Draw a set of objects where you can find a fractional part of the group using the total number of objects by using subgroups

Answers

Answer 1

Answer:

Answer:

Draw 20 equilateral triangles such that 5 triangles having sides measure 4 cm , 7 triangles have sides measure 7 cm , 3 triangles have side 10 cm and rest of the triangles have side of measure 5 cm.

This will become a set of equilateral triangles .

Let consider a subgroup set of the original set of having equilateral triangle with side-length of 5 cm.

Then the number of triangle having side-length 5 cm= 20-5-7-3=5

Now, the fraction of the group having triangle with side- length 5 cm is given by:-

$\frac{\text{triangle having side-length 5 cm}}{\text{total triangle}}=(5)/(20)=(1)/(4)$

Answer 2

Answer: We divide the total set into several sub-sets (subgroups) that contain the exact same number of members. This way we know the number of total members by adding the number of total subsets.

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Length -12p + 4 width -7p + 10. Area ?

Simplify the expression using the variable replacements.
2a² – 4bifa= 2andb = 1

Answers

Answer:

= 4

Step-by-step explanation:

2a^2-4b

=2(2)^2-4(1)

=2×4-4

= 8-4

What is (x +2) (x+2) expanded?

Answers

(x+2)(x+2) when expanded is x^2+4x+4

x + 2 + x + 2 im guessing,,

0.77,0.077
7.7,0.7
to GREATEST
least

Answers

7.7, 0.77, 0.7, 0.077

PLEASE HURRY IM BEING TIMED

Answers

Answer: -3

Step-by-step explanation: I GOT YOU BRO

Select the graph that represents the volume of a cube as a function of the length of an edge.

Answers

Answer:

The Graph D) is correct

Step-by-step explanation:

Let, x be length of cube and y is volume of cube

The volume of cube is given by

Volume = $(\textrm{Length of one side of cube})^(3)$

Such that, all the sides of cube are equal

We can write as y= $x^(3)$

Thus, The Graph D) is correct

An elevator is going 180 feet above the first floor each second the 12 feet it descent 12 feet

Answers

a) The change in the height of the elevator each second is negative 12.

b) The complete table for Time and Change in attached at the end.

c) The elevator will take 15 seconds to get to reach the first floor.

d) The height of the basement floor with respect to the first floor 48 feet.

a. The change in the height of the elevator each second is a decrease of 12 feet.

Since it's descending, the change is negative, so the integer is -12.

b. Completing the table attached at the end.

c. Now, the Estimated time

$\text{Estimated time} = \frac{\text{Total height}}{\text{Change in height per second}}$

$\text{Estimated time} = (180)/(-12)$

$\text{Estimated time} = -15 \ \text{seconds}$

However, since time cannot be negative, the negative sign in this case just indicates the direction (descending).

So, the elevator takes 15 seconds to get to the first floor.

d. From the first floor, it takes 4 seconds to reach the basement floor. The elevator descends 12 feet each second.

So, the change in height during these 4 seconds is:

$\text{Change in height} = 4 \ \text{seconds}\cdot (-12 \ \text{feet/second}) = -48 \ \text{feet}$

The height of the basement floor with respect to the first floor is a decrease of 48 feet.

So, the basement floor is 48 feet below the first floor.