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3 years ago

I HAVE ASKED THIS THREE TIMES. PLEASE ANSWER <3

Mathematics

2 answers:

Andru [333]3 years ago

8 0

Answer:

Step-by-step explanation:

For Question 3, we are simply taking an input for the function, as a value of x and solving the equation. For part a, we substitute 3/14 into the first function, and solve it:

f(x) = 7(3/14) + 2

f(x) = 21/14 + 2

f(x) = 49/14

f(x) = 7/2

For part b, we take the input of -3 into the second function and solve the equation:

h(x) = 4(-3)^2

h(x) = 4(9)

h(x) = 36

For Question 4, we are simply solving this equation by isolating the x variable. First, we simplify the equation to 4-5x+15+2x = -2 and simplify this again to -3x+19 = -2. Now, we can subtract 19 from both sides of the equation to get -3x = -21. Lastly, we isolate the x variable by dividing both sides of this equation by -3, to get x = 7.

DochEvi [55]3 years ago

3 0

(This is a short cut if u need it due to the other persons comment) x=7 :)

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Step-by-step explanation:

The expression for the total value of money Jayden has is;

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Total value=(value of nickels×number of nickels)+(value of dimes×number of dimes)

where;

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number of nickels=y, but y=2 x

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replacing;

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Step-by-step explanation:

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