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Galina-37 [17]
3 years ago
14

What is the order of rotational symmetry for the figure? A. 3 B. 1 C. 2 D. 4 or more

Mathematics
2 answers:
Anastasy [175]3 years ago
4 0

Answer:

This rotational symmetry has 4 or more order .

OAmalOHopeO

Advocard [28]3 years ago
4 0

9514 1404 393

Answer:

  B.  1

Step-by-step explanation:

The figure has no symmetry, so only maps to itself with 360° of rotation.

The order of rotational symmetry is 1.

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I need some help with this calculus 1 implicit diffrention problem?
katen-ka-za [31]

Answer:

y" = -24 / y³

Step-by-step explanation:

6x² + y² = 4

Take the derivative of both sides with respect to x.

12x + 2y y' = 0

Again, take the derivative of both sides with respect to x.

12 + 2y y" + y' (2y') = 0

12 + 2y y" + 2(y')² = 0

Solve for y' in the first equation.

2y y' = -12x

y' = -6x/y

Substitute and solve for y":

12 + 2y y" + 2(-6x/y)² = 0

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12 + 2y y" + 72x²/y² = 0

6y² + y³ y" + 36x² = 0

y³ y" = -36x² − 6y²

y" = (-36x² − 6y²) / y³

Solve for y² in the original equation and substitute:

y² = 4 − 6x²

y" = (-36x² − 6(4 − 6x²)) / y³

y" = (-36x² − 24 + 36x²) / y³

y" = -24 / y³

7 0
3 years ago
Which calculation should be used to calculate s9 for the arithmetic sequence an=3n-1
Ganezh [65]

Answer: Choice A

S9 = (9/2)*(2+26)

===============================================

The formula is

Sn = (n/2)*(a1+an)

where

Sn = sum of the first n terms (nth partial sum)

n = number of terms

a1 = first term

an = nth term

In this case,

n = 9

a1 = 2 (plug in n = 1 into the formula an = 3n-1 and simplify)

an = a9 = 26 (plug n = 9 into the formula an = 3n-1 and simplify)

So,

Sn = (n/2)*(a1+an)

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will help us find the sum of the first 9 terms of this arithmetic sequence

7 0
2 years ago
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olchik [2.2K]

Answer:

(y^2+3y-28)/(4y^2-15y-4)

Step-by-step explanation:

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= (y+7)(y-3)/(y-4)(4y+1)

= (y^2+3y-28)/(4y^2-15y-4)

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Now, to know the consumption of 50 Americans in one week, we will simply multiply the consumption of one American by 50 as follows:
consumption of 50 Americans = 0.38356 * 50 = 19.18 gallons/week
3 0
3 years ago
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