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Ghella [55]
2 years ago
11

F(x)=x^2-3x+15 find f(-8)

Mathematics
1 answer:
Vlada [557]2 years ago
8 0

Answer:

103

Step-by-step explanation:

(-8)²-3(-8)+15

64+24+15

103

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Jim, Carla and Tomy are members of the same family. Carla is 5 years older than Jim. Tomy is 6 years older than Carla. The sum o
Blizzard [7]

We are given these three people age below:

  • Jim's age
  • Carla's age
  • Tomy's age

We define the age of Jim as any variable, because the problem doesn't give any specific age. I will define Jim's age as x.

  • Jim's age = x

Next, Carla is 5 years older than Jim. That means if Carla is 5 years older, her age would be x+5.

  • Carla's age = x+5

Then Tomy is 6 years older than Carla. That means the age would be 6+(x+5).

  • Tomy's age = 6+(x+5)

The sum of their three ages is 31 years old. That means we add all these ages and equal to 31.

\large{x + x + 5 + 6 + x + 5 = 31}

Combine like terms and solve for x.

\large{3x + 16 = 31}  \\  \large{3x = 31 - 16} \\  \large{3x = 15} \\  \large{x = 5}

Then we substitute the value of x in ages to find these three people ages.

  • Jim's age = x = 5
  • Carla's age = x+5 = 5+5 = 10
  • Tomy's age = 6+(x+5) = 6+(5+5) = 6+10 = 16.

Answer

  • Jim's age = 5
  • Carla's age = 10
  • Tomy's age = 16
4 0
2 years ago
Solve for x<br><br> Please help me it’s midnight and I cannot fail another math test y’all
7nadin3 [17]

I hope it helps you ❤️❤️❤️❤️

5 0
2 years ago
Simplify the expression 2(2-x)-3x
Nastasia [14]
First thing you should do is <span>Distribute...
</span>=(2)(2)+(2)(−x)+−3x
=4+−2x+−3x
<span>Next is to Combine like terms..
</span>=4+−2x+−3x
=(−2x+−3x)+(4)
<span>Answer..
</span>=−5x+4

Good luck with your studies~ ^//^
<span>
</span>
8 0
2 years ago
A jar contains 99 large red​ marbles, 66 small red​ marbles, 88 large blue​ marbles, and 55 small blue marbles. if a marble is c
aliina [53]
I think it would be the first one
3 0
2 years ago
The value of Bulls Eye stock has decreased 8% each year for the past several years. If in 2010 the stock was worth
Ivenika [448]

Answer:

$ 32.95

Step-by-step explanation:

Cost of Stock at 2010= $ 50

Declining rate each year= 8%

We have to find cost of stock at 2015

Cost of stock after 5 years= $ 50 (1-\frac{8}{100} )^{5}

Value of stock after 5 years=  $ 50 (\frac{100-8}{100} )^{5}

Value of stock after 5 years=  $ 50 (\frac{92}{100} )^{5}

Value of stock after 5 years=  $ 32.95

Hence, the correct answer is $ 32.95

5 0
3 years ago
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