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Pie
2 years ago
8

Help!!! f(x)=x+3 g(x) =7x+4

Mathematics
2 answers:
stepan [7]2 years ago
6 0

Answer:

8x+7

Step-by-step explanation:

Simora [160]2 years ago
5 0
Y=0 ➡️ x= - 0.5 or x=4

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2 years ago
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3 years ago
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At the Science Museum, there is an exhibition with 150 displays about energy.
tatuchka [14]
<span>1/5
       
This is a matter of elimination. So let's figure out how many of each display there is. 30% of 150 = 0.30 * 150 = 45 displays about electricity. 2/5 * 150 = 0.40 * 150 = 60 displays about renewable energy 1/10 * 150 = 150/10 = 15 displays about gas. The rest of the displays are about nuclear power. So 150 - 45 - 60 - 15 = 30 displays about nuclear power. Since we want a fraction, we get 30/150 But 30/150 isn't in it's simplest form. The largest number that will evenly divide both 30 and 150 is 30. So divide both the numerator and denominator by 30 (30/30)/(150/30) = 1/5 So 1/5 of the displays are about nuclear power.</span>
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3 years ago
Help with parts A B and C <br> Thank you
Vanyuwa [196]
A will be 7 x 5
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3 years ago
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The equation for a circle is x^2 - 8x + y^2 -8 =0. what is the equation of the circle in standard form?
yKpoI14uk [10]
You have to complete the square on this to get it into standard form of a circle.  Move the 8 over to the other side because that's part of the radius.  Group together the x terms, take half the linear term which is 8, square it and add it in to both sides.  Half of 8 is 4, 4 squared is 16, so add in 16 to both sides.  I'll show you in a sec.  You don't need to do anything to the y squared term.  This just means that the center of the circle does not move up or down, only side to side, right or left.  Here's your completing the square before we simplify it down to its perfect square binomial. ( x^{2} -8x+16)+ y^{2} =8+16.  Now break down the parenthesis into the perfect square binomial and do the addition of the right: (x-4) ^{2} + y^{2}=24.  This is the standard form of a circle that has a center of (4, 0) and a radius of \sqrt{24}
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3 years ago
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