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VLD [36.1K]
3 years ago
12

Given the following functions f(x) and g(x), solve f[g(7)] and select the correct answer below:

Mathematics
2 answers:
kramer3 years ago
8 0

Answer:

the answer is 85

Step-by-step explanation:

Degger [83]3 years ago
7 0
F(g(7))= f(2×7+2)= f(16)= 4×16+21=85

Therefore: the answer is 85

Hope that helps!! 
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How many times does 32 go into 204
jeka94
This question have 2 different answer depending on what law he is stating in this problem
Solution 1
=> 204 / 32 = 6.38 times did 32 goes to 204.
Solution 2
=> 204 - 32 = 172
=> 172 / 32 = 5.38
=> 5.38 * 100% - 538%
6 0
3 years ago
2. The path of a high diver is given by y = + (2x2 – 9x – 56), where y is the height of the diver
timofeeve [1]

Answer:

The diver will be 8 feet from the end of the board when he hits the water.

Step-by-step explanation:

The diver hits the water when y = 0.

To find the distance, we have to find the values of x when y = 0.

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

ax^{2} + bx + c, a\neq0.

This polynomial has roots x_{1}, x_{2} such that ax^{2} + bx + c = (x - x_{1})*(x - x_{2}), given by the following formulas:

x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}

x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}

\bigtriangleup = b^{2} - 4ac

In this problem, we have that:

y = 2x^{2} - 9x - 56

2x^{2} - 9x - 56 = 0

So

a = 2, b = -9, c = -56

Then

\bigtriangleup = b^{2} - 4ac = (-9)^{2} - 4*2(-56) = 529

x_{1} = \frac{-(-9) + \sqrt{529}}{2*2} = 8

x_{2} = \frac{-(-9) - \sqrt{529}}{2*2} = -3.5

It is a horizontal distance, so the answer is a positive value.

The diver will be 8 feet from the end of the board when he hits the water.

7 0
3 years ago
A jetliner cruises 12 miles for every 60 gallons of fuel it uses . If it used 1,200 gallons of fuel how many miles did it cruise
Romashka [77]
60g/12miles = 5g/mile
So, 1200g / 5g = 240 miles
3 0
3 years ago
Find the value of 2 numbers if their sum is 9 and their difference is 1
Sloan [31]
Makes no sense.

p.s i am a fourth grader
5 0
3 years ago
Read 2 more answers
pls quick The cost of 10 ounces of cheese is 99 cents. What is the price of 10 pounds of cheese in dollars?
Gennadij [26K]

the cost in dollars is $15.84

3 0
2 years ago
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