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wel
3 years ago
9

Factor by using the perfect-square trinomial 64x2 - 144x + 81

Mathematics
1 answer:
Tom [10]3 years ago
4 0

Answer:

the answer is -34

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What is the value of k?
Molodets [167]

Answer:

( {x}^{2}  + 16x + 64) - (x + 8)(x - 4) = k(x + 8) \\ ( {x + 8)}^{2}  - (x + 8)(x - 4) = k(x + 8) \\ (x + 8) - (x - 4) = k \\ k = (x - x) + (8 + 4) \\ k = 12

4 0
2 years ago
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∆ABC is mapped onto ∆A'B'C' which is then mapped onto ∆A"B"C". ∆ABC and ∆A"B"C" are shown in the diagram.
hram777 [196]

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1rotation translation dilation

2dilation

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2 years ago
What is the volume of a hemisphere with a radius of 3.6 cm, rounded to the nearest tenth of a cubic centimeter?
VashaNatasha [74]

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97.7

Step-by-step explanation:

6 0
3 years ago
<img src="https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B2%7D%2B2%2B%3D-2%5C%5C" id="TexFormula1" title="\frac{x}{2}+2+=-2\\" alt="\fr
expeople1 [14]
-8 is your answer so x=-8
5 0
3 years ago
CAN SOME ONE PLS HELP ME THIS IS REALLY HARD
Dmitry_Shevchenko [17]

Answer: 1.25 times as far

Step-by-step explanation:

This problem requires you to find something called the unit rate.

Getting the unit rate for Car A is very simple, and can be found to be 25mi/gal.

To find the unit rate for Car B, simply look at the second row.  Because the car can go 60 miles on 3 gallons of gas, divide both these numbers by 3 to get 20mi/gal.

Then, simply multiply both of these numbers by 11 to get 25 * 11 = 275, and 20 * 11 = 220.

Then, by doing 275/220, you get your answer: 1.25.

Hope it helps :) and let me know if you want me to elaborate.

4 0
2 years ago
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