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mariarad [96]
3 years ago
15

The expression for finding the perimeter of a octogon with equal sides is8 where s is the length of one side . Evaluate this exp

ression when the length of one side is 6 inches
Mathematics
1 answer:
Sav [38]3 years ago
7 0

Answer:

  48 inches

Step-by-step explanation:

Put the value of the variable where the variable is in the expression and do the arithmetic.

  P = 8s

  P = 8(6 in)

  P = 48 in

The perimeter of the octagon is 48 inches.

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Tan theta is equal to 2- cos theta find the value of sin theta​
artcher [175]

Answer:

sqrt(2)/2

Step-by-step explanation:

Given tan(x)=2-cot(x), find sin(x).

Rewrite in terms of sine and cosine:

sin(x)/cos(x)=2-cos(x)/sin(x)

Multiply both sides by cos(x)sin(x):

sin^2(x)=2sin(x)cos(x)-cos^2(x)

Rewrite cos^2(x) using the identity sin^2(x)+cos^2(x)=1:

sin^2(x)=2sin(x)cos(x)-(1-sin^2(x))

Distribute:

sin^2(x)=2sin(x)cos(x)-1+sin^2(x)

Subtracting sin^2(x) on both sides:

0=2sin(x)cos(x)-1

Add 1 on both sides:

1=2sin(x)cos(x)

Use identity sin(2x)=2sin(x)cos(x) to rewrite right:

1=sin(2x)

Since sin(pi/2)=1, then 2x=pi/2.

Dividing both sides by 2 gives x=pi/4.

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4 0
3 years ago
5x - y = -3 in slope intercept form?
mixas84 [53]
5x-y=-8 | subtract 5x from both sides.


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3 years ago
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(Giving 80 points, Please do not answer if you don't know. The second and third answer are not 4 btw)
Jobisdone [24]

Answer:

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2. 10

3. 14

Step-by-step explanation:

A = -6

B = 0

C = 4

D = 8

1. BC = |0 - 4| = 4

2. AC = |-6 - 4| = |-10| = 10

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or, =( -10/2 , 11/2)

:M = ( -5 , 11/2)

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If he bought all that then he would have spent 265$
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