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Pepsi [2]
3 years ago
11

What is the number 2,305,012 written in expanded notation?

Mathematics
2 answers:
Semenov [28]3 years ago
8 0
The expanded form of that number is 2,000,000 + 300,000 + 5,000 + 10 + 2.
OlgaM077 [116]3 years ago
3 0
2,000,000 + 300,000 + 5,000 + 10 + 2 = 2,305,012

I hope that this helped you :3
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irina [24]

Answer:

X=3

Step-by-step explanation:

2*3^{2}

2*9=18

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3 years ago
Which is precisely defined using the undifined terms point and plane
LuckyWell [14K]
A line segment is precisely defined using the undefined terms point and plane. These three terms are undefined terms in geometry. A point has no dimension. A plane has no thickness but extends at all directions. A line has no thickness but extends in one dimension
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3 years ago
Consider the equation y = a - bx. If y = 6 when x = 1 and y = 0 when x = 2, find . = х
Trava [24]

Answer:

see explanation

Step-by-step explanation:

(a)

y = \frac{a}{x} - bx

substitute y = 6 , x = 1 into the equation

6 = a - b → (1)

substitute y = 0 , x = 2 into the equation

0 = \frac{a}{2} - 2b ( multiply through by 2 to clear the fraction )

0 = a - 4b → (2)

multiply (1) by - 4

- 24 = - 4a + 4b → (3)

add (2) and (3) term by term to eliminate b

- 24 = - 3a + 0

- 24 = - 3a ( divide both sides by - 3 )

8 = a

substitute a = 8 into (1) and solve for b

6 = 8 - b ( subtract 8 from both sides )

- 2 = - b ( multiply both sides by - 1 )

2 = b

Then a = 8 and b = 2

(b)

when x = 4

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8 0
2 years ago
Find the volume of each pyramid or come. Round to the nearest tenth if necessary.
Naya [18.7K]

QUESTION 1

The given pyramid has a square base.

The volume of this square pyramid is given by;

V=\frac{1}{3}\times l^2\times h

where l=5ft is the length of a side of the square base.

and h=8ft is the height of the pyramid.

We substitute the values into the formula to get;

V=\frac{1}{3}\times 5^2\times 8 ft^3

V=66.7 ft^3

QUESTION 2

The given pyramid has a rectangular base.

The volume of this rectangular pyramid is given by;

V=\frac{1}{3}\times l\times b\times h

where l=7cm and w=4cm are the length and width  of a side of the rectangular base.

and h=8cm is the height of the pyramid.

We substitute the values into the formula to get;

V=\frac{1}{3}\times 7\times 4\times 8cm^3

QUESTION 3

The given pyramid has a rectangular base.

The volume of this rectangular pyramid is given by;

V=\frac{1}{3}\times l\times b\times h

where l=10in. and w=8in are the length and width  of a side of the rectangular base respectively.

There is a right triangle created inside this pyramid that can help us find the height of this pyramid.

Notice that the base of this right triangle is half the width of the rectangular base (4in.) and the hypotenuse is 14in.

We need to use Pythagoras Theorem to find the height of this pyramid.

h^2+4^2=14^2

h^2+16=196

h^2=196-16

h^2=180

h=\sqrt{180}

h=6\sqrt{5}in.

We substitute the values into the formula to get;

V=\frac{1}{3}\times 10\times 8\times6\sqrt{5}in^3

V=160\sqrt{5}in^3

V=357.8in^3

QUESTION 4

The radius of the base of the given cone is 12m.

The height of the cone is 25m.

The volume of a cone is calculated using the formula;

V=\frac{1}{3}\pi r^2h

We substitute the given values to get;

V=\frac{1}{3}\pi 12^2\times 25m^3

V=3769.9m^3

QUESTION 5

The given cone has diameter 14yd.

The radius is half the diameter, r=7yd

The radius(7yd), the height (h), and the slant height(25yd being the hypotenuse) form a right triangle.

We apply the Pythagoras Theorem again to get;

h^2+7^2=25^2

h^2+49=625

h^2=625-49

h^2=576

h=\sqrt{576}

h=24

The height of the cone is 24yd.

The volume of a cone is calculated using the formula;

V=\frac{1}{3}\pi r^2h

We substitute the given values to get;

V=\frac{1}{3}\pi 7^2\times 24yd^3

V=1231.5yd^3

QUESTION 6

The height of the given cone is 18mm.

The radius can be calculated using the tangent ratio.

\tan(66\degree)=\frac{18}{r}

r=\frac{18}{\tan(66\degree)}

r=8.0141yd

The volume of a cone is calculated using the formula;

V=\frac{1}{3}\pi r^2h

We substitute the given values to obtain;

V=\frac{1}{3}\pi 8.0141^2\times 18mm^3

V=151.1mm^3

7 0
3 years ago
Please answer fast! this is my first question so I think I'm giving 10 points? I'm not sure how it works-
Rudik [331]

Answer:

100kcal

10kcal

1kcal

Step-by-step explanation:

Each level you go up, you only get 10% of the total energy

6 0
3 years ago
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