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yawa3891 [41]
3 years ago
13

Factor and solve the quadratic y=x2+5x-6

Mathematics
2 answers:
vova2212 [387]3 years ago
5 0
The answer is y=-4x+4
Phantasy [73]3 years ago
3 0
This is the answer y=-4x-4
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pychu [463]
As a fraction it would be 8/5 
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3 years ago
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If the equation y=6x+20 represents the line on the graph, determine how much Skyler will have in her savings after 18 months. he
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Skyler would have $128.

Multiply 18 by 6 and then add 20.
3 0
3 years ago
The first three terms of a sequence are -9 -7 -5​
Crank

Answer:

-3

Step-by-step explanation:

7 0
2 years ago
For the region bounded by y=2x​, the​ x-axis, and x=1​, determine which of the following is​ greater: the volume of the solid ge
telo118 [61]

Answer:

The correct answer B) The volumes are equal.

Step-by-step explanation:

The area of a disk of revolution at any x about the x- axis is πy² where y=2x. If we integrate this area on the given range of values of x from x=0 to x=1 , we will get the volume of revolution about the x-axis, which here equals,

\int\limits^1_0 {(pi)y^{2} } \, dx

which when evaluated gives 4pi/3.

Now we have to calculate the volume of revolution about the y-axis. For that we have to first see by drawing the diagram that the area of the CD like disk centered about the y-axis for any y, as we rotate the triangular area given in the question would be pi - pi*x². if we integrate this area over the range of value of y that is from y=0 to y=2 , we will obtain the volume of revolution about the y-axis, which is given by,

\int\limits^2_0 {pi - pix^{2} } \, dy = \int\limits^2_0 {1 - y^{2}/4 } \, dy

If we just evaluate the integral as usual we will get 4pi/3 again(In the second step i have just replaced x with y/2 as given by the equation of the line), which is the same answer we got for the volume of revolution about the x-axis. Which means that the answer B) is correct.

7 0
3 years ago
a cell phone store sells the basic model of a phone for $30 and the upgraded model for $100 when a customer signs a two-year agr
alisha [4.7K]
30b + 100u = 900
5b + 25u = 200....multiply by -6
------------------
30b + 100u = 900
-30b - 150u = - 1200 (result of multiplying by -6)
------------------add
-50u = - 300
u = 6 <== upgrated phones sold

30b + 100u = 900
30b + 100(6) = 900
30b + 600 = 900
30b = 900 - 600
30b = 300
b = 10 <== basic phones sold

8 0
3 years ago
Read 2 more answers
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