]

Answer:

see below PLEASE GIVE BRAINLIEST

Step-by-step explanation:

Rate on still sidewalk : 49 ÷ 7 = 7 ft per second

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8 0

3 years ago

On each of three consecutive days the National Weather Service announces that there is a 50-50 chance of rain. Assuming that the

kvasek [131]

Answer:

1. 50%

Step-by-step explanation:

For each day, there are only two possible outcomes. Either it does rain, or it does not, so we use the binomial probability distribution to solve this problem.

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 combinatios 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.

In this problem we have that:

$n = 3, p = 0.5$

We want to find

NNN + RNN + NRN + NNR

This is

$P(X \leq 1) = P(X = 0) + P(X = 1)$

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

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

$P(X = 1) = C_{3,1}.(0.5)^{1}.(0.5)^{2} = 0.375/tex][tex]P(X \leq 1) = P(X = 0) + P(X = 1) = 0.125 + 0.375 = 0.5$

The correct answer is:

1. 50%

3 0

4 years ago

Circle O has an area of 200m^2. Point A and B lie on the circle. Sector AOB has an area of 50m^2. What is the measure of angle A

ikadub [295]

The answer is 45 have a good day

6 0

4 years ago

If sin A= 0.8, find the positive value of cos A

Ahat [919]

Answer:

cosA = 0.6

Step-by-step explanation:

Using the Pythagorean identity

sin²A + cos²A = 1 ( subtract sin²A from both sides )

cos²A = 1 - sin²A ( take the square root of both sides )

cosA = ± $\sqrt{1-sin^2A$

Since only the positive value is required , then

cosA = $\sqrt{1-(0.8)^2}$

= $\sqrt{1-0.64}$

= $\sqrt{0.36}$

= 0.6

6 0

3 years ago

Read 2 more answers