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Genrish500 [490]
3 years ago
14

Blocks numbered 0 through 9 are placed in a box, and a block is randomly picked.

Mathematics
2 answers:
aliya0001 [1]3 years ago
3 0
<span>Blocks numbered 0 through 9 are placed in a box, and a block is randomly picked.=3/10

</span><span>The probability of picking an odd prime number is . The probability of picking a number greater than 0 that is also a perfect square is=3/10</span>
faust18 [17]3 years ago
3 0

Answer:  2/5 and 3/10

Step-by-step explanation: Sample space S={0,1,2,3,4,5,6,7,8,9}

A:event of picking a odd prime number={1,3,5,7}

P(A)=4/10

      =2/5

B: event of picking a number greater 0 that is also a perfect square={1,4,9}

P(B)=3/10

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Find the similarity ratio and the ratio of the perimeters of two regular octagons with areas of 18 in2 and 50 in2.
Brums [2.3K]
By definition we have that the area of a regular octagon is:
 A = 4.83L ^ 2
 Where, L is the length of the octagon side.
 the similarity ratio = the area ratio.
 We have then:
 similarity ratio = (50) / (18) = 25/9.
 the ratio of the perimeters
 A1 = 4.83L1 ^ 2
 L1 ^ 2 = A1 / 4.83
 L2 ^ 2 = A2 / 4.83
 L1 ^ 2 / L2 ^ 2 = A1 / A2 = 25/9
 L1 / L2 = 5/3
 The perimeter is:
 P1 = 8L1
 P2 = 8L2
 P1 / P2 = 8L1 / 8L2 = L1 / L2 = 5/3
 answer:
 similarity ratio:
 25: 9
 the ratio of the perimeters:
 5: 3
4 0
3 years ago
Read 2 more answers
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Nina [5.8K]
.....................hi.............
8 0
3 years ago
PLEASEE HELP!! I WILL MARK BRAINLIEST!
ycow [4]

The expression in scientific notation is given as follows:

3.5 x 10³.

<h3>What is scientific notation?</h3>

A number in scientific notation is given by:

a \times 10^b

With the base being a \in [1, 10).

For this problem, the expression is given by:

\frac{5 \times 10^2 \times 4.2 \times 10^4}{6 \times 10^3}

When two factors of a multiplication have the same base and different exponent, we <u>keep the base and add the exponents,</u> hence:

10^2 \times 10^4 = 10^6

5 x 4.2 = 21, hence the expression is:

\frac{5 \times 10^2 \times 4.2 \times 10^4}{6 \times 10^3} = \frac{21 \times 10^6}{6 \times 10^3}

When we divide two terms with the same base and different exponents, we keep the base and subtract the exponents, hence:

\frac{21 \times 10^6}{6 \times 10^3} = 3.5 \times 10^3

Which is the simplified expression.

More can be learned about scientific notation at brainly.com/question/16394306

#SPJ1

6 0
1 year ago
Pyrite is also called fool's gold because it is often mistaken for gold. Ryan finds a pyrite crystal that is shaped like a cube
Basile [38]

Answer:

The answer to your question is 64 mm³

Step-by-step explanation:

To calculate the volume of a cube just multiply the length of a side three times.

Data

  cube-shaped crystal

  length = 4 mm

Formula

  Volume = length³

Substitution

  Volume = (4 mm)( 4 mm)(4 mm)

Simplification and result

  Volume = 64 mm³

6 0
3 years ago
Please help please please
monitta

Answer:

x=10

y=-2

(10,-2)

Step-by-step explanation:

If X=10, we can put 10 in for x in the equation.

30 + 5y = 20

Next, we need to solve to find y.

We will get y on its own so we subtract 30 from 20 to get

5y=-10

We then know that 5 goes into -10 -2 times.

y=-2

5 0
3 years ago
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