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JulijaS [17]
3 years ago
8

Please help me. this is hard

Mathematics
1 answer:
allochka39001 [22]3 years ago
7 0
Since it is a square that means each side is equal.
The perimeter is 24, and since there is four sides we would divide it by four to find the length of each side.

24/4 = 6

Each side is 6.
By looking at the picture, one side of the square, is the length of the radius.

The radius of the square is 6.

The only thing left to do is to find the circumference.
The circumference formulas are:

C = \pid
C = 2\pir

We can use the first one Diameter x pi (3.14)
To find the diameter we would just multiply the radius by two.

6 x 2 = 12

Diameter = 12

So multiply it by pi

12 x 3.14 = 37.68
or D 12\pi



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the formula used to find the area of a triangle is A= 1/2bh, where is A of the triangle, b is the length of the base of the tria
aliya0001 [1]
If you are doing a literal equation all you have to do is isolate the h.
First get rid of the fraction by multiplying both sides by 2.
2a=bh
Then divide both sides by b.
2a/b=h
Hope this helps!
7 0
3 years ago
Read 2 more answers
A magazine contains thirteen pages. You
n200080 [17]

Answer:

10

Step-by-step explanation:

because your more likely to open to a page deeper in the magazine

5 0
3 years ago
The Copy Shop has made 20 copies of a document for you. Since the defective rate is 0.1, you think there may be some defective c
Pepsi [2]

Answer:

Binomial

There is a 34.87% probability that you will encounter neither of the defective copies among the 10 you examine.

Step-by-step explanation:

For each copy of the document, there are only two possible outcomes. Either it is defective, or it is not. This means that we can solve this problem using the binomial probability distribution.

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

Of the 20 copies, 2 are defective, so p = \frac{2}{20} = 0.1.

What is the probability that you will encounter neither of the defective copies among the 10 you examine?

This is P(X = 0) when n = 10.

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

P(X = 0) = C_{10,0}.(0.1)^{0}.(0.9)^{10} = 0.3487

There is a 34.87% probability that you will encounter neither of the defective copies among the 10 you examine.

8 0
3 years ago
In the diagram below, what is the measure of the missing angle?
Neporo4naja [7]

Answer:

Answer is 62 degrees.

Step-by-step explanation:

The sum of all angles of a triangle is 180°

x + 70 + 48 = 180

x + 118 = 180

x = 180 - 118

x = 62

4 0
3 years ago
20 POINTS!
Norma-Jean [14]

Answer:

C. x^{3} - 4x^{3} - 24x + 21

Step-by-step explanation:

(x - 7)(x^{2} + 3x - 3)

x(x^{2} + 3x - 3) + -7(x^{2} + 3x - 3)

(x^{3} + 3x^{2} - 3x) + (-7x^{2} + -21x + 21)

x^{3} - 4x^{3} - 24x + 21

5 0
1 year ago
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