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irinina [24]
3 years ago
5

Write as an expression and simplify:

Mathematics
1 answer:
Bad White [126]3 years ago
5 0

Answer:

(a) The product of the sum of a and b and their difference.

(a+b)\times{(a-b)}\\=a^2-b^2

(b) The tripled product of 6a and b².

3(6a\times{b^2})\\=3(6ab^2)\\=18ab^2

(c) The difference of the squares of 2m and 7n.

(2m)^2-(7n)^2\\=4m^2-49n^2

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Find the product.<br> 3cd^2(6cd + 14cd^2)
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The measurement of a central angle is 75. Find the measurement of <br> in radians
Marina CMI [18]
Circumference = 360 degrees 
<span>Circumference = 2π radians (comes from 2*pi*radius) </span>

<span>Therefore </span>
<span>360 deg. = 2*π radians </span>
<span>180 deg. = π radians </span>
<span>1 deg. = (π/180) radians </span>

<span>75 deg. = 75(π/180) radians </span>
<span>75 deg. = 75π / 180 radians </span>
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<span>however you can simplify 75/180 </span>
<span>both are divisible by 5 </span>
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<span>both are divisible by 3 </span>
<span>75 deg. = 5π/12 radians </span>

<span>We normally don't bother to go further, unless you actually need it as a decimal fraction (in which case, you will have an approximation) </span>

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5 0
3 years ago
3x+-2=-2 will give brainiest if ya answer :D
Vlada [557]

Answer:

x=0

Step-by-step explanation:

3x+-2=-2

Add 2 to each side

3x+-2+2=-2+2

3x = 0

Divide by 3

3x/3 = 0/3

x = 0

4 0
4 years ago
Read 2 more answers
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