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3 years ago

The Pythagorean theorem can be used for any type of triangle. true or false

Mathematics

1 answer:

notka56 [123]3 years ago

8 0

False. Only right triangles.

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A large cube has a volume of 1 cubic unit. A small cube has a volume of 1 27 of a cubic unit. What is the difference between the

ExtremeBDS [4]

Given:

Volume of Large cube = 1 cubic unit

Volume of small cube = $\dfrac{1}{27}$ cubic unit

To find:

The difference between the edge length of the large cube and the edge length of the small cube.

Solution:

Let the edges of large and small cubes are $a_1$ and $a_2$ respectively.

We know that, volume of a cube is

$V=(edge)^3$

Volume of Large cube = 1 cubic unit

$(a_1)^3=1$

Taking cube root on both sides, we get

$a_1=1$

So, edge of large cube is 1 unit.

Volume of small cube = $\dfrac{1}{27}$ cubic unit

$(a_2)^3=\dfrac{1}{27}$

Taking cube root on both sides, we get

$a_2=\dfrac{1}{3}$

So, edge of large cube is $\dfrac{1}{3}$ unit.

Now, difference between them is

$d=a_1-a-2$

$d=1-\dfrac{1}{3}$

$d=\dfrac{3-1}{3}$

$d=\dfrac{2}{3}$

Therefore, the difference between the edge length of the large cube and the edge length of the small cube is $\dfrac{2}{3}$ unit.

6 0

3 years ago

What are the coordinates of the foci of the conic section shown below?

Naddik [55]

Answer:

((y + 2) ^ 2)/25 - ((x - 3) ^ 2)/4 = 1 O A. ( (3, - 2 plus/minus sqrt(21)) B. (3, - 2 plus/minus sqrt(29)) O B. O c. D . (3 plus/minus sqrt(21), - 2); (3 plus/minus sqrt(29), - 2)

6 0

2 years ago

Find the surface area of each figure. Round your answers to the nearest tenth, if necessary

ss7ja [257]

Answer: 109m^2

Step-by-step explanation:

(5)(8.4)/2 = 21 m^2

(4 ) (21) = 84 m^2

Base = 5^2 = 25 m^2

84 + 25 = 109 m^2

5 0

3 years ago

PLZ HELP ASAP!! MARKING BRAINIEST!! Plot the axis of symmetry and the vertex for this function: h(x) = (x − 5)2 − 7.

jeka94

Answer:

see below

Step-by-step explanation:

h(x) = (x − 5)^2 − 7

This is in vertex form

y = a( x-h)^2 + k

where ( h,k) is the vertex and x=h is the axis of symmetry

( 5,-7) is the vertex and x=5 is the axis of symmetry

8 0

3 years ago

Pls help me with this one -4 divided by - 2/3

Karolina [17]

Answer:

Step-by-step explanation:

$-\frac{4}{1} * -\frac{3}{2} = \frac{12}{2} = 6$

5 0

2 years ago