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aleksandr82 [10.1K]
3 years ago
12

36 : 52 = __:__ a) 18:26 b) 2:3 d) 2:2 d 9:13

Mathematics
1 answer:
kogti [31]3 years ago
3 0
The answer to the following question is letter D
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Figure B is a scaled copy of Figure A.
elixir [45]

Answer:

The scale factor would be 1/2.

Step-by-step explanation:

2 of the sides both are 4 units.

If you go to figure B, it got smaller.

So in this case, you would divide.

On figure B, 2 of the sides are 2 units.

If you did it in reverse, you would get 2 because 2 times 2 is 4.

But we divide, so 4/2 is 2, so the scale factor would be:

1/2

Hope this helped!

And brainliest pls :)

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2 years ago
HELP PLS QUICK MIGHT GIVE BRAINLIST ONLY IF 2 PEOPLE ANSWER!
Afina-wow [57]

Answer:

area = 10 squares units

if points changes

5 0
3 years ago
Change 4700 g into kilograms
MaRussiya [10]

Answer:

1000 grams= 1 kilograms

4700 grams = 4.7 kilograms

<h3><u>4.7 kg</u> is the right answer.</h3>
5 0
3 years ago
A multiple choice test is composed of 10 questions. Each question has four possible answers, only one of the four possible answe
kompoz [17]

Answer:

Let X the random variable of interest "Number of correct anwers on the tet", on this case we now that:

X \sim Binom(n=10, p=0.25)

And the expected value is given by:

E(X) = np =10*0.25 = 2.5

Step-by-step explanation:

Previous concepts

A Bernoulli trial is "a random experiment with exactly two possible outcomes, "success" and "failure", in which the probability of success is the same every time the experiment is conducted". And this experiment is a particular case of the binomial experiment.

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

The probability mass function for the Binomial distribution is given as:  

P(X)=(nCx)(p)^x (1-p)^{n-x}  

Where (nCx) means combinatory and it's given by this formula:  

nCx=\frac{n!}{(n-x)! x!}  

Solution to the problem

Let X the random variable of interest "Number of correct anwers on the tet", on this case we now that:

X \sim Binom(n=10, p=0.25)

And the expected value is given by:

E(X) = np =10*0.25 = 2.5

4 0
3 years ago
Out of 25 attempts, a basketball player scored 17 times. One- half of the missed shots are what percent of the total shots
Alona [7]
16% 25-17=8 8/2=4 4/25=16/100
8 0
3 years ago
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