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natali 33 [55]
3 years ago
12

Suppose f(x)=x^2 -8 evaluate f(2)-f(3)​

Mathematics
1 answer:
Westkost [7]3 years ago
8 0

Answer:

f(2)= -4 f(3)= 1

Step-by-step explanation:

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What is the equation of a line that passes through the point (2, 7) and is perpendicular to the line whose equation is y=x/4+5 ?
worty [1.4K]

Answer:

y = -4x+15

Step-by-step explanation:

y=x/4+5 may be presented as y = 1/4 x + 5, where a=1/4, b=5

swapping numerator and denominator and inserting an opposite sign in a=1/4, we have:

1/4 --------> 4/1 -------> -4/1 = -4

y = -4x+n

Point (2,7) means that x=2, y=7 substitute it to the equation y=-4x+n, calculate "n":

7=-4*2+n ------>    7=-8+n ------->   7+8 = n -------> 15=n

substituting n=15 to the equation y=-4x+n, we get finally y=-4x+15


8 0
4 years ago
1.27 as a simplest form
jasenka [17]

Answer:

its already simplest form, if you mean fractions, then the answer is 1 27/100

Step-by-step explanation:

6 0
3 years ago
Evaluate the expression when a=7 and b=4<br><br> 36/b+a
Rus_ich [418]
36/7+4
36/11
36÷11=3.27272727.... Repeating
7 0
4 years ago
decide whether the random variable x is discrete or continuous. x represents the length of time it takes to get to work
FromTheMoon [43]

The given variable is a continuous variable.

<h3>What is continuous variable?</h3>

A quantitative variable can be either continuous or discrete depending on whether it is normally obtained through measurement or counting. A variable is continuous over a range of real values if it can take on any two specific real values and all other real values in between.

<h3>What is mercury thermometer?</h3>

In Amsterdam, physicist Daniel Gabriel Fahrenheit created the mercury thermometer, also known as a mercury-in-glass thermometer. It consists of a glass tube with a small diameter and a mercury bulb attached to it; the bulb contains far more mercury than the tube does.

<h3>According to the information:</h3>

A mercury thermometer was used to take the subject's temperature.

Because of the temperature:

  • Not counting but measuring it.
  • You can use a decimal number to represent its value.
  • As a result, it is open to any value inside an interval.
  • Temperature is therefore a continuous variable.
  • The only format in which discrete values can be stated is as whole numbers.

so

Temperature is a continuous variable,

To know more about continuous variable visit:

brainly.com/question/14591841

#SPJ4

8 0
2 years ago
What is the eighth term in the arithmetic sequence defined by the explicit formula
RideAnS [48]

Answer:

Find out the what is the eighth term in the arithmetic sequence defined by the explicit formula.

a_{n} = 2n + 7

To prove

As given the explicit formula for the arithmetic sequence .

a_{n} = 2n + 7

Put n = 8

a_{8} = 2\times 8 + 7

a_{8} = 16 + 7

a_{8} = 23

Therefore the eighth term in the arithmetic sequence is 23 .




5 0
4 years ago
Read 2 more answers
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