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WINSTONCH [101]
4 years ago
7

How does a "for every" statement show a ratio comparison? PLEASE ANSWER ITS SO LATE WHERE I AM AND IM TIRED

Mathematics
1 answer:
Neporo4naja [7]4 years ago
7 0
Because it states that for every amount of something there is a certain amount based on something else. For example, for every apple i have, i will have two bananas. This will go into the ratio 1:2. Hope this helps☺
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Find an asymptote of this conic section. 9x^2-36x-4y^2+24y-36=0
ki77a [65]
We will begin by grouping the x terms together and the y terms together so we can complete the square and see what we're looking at. (9x^2-36x)-(4y^2+24y)-36=0.  Now we need to move that 36 over by adding to isolate the x and y terms.  (9x^2-36x)-(4y^2+24y)=36.  Now we need to complete the square on the x terms and the y terms.  Can't do that, though, til the leading coefficients on the squared terms are 1's.  Right now they are 9 and 4.  Factor them out: 9(x^2-4x)-4(y^2-6y)=36.  Now let's complete the square on the x's. Our linear term is 4.  Half of 4 is 2, and 2 squared is 4, so add it into the parenthesis.  BUT don't forget about the 9 hanging around out front there that refuses to be forgotten.  It is a multiplier.  So we are really adding in is 9*4 which is 36.  Half the linear term on the y's is 3.  3 squared is 9, but again, what we are really adding in is -4*9 which is -36.  Putting that altogether looks like this thus far: 9(x^2-4x+4)-4(y^2-6y+9)=36+36-36.  The right side simplifies of course to just 36.  Since we have a minus sign between those x and y terms, this is a hyperbola.  The hyperbola has to be set to equal 1.  So we divide by 36.  At the same time we will form the perfect square binomials we created for this very purpose on the left: \frac{(x-2)^2}{4}- \frac{(y-3)^2}{9}=1.  Since the 9 is the bigger of the 2 values there, and it is under the y terms, our hyperbola has a horizontal transverse axis.  a^2=4 so a=2; b^2=9 so b=3.  Our asymptotes have the formula for the slope of m=+/- \frac{b}{a} which for us is a slope of negative and positive 3/2.  Using the slope and the fact that we now know the center of the hyperbola to be (2, 3), we can solve for b and rewrite the equations of the asymptotes.  3= \frac{3}{2}(2)+b give us a b of 0 so that equation is y = 3/2x.  For the negative slope, we have 3=- \frac{3}{2}(2)+b which gives us a b value of 6.  That equation then is y = -3/2x + 6.  And there you go!
8 0
3 years ago
Jacob invests $5,000 into a savings account that earns 4% interest per year. How much money will he have in his account after 6
vodomira [7]

Answer:

Step-by-step explanation:

5010 i think

8 0
3 years ago
The perimeter of the aqua rectangle is 72 feet. What is the measure of the rectangle’s longest side?
Serga [27]

Answer:

Step-by-step explanation:

72 = 2 *  length + 2 * width

(72 -2*width)/2 = length

36-width = length

we need to know something else about the rectangle

6 0
3 years ago
A pilot is flying a plane 4.5 mi above the earth’s surface.
andriy [413]
X^2 +r^2 = (r+h)^2 re write as x^2 = h^2 + 2*Rh
h = 4.5r = 3959
x^2 = 4.5^2 + 2 *3959 * 4.5
x^2 = 20.25 + 35631
x^2 = 35651.25
x = sqrt(35651.25)
x = 188.8 miles

4 0
3 years ago
The circumference of a circle can be found using the
hichkok12 [17]

Answer:

It is the <em><u>second one</u></em>

Step-by-step explanation:

1st option does not include the number 2 from the equation above,

and 3 and 4, you do not have to divide anywhere in the equation, so those are no possibly correct.

6 0
4 years ago
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