how many rectangular prism can you make out of 20 snap of cubes


Answers

Answer 1
Answer: 20=1\cdot1\cdot20\n20=1\cdot2\cdot10\n20=1\cdot4\cdot5\n20=2\cdot2\cdot5\n\nAnswer:4\ regular\ prism\n\n1\ *\ 1\ *\ 20\n1\ *\ 2\ *\ 10\n1\ *\ 4\ *\ 5\n2\ *\ 2\ *\ 5

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Find the term named in the problem.
-21, - 13, -5, 3, ...
Find a23

Answers

a(n)=a(1)+(n-1)×d

a(23)=-21+(23-1)×8

a(23)=-21+(22)×8

a(23)=-21+176

a(23)=155

And we're done....

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There is a 0.23 probability that a typical convenience store customer buys gasoline. The probability that a customer buys groceries is 0.76 and the conditional probability of buying groceries given that the customer buys gasoline is 0.85.a) Find the probability that a typical customer buys both gasoline and groceries.

Answers

Answer:

The probability that a typical customer buys both gasoline and groceries, P(Ga n Gr) = 0.1955

Step-by-step explanation:

Let the probability that a customer guys groceries be represented by P(Gr) and that of buying gasoline be P(Ga)

Given

P(Gr) = 0.76

P(Ga) = 0.23

P(Gr|Ga) = 0.85

For mutually exclusive events,

P(B|A) = (P(B n A))/P(A)

P(Gr|Ga) = (P(Gr n Ga))/P(Ga)

P(Gr n Ga) = P(Gr|Ga) × P(Ga)

P(Gr n Ga) = 0.85 × 0.23 = 0.1955

Hope this Helps!!!!

The angles of a rectangle are equal. always sometimes never

Answers

The angles of a rectangle are equal ALWAYS.

The rectangle has 4 angles, each angle is a right angle or has a measurement of 90°. Total of all interior angle is 360°.

Just like a rectangle, a square has an angle that is always equal because its angles are all right angles. 


Some radioisotopes with the longest half-lives can remain radioactive for ________ of years.A. billons
B. millions
C. thousands
D. tens of thousands

Answers

A: billions of years :) 
Tellerium -128's half life is longer than she existence of the universe! 
xenon- 136 has a half life of 10^21 years.

1- Find the surface area and volume of each solid figure.2-Show the equations you used.




PLEASE HELP!!!!!!! 20 points

Answers

Answer:

Volume

Figure 1 = 56 cube units

figure 2 = 60 cube units

figure 3 =72 cube units

Surface area

Figure 1 = 100 square units

figure 2 = 104 square units

figure 3 =108 square units

Step-by-step explanation:

From the all figure we can see that each figure made up of unit cubes

Figure 1

Surface area

Large cuboid portion =2 x (6 x 2 ) +  (6 x 4) + 2 x(4 x 2) + 16

  = 24 + 24 + 16 + 16 = 80 unit square

Small cuboid portion = (4 x 2) + (2 x 2) + (4 x 2) = 8 + 4 + 8 = 20

Total surface area = 80 + 20 = 100 unit square

Volume

Small cuboid = 4 x 2 = 8

Large cuboid = 6 x 4 x 2 = 48 cube unit

Total volume = 48 + 8 = 56 cubs units

Figure 2

Surface area

Total surface area =24 + 18 + 36 + 20 + 6 = 104 unit square

Volume

Small cuboid = 6 x 2 = 12

Large cuboid = 6 x 4 x 2 = 48 unit square

Total volume = 48 + 12 = 60 cube units

Figure 3

Surface area

Total surface area = 48 + 36 + 24 = 108 square units

Volume

Total volume = 6 x 4 x 3 = 72 cube units

Find the simplified form of the expression. Give your answer in scientific notation.(9x10^5)(6x10^-7)

Answers

5.4*10^-1

that's the answer in scientific notation

I would say the simplified form would be 20×10^-7