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Inessa05 [86]
3 years ago
7

Helpppppp againnn plzzz

Mathematics
2 answers:
Karo-lina-s [1.5K]3 years ago
7 0

Answer:

x = 8.17

Step-by-step explanation:

We will be using pythagoras theorem:

a^{2} + b^{2} = c^{2}

=> 4.25^{2} + x^{2} = 9.21^{2}

=> x^{2} = 84.8241 - 18.0625 = 66.7616

=> x = \sqrt{66.7616} = 8.17077719.. = 8.17 (3 s.f)

galina1969 [7]3 years ago
5 0

Answer:

x=8.17

Step-by-step explanation:

uztstskycuvkhifig

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A cylinder has a height of 12 feet and a radius of 5 feet. What is its volume? Use ​ ≈ 3.14 and round your answer to the nearest
beks73 [17]

Answer: The volume is 942 cubic feet   , 942 ft^3

Step-by-step explanation:

The formula for the volume of a cylinder is  v = pi* r^2 * h

Where v is the volume, r is the radius and h is the height.

Input the values for pi, radius, and the height into the formula to solve for the volume.

v = 3.14* (5^2) * 12

V = 3.14* 25 * 12

V = 942

7 0
3 years ago
What fraction is equivalent to 3/10 and has a denominator of 100
rosijanka [135]

Answer:

30/100

Step-by-step explanation:

This should be relatively easy since if the denominator is 100 then x/100 has to = 3/10

Since the denominator 10 has to be 100, you multiply by 10.

3 x 10 = 30

7 0
3 years ago
Read 2 more answers
(this is 6 grade math) PLEASE HELP<br>​
pochemuha
Answer
11a + 4a= 15a
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I think these are the answers please don’t get mad if they are not hope I help :)
8 0
3 years ago
Read 2 more answers
Un bosque de 2 km2 está formado por hayas y pinos. Las hayas ocupan 380.000 m2 ¿Cuántos metros cuadrados ocupan los pinos?
Ivanshal [37]

Answer:

Los pinos ocupan \\ 1620000m^{2} o <em>1 millón seiscientos veinte mil metros cuadrados</em>.

Step-by-step explanation:

Una manera de resolver este problema es la siguiente:

\\ 1km^{2} = 1km * 1km = 1000m * 1000m = 1000000m^{2}

\\ 2km^{2} = 2km * 1km = 2000m * 1000m = 2000000m^{2} = 2 * 10^{6}m^{2}

En palabras, \\ 2km^{2} = 2000000m^{2}, o <em>dos kilómetros cuadrados</em> son iguales a <em>2 millones de metros cuadrados</em>.

Sabemos que:

  1. Estos \\ 2km^{2} = 2000000m^{2} de bosque lo ocupan hayas y pinos, y, adicionalmente,
  2. Las hayas ocupan \\ 380000m^{2}.

De esta manera, <em>la parte que ocupan los pinos es el total del bosque menos el área ocupada por las hayas</em>. Por lo tanto, el área ocupada por los pinos es:

\\ 2000000m^{2} - 380000m^{2}

\\ 1620000m^{2}

¿Cuántos metros cuadrados ocupan los pinos?

Los pinos ocupan, entonces, \\ 1620000m^{2} o <em>1 millón seiscientos veinte mil metros cuadrados</em>.

8 0
3 years ago
The area of a square in square feet is represented by z^(2)+12z+36. Find an expression for a side length of the square.
Gnoma [55]

Answer:

Side is equal to (z+6) feet.

Step-by-step explanation:

A square is a four sided polygon in which all sides are equal, diagonals are equal and each angle is equal to 90°

Area of a square = side × side

Area of a square =z^2+12z+36

Here, write 12z=6z+6z

Therefore,

Area of a square =z^2+6z+6z+36

=z(z+6)+6(z+6)

=(z+6)^2 square feet

So,

side × side =(z+6)^2

This implies side is equal to (z+6) feet.

5 0
3 years ago
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