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Sladkaya [172]
3 years ago
14

Explain how you can use multiplication 2+2+2+2

Mathematics
2 answers:
wariber [46]3 years ago
8 0
Since your adding 2 4 times it is 2 times
Firlakuza [10]3 years ago
6 0
2 × 4 is a way to use multipacation
You might be interested in
Please help me please i really need help please help me
Delicious77 [7]

Answer:

The formula of the volume of a cylinder is known as follow

<h2>V= πr²h</h2>

Where

π is 3,14 or 22/7.

d (diameter) is a straight line segment that crosses a center and connects two points on the circle.

r is the radius of the to part of the cylinder.

h is the height.

we can subsitute to our formula knowing that

d = 4cm (turn to r = <em>2cm</em>,because the formula use r) ; h = 11cm

V = πr²h

= 3,14 × 2² × 11

= 3,14 × 4 × 11

= 3,14 × 44

= 138,16 rounded off (138,2cm3) result

5 0
2 years ago
a parallelogram is being painted on the wall of a playroom the parallelogram measures 7.3 meters in length and has a height of 5
Katena32 [7]

Answer:

36.5

Step-by-step explanation:

7 0
3 years ago
El resultado de las operaciones 5/3 + 17 / 51-14 / 21 es
Ket [755]

Answer:

4/3

Step-by-step explanation:

encontrar el mínimo común denominadorienes para que sea mas facil

5/3+17/51-14/21 es 5/3 + 1/3 -2/3 cuando todos son igual de los denominados.

Ahora escribi todos los 3 numeros que iguale lo mismo denominador

5+1-2/3

Ahora solo hace el mas y menos y esta listo

4/3 es lo que pasa cuando haces las operaciones.

4 0
2 years ago
A cylinder has a height that is twice the length of the diameter. The diameter of the cylinder is 10 centimeters. What is the su
siniylev [52]

Answer:

Step-by-step explanation:

Givens

pi = 3.14

d = 10 cm

h = 2*d

Formula

  • The top of the cylinder is a solid circle. So the area of the circle is pi r^2
  • There is both a top and bottom to the circle so the fomula is 2*pi*r^2

  • The surrounding area of the cylinder is the circumference of the circle times the height. The circumference of the circle is 2*pi*r.
  • Then you just multiply by the height.
  • formula = 2*pi * r * h

The combined formula is given below.

SA = 2*pi*r^2  +  2*pi*r * h

Conversions

d = 10 cm

h = 2*10

h = 20 cm

r = d/2

r = 10 / 2

r = 5cm

Solution

SA = 2*pi*r^2  +  2*pi*r * h

SA = 2*3.14*5^2 + 2*3.14*5*20

SA = 157 + 628

SA = 785 cm^2

Answer: The surface area is 785 cm^2

5 0
2 years ago
Please help me!!!!!​ i need full answer.
salantis [7]

Answer:

see explanation

Step-by-step explanation:

Using the sum/ difference → product formula

cos x - cos y = - 2sin( \frac{x+y}{2})sin (\frac{x-y}{2} )

sin x - sin y = 2cos (\frac{x+y}{2} )sin (\frac{x-y}{2} )

Given

(cosA - cosB)² + (sinA - sinB )²

= [ - 2sin(\frac{A+B}{2})sin(\frac{A-B}{2} ) ]² + [ 2cos(\frac{A+B}{2} )sin(\frac{A-B}{2} ) ]²

= 4sin² (\frac{A+B}{2} )sin² (\frac{A-B}{2} ) + 4cos² (\frac{A+B}{2} )sin² ( \frac{A-B}{2} )

= 4sin² (\frac{A-B}{2} )[ sin² ( \frac{A+B}{2} ) + cos² ( \frac{A+B}{2} ) ← sin²x + cos²x = 1

= 4sin² ( \frac{A-B}{2} ) × 1

= 4sin² ( \frac{A-B}{2} ) = right side ⇒ proven

4 0
3 years ago
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