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NikAS [45]
4 years ago
15

Rewrite y^2(9y^2+4y-9) in standard form

Mathematics
1 answer:
Margaret [11]4 years ago
8 0
Y²(9y² + 4y - 9)

Simplify.

(y² · 9y²) + (y² · 4y) + (y² · -9)

Simplify.

9y⁴ + 4y³ - 9y²

~Hope I helped!~


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You are serving bratwurst and hamburgers at your annual picnic. You want at least three bratwursts or hamburgers for each of you
Firlakuza [10]
1.3*3=3.90
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You still have 13.50 left over
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4 years ago
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Ms. Zab gave a group of five students a total of 18.75 liters of water for a science experiment. If each student in the group us
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4 0
4 years ago
Use the method of completing the square to transform the quadratic equation into the equation form (x + p)2 = q.
Gelneren [198K]
<span>divide both sides of the equation by 2 to get: 

(x + 1/4)^2 = -7/16 ***** this is your solution. 

continue further to solve for x if you care to, but the problem did not require you to do this. 

take the square root of both sides of the equation to get: 

x + 1/4 = plus or minus sqrt(-7/16) 

subtract 1/4 from both sides of the equation to get x = -1/4 plus or minus sqrt(-7/16). 

since sqrt(-7/16) is the same as sqrt(7/16) * i, your solution becomes: 

x = -1/4 plus or minus sqrt(7/16) * i. 

your problem was to convert it to the form of (x + p)2 = q. 

the solution to that is: 

</span><span>(x + 1/4)^2 = -7/16 </span><span>subtract 1 from both sides of the equation to get: 

2x^2 + x = -1 

factor out a 2 on the left side of the equation to get: 

2 * (x^2 + x/2) = -1 

complete the squares on x^2 + x/2 to get: 

2 * ((x+1/4)^2 - (1/16)) = -1 

simplify by distibuting the multiplication to get: 

2 * (x+1/4)^2 - 2*(1/16) = -1 

simplify further to get: 

2 * (x+1/4)^2 - 1/8 = -1 

add 1/8 to both sides of the equation to get: 

2 * (x + 1/4)^2 = -7/8 .



</span>
5 0
4 years ago
Read 2 more answers
Please help I have a test tomorow and I just want to know if I'm correct on my answer I got x=2p on question 11,D​
Nataly [62]

Answer:

Yea you correct, you answer is right

8 0
3 years ago
If 9:7 is the ratio, there are here 116 more boys than girls how many total students are there
Natali5045456 [20]
Now, let's say there are "b" boys and "g" gals... ok... well, we know there are 116 more boys than gals..... so, if there are "g" gals then there must be "g + 116" boys.

\bf \cfrac{boys}{girls}\qquad 9:7\qquad \cfrac{9}{7}\implies \cfrac{9}{7}=\cfrac{\stackrel{boys}{g+116}}{\stackrel{girls}{g}}\implies 9g=7g+812&#10;\\\\\\&#10;2g=812\implies g=\cfrac{812}{2}\implies g=\stackrel{girls}{406}

what's the total class?  well is g + b or g + ( g + 116).
8 0
3 years ago
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