Which equation is true?9x2 – 25 = (3x – 5)(3x – 5)
9x2 – 25 = (3x – 5)(3x + 5)
9x2 – 25 = –(3x + 5)(3x + 5)
9x2 – 25 = –(3x + 5)(3x – 5)
Answers
Answer :
(1)
Use FOIL method to mulitply (3x – 5)(3x – 5)
(2)
Use FOIL method to mulitply (3x - 5)(3x + 5)
(3)
Use FOIL method to mulitply -(3x + 5)(3x + 5)
(4)
Use FOIL method to mulitply -(3x + 5)(3x - 5)
So equation 2 is true
Answer B
But this is not an equation!!!!! (only an expression)
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Britt hires a personal trainer for the summer.The trainer charges a $40 sign up fee plus$22.50 per hour. If Britt spends a total of$940 over the summer, how many hours didshe train with the trainer?
B)$2,110.00
C)$3,110.00
D)$2,000.04
HEEEELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP!!!! XD
Answers
This is Accounting math, so congrats at being in college level math!
Now let's solve this! :)
The Book Value of an asset is the asset's cost minus the assets accumulated depreciation.
Asset's costs:
Purchase of equipment = $18,000
Shipping costs = $620.00
Installation costs = $590.00
Total = $19,210.00
Assets accumulated depreciation:
depreciation per year=(Cost of equipment-Salvage Value) ÷ Estimated Useful Life = (18000 - 2000) ÷ 10 = $ 1,600 per anum (per year)
Cost: $18,000
Salvage Value: $ 2,000
Estimated Useful Life: 10 years
With this data, we can make the following chart provided below.
Looking at the chart we can conclude that hence, in the 10th year, the accumulated depreciation value is $ 16,000.
So the Book Value at the end of year 10 is...
an asset is the assets cost - the assets accumulated depreciation.
$19,210.00 - $16,000 = $ 3,210
Hope I helped! If you have any other questions or would like further explanation feel free to Pm me! Have a great day!!! :)
Answers
Answer:
$12
Step-by-step explanation:
You have to find what is 20% of 15 which is 3, and then subtract 3 from from 15, which is 12. Real simple!
Answers
Answer:
diagonal of square = d = 9.899
Step-by-step explanation:
let side of square = x
diagonal of square = d
perimeter = P = 28
4 * x = P
x = 28/7
x = 7
By using Pythagorean theorem we get
x^2 + x^2 = d^2
7^2 + 7^2 = d^2
d^2 = 98
d = sqrt(98)
diagonal of square = d = 9.899
Answers
Answer:
y = 7x - 4
Step-by-step explanation:
-4 + 7x = y and y = 7x - 4 are the same thing, there ya go.
Answers
y=amount of adult tickets sold
2 times of children as adult
x=2y
total cost is 800
5x+10y=800
divide both sides by 5
x+2y=160
x=2y
2y+2y=160
4y=160
divie by 4
y=40
x=2y
x=2(40)
x=80
80 children tickets
40 adult tickets
Answers
Answer:
Lalo can talk for 715 minutes more in that month if he has already talked for 785 minutes.
Step-by-step explanation:
Total number of minutes per month lalo has on his cell phone plan = 1500
Number of minutes he has already talked in that month = 785
Number of minutes available to talk = total number of minutes he has - total number of minutes he has already used.
= 1500 - 785
= 715 minutes.
Thus, Lalo can talk for 715 minutes more in that month if he has already talked for 785 minutes.
1500-785=715 more minutes left