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love history [14]
3 years ago
11

6x^2-5x+3 - (3x^2+8x-4)

Mathematics
2 answers:
amid [387]3 years ago
5 0
The answer should be 3x^2 -13x+7.
pantera1 [17]3 years ago
3 0

6x {}^{2}  - 5x + 3 - ( {3x}^{2}  + 8x - 4)

= 6 {x}^{2}  - 5x + 3 -  {3x}^{2}  - 8x + 4

= ( {6x}^{2}  -  {3x}^{2} ) + ( - 5x - 8x) + (3 + 4)

=  {3x}^{2}  - 13x + 7

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How does the volume of an oblique cylinder change if the radius is reduced to 2/9 of its original size and the height is quadrup
Novay_Z [31]
New volume is given by:
New volume=(old volume)×(4×2/9×2/9)
simplifying the above we get:
New volume=(old volume)×16/81
Thus the new volume is 16/81 times the old volume
old volume=πr²h
Hence:
Answer:16/81πr²h


4 0
3 years ago
Suppose that y varies inversely with x.Write an equation for the inverse variation Y=4 when x=7
myrzilka [38]

Answer:

If y varies inversely as x, then we write it as:

y = k/x


where k is some constant.


If we multiply both sides of this equation by x we get an equation for k:

k = x*y


We are given that y=4 when x=7, therefore:

k = 7*4 = 28


Put this back into our original equation to get:

y = 28/x



4 0
3 years ago
today only, a sofa is being sold at a 36% discount. The sale price is $560. what was the price yesterday?
pashok25 [27]

Answer:

Step-by-step explanation:

Let yesterday's price  be x

Discount percentage = 36%

Sale price = $ 560

(100-36)% of x = 560

64 % *x = 560

\frac{64}{100}*x=560\\\\x=560*\frac{100}{64}\\\\x=875

Yesterday's price = $ 875

8 0
4 years ago
Which is the best estimate of the sum of the fractions 5/12+5/9
Bumek [7]

Answer:

0.926

Step-by-step explanation:

5/12 as a decimal is 0.416 and

5/9 as a decimal is 0.5 repeating

You just have to turn the fraction into a decimal and

add those together.

So your final equation would be 0.416+0.5

8 0
3 years ago
Read 2 more answers
Lines L and M are parallel lines cut by the transversals line t. which angle is congruent to angle 5
Stells [14]

Answer:

When two lines are cut by a transversal, the pairs of angles on one side of the transversal and inside the two lines are called the consecutive interior angles . If two parallel lines are cut by a transversal, then the pairs of consecutive interior angles formed are supplementary

Step-by-step explanation:

8 0
3 years ago
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