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enyata [817]
2 years ago
11

Solve the equation for all real solutions in the simplest form. -5z^2-3z-11=-6z^2

Mathematics
1 answer:
horsena [70]2 years ago
3 0

Answer:

-3z-11=11z^2

Step-by-step explanation:

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kirill [66]
Let the four numbers be A,B,C,D in ascending order.

The key is in conditions 2 & 3.
B-C=-4, and B+C=0
therefore B=-2, C=2 by solving the two previous equations.

Given that the product of the two greatest numbers is 6, we have C*D=6, or 
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Now since the sum of all the four numbers is -6, we have
A+B+C+D=-6
A-2+2+3=-6
A=-6+2-2-3=-9
Check: we were told smallest divided by greatest = A/D=-9/3=-3  ok.

So the numbers are
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4 0
3 years ago
After getting 5 new rocks, George gave half of his rock collection to Susan. If George gave Susan 36 rocks, which equation could
kirill115 [55]
Let x be the number of rocks that George have at first.

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x + 5
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\frac{x + 5}{2}

Susan got 36 rocks, so the equation is
\frac{x + 5}{2}  = 36
4 0
3 years ago
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The Baldwin family walked four over five of a mile in four over nine of an hour. What is their unit rate in miles per hour?
Ghella [55]
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goblinko [34]

Answer:

See below

Step-by-step explanation:

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We want to isolate the variable, or in other words, get x alone.

The first step is to add 7 to each side to get the constant on one side and the variable on the other

9x-7+7 = 0+7

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The since we are multiplying x by 9, we need to do the opposite to isolate it.  We will divide by 9.  What we do to one side, we do to the other.  Divide both sides by 9

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We have successfully isolated the variable and solved for x.

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Are the two triangles below similar?
djyliett [7]
D I think, idk really I'm just guessing
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