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2 years ago

What is the perimeter of the figure

Mathematics

2 answers:

Sedbober [7]2 years ago

6 0

Answer:

Step-by-step explanation:

user100 [1]2 years ago

5 0

Answer:

68 1/2 yd or 68.5 yd

Step-by-step explanation:

You need to add all of the sides (of the figure) to find out what the perimeter is.

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Two sides of a triangle are 8 m and 9 m in length and the angle between them is increasing at a rate of 0.06 rad/s. Find the rat

Lelechka [254]

<h2>Rate at which area is increasing is 1.08 m²/s.</h2>

Step-by-step explanation:

Area of triangle is with side a and b and angle C between them is given by

A = 0.5 ab SinC

Here we need to find how area changes with a and b fixed and C is changing,

$\frac{dA}{dt}=\frac{d}{dt}\left (0.5 absinC\right )\\\\\frac{dA}{dt}=0.5ab\frac{d}{dt}\left (sinC\right )\\\\\frac{dA}{dt}=0.5abcosC\frac{dC}{dt}$

We have

a = 8 m

b = 9 m

$C=\frac{\pi}{3}rad\\\\\frac{dC}{dt}=0.06rad/s$

Substituting

$\frac{dA}{dt}=0.5\times 8\times 9\times cos\left ( \frac{\pi}{3}\right )\times 0.06\\\\\frac{dA}{dt}=1.08m^2/s$

Rate at which area is increasing is 1.08 m²/s.

4 0

3 years ago

Whats 8+0.3 in standard form and word form

Rudik [331]

8 + 0.3 =

Standard . . . 8.3

Words . . . "eight and three tenths".

3 0

2 years ago

Read 2 more answers

Determine whether the polynomial is a difference of squares and if it is, factor it.

Alexandra [31]

Just by the language difference means subtract,

Y^2-25 is the difference of squares
factored it's the sum and difference of their square roots

(x+5) (x-5)

4 0

3 years ago

4x+ 2( 3 – 3x) = 6 answer

motikmotik

Answer:

Step-by-step explanation:

4x+ 2( 3 – 3x) = 6

4x+6-6x=6

6-2x=6

6-6=2x

0/2=x

x=0

7 0

2 years ago

Read 2 more answers

The sum of two numbers is 92 their difference is 20 find the numbers

Ira Lisetskai [31]

92 - 20 = 72
72 / 2 = 36
36 + 20 = 56
36 + 56 = 92

So 36 and 56 are your answer

6 0

2 years ago