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Dima020 [189]
2 years ago
15

Help me ASAP and please please answer correctly!!!!!

Mathematics
2 answers:
ivolga24 [154]2 years ago
7 0

Answer:

Answer A is the correct answer

Step-by-step explanation:

I took the test!

fenix001 [56]2 years ago
5 0

Answer:

the answer is A

Step-by-step explanation:

the dialation wont change the degrees only the size of the shape so it will stay the same

1/2 of 4 is 2

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Need help ASAP please
Kay [80]

Answer:

because the length is 4 feet more than the width

=> the length is x + 4 (feet)

because the base has an area of 21 square feet

=> x(x + 4) = 21

<=> x² + 4x = 21

3 0
3 years ago
A recent survey found that 70% of all adults over 50 wear
lubasha [3.4K]

Answer:

There is an 84.97% probability that at least six wear glasses.

Step-by-step explanation:

For each adult over 50, there are only two possible outcomes. Either they wear glasses, or they do not. This means that 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 = 10, p = 0.7

What is the probability that at least six wear glasses?

P(X \geq 6) = P(X = 6) + `P(X = 7) + P(X = 8) + P(X = 9) + P(X = 10) = 0.8497

There is an 84.97% probability that at least six wear glasses.

5 0
3 years ago
Why can't the input value be negative?
ddd [48]

If you are working with time or days, you can't put in a negative value because if you are doing an experiment, you can't go back in time to do that experiment to gather data. (Time for the most part considered to be an input value so that's why I used it as an example.)

8 0
4 years ago
Which figure has reflection symmetry?
Finger [1]

The first triangle does. That's the right answer.

7 0
4 years ago
Read 2 more answers
X = ?????????????????
Evgen [1.6K]

Answer:

4

Step-by-step explanation:

5 0
3 years ago
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