3 years ago

Find the next number is the sequence 1, 2, 6, 21, 4, 0, ?

Mathematics

1 answer:

bazaltina [42]3 years ago

8 0

Whats the factor u adding up to

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The curved surface area of a right circular cylinder of height 14 cm is 88 cm2. find the diameter of the base of the cylinder

White raven [17]

Answer:

2 cm

Step-by-step explanation:

h = 14 cm

Curved surface area of a right circular cylinder = 88 cm²

2πrh = 88

$2 * \frac{22}{7}*r*14=88\\\\r = \frac{88*7}{2*22*14}\\\\ r =1 \\\\r = 1 cm$

Diameter = 2 * r = 2 * 1 = 2 cm

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2 years ago

Solve for x X^2+6x+9=20

Masja [62]

Answer:

x = 1.47 or x = -7.47

Step-by-step explanation:

x²+6x+9=20

This is a quadratic equation

x²+6x+9-20=0

x²+6x-11=0

Step 1 : Write the quadratic formula

x = -b±√b²-4(a)(c)

Step 2 : Substitute values in the formula

a = 1

b = 6

c = -11

x = -6±√6²-4(1)(-11)

2(1)

x = -6±√80

x = -3 + 2√5 or x = -3 - 2√5

x = 1.47 or x = -7.47

4 0

2 years ago

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Find the volume of this solid.

bija089 [108]

Answer:

Step-by-step explanation:

area of side surface=50×20+20×35=1000+700=1700 m²

voume of solid=1700×12=204,00 m³

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2 years ago

In the following equations, what would you multiply the second equation to

exis [7]

-3 because you could eliminate the 3x by subtracting it by 3x

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Simplify. Assume that all variables are positive.

mihalych1998 [28]

Answer: $-3x^{2} y\sqrt[3]{2y}$

Step-by-step explanation:

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