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aliya0001 [1]
3 years ago
15

{2}x^{2} + 4x - 7" alt="f(x) = {2}x^{2} + 4x - 7" align="absmiddle" class="latex-formula">
find f(4)
Mathematics
1 answer:
sukhopar [10]3 years ago
6 0

For this, plug in 4 into the x placeholder to solve:

f(4)=2*4^2+4*2-7\\ f(4)=2*16+8-7\\ f(4)=32+8-7\\ f(4)=33

<u>In short, f(4) = 33.</u>

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Please explain your answer! Which of the following best represents time preference?
igomit [66]

Answer:

B.  Alex smokes a pack of cigarettes per day even though he knows that he may face poor health down the road because of his smoking habit.

Step-by-step explanation:

Time preference means that the person would like to have temporary but instant satisfaction. In this case, B would be the best choice, for Alex wants to experience the "high" (I guess?) from smoking, even when he knew that there would be health consequences down the road.

In this case, it is not:

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4 0
3 years ago
Can someone explain how to do this
jolli1 [7]

Answer:

20%

Step-by-step explanation:

im not really good at percentages but from what i know you first make it a fraction by adding all the numbers together to get 55(denominator). then for the numerator you take the section that they want(11). 11/55 is equal to 20/100(divide 100 by 55 and multiply the quotient by 11 to get 20). 20/100 is 20%. hope this kinda helps.

7 0
2 years ago
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ExtremeBDS [4]
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6 0
3 years ago
Write a relationship for a function whose k(x) values are 5 more than four times the principal square root of x .
bearhunter [10]

Answer:

k(x)=5+4\sqrt{x}

Step-by-step explanation:

Write a function whose k(x) values are 5 more than four times the principal square root of x.

So,

the principal square root of x =\sqrt{x};

four times the principal square root of x =4\sqrt{x};

5 more than four times the principal square root of x =5+4\sqrt{x};

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4 0
3 years ago
Find the length of a leg of a right triangle (in inches) if the other leg measures 9 in. and the hypotenuse measures 19 in. Roun
kipiarov [429]

Answer:

a = 16.733

Step-by-step explanation:

Since this is a right triangle, we can use the Pythagorean theorem

a^2 + b^2 = c^2

a^2 + 9^2 = 19^2

a^2 = 19^2 - 9^2

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Taking the square root of each side

sqrt(a^2) = sqrt(280)

a = 16.73320053

Rounding to the nearest thousandth

a = 16.733

5 0
3 years ago
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