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tia_tia [17]
3 years ago
8

Evaluate the numerical expression 9-(3×2)+8

Mathematics
2 answers:
Valentin [98]3 years ago
8 0
9-(3x2)+8
9-(6)+8
3+8
=11
Use the order of operations. Always do the parenthesis first. Then the multiplication and division left to right. finally do the addition and subtraction left to right.
weeeeeb [17]3 years ago
6 0
9-(3×2)+8
9-6+8
3+8
11
hope that helped)
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F(x) = 3x + 6 please help quickly!!!!!!!
Georgia [21]

Given the function, <em>f(x) = 3x + 6,</em> we can solve for f(a), f(a + h) and \frac{(f(a + h) - f(a)) }{h} by substituting their values into f(x) = 3x + 6. We will have the following:

\mathbf{f(a) = 3a + 6}\\\\\mathbf{f(a + h) = 3a + 3h + 6}\\\\\mathbf{\frac{(f(a + h) - f(a)) }{h} = 6}

<em><u>Given:</u></em>

  • f(x) = 3x + 6

<em>We are told to find:</em>

  1. f(a)
  2. f(a + h), and
  3. \frac{(f(a + h) - f(a)) }{h}

1. <em><u>Find f(a):</u></em>

  • Substitute x = a into f(x) = 3x + 6

f(a) = 3(a) + 6

f(a) = 3a + 6

<em>2. Find f(a + h):</em>

  • Substitute x = a + h into f(x) = 3x + 6

f(a + h) = 3(a + h) + 6

f(a + h) = 3a + 3h + 6

<em>3. Find </em>\frac{(f(a + h) - f(a)) }{h}<em>:</em>

  • Plug in the values of f(a + h) and f(a) into \frac{(f(a + h) - f(a)) }{h}

Thus:

\frac{((3a + 3h + 6) - (3a + 6)) }{h}\\\\\frac{(3a + 3h + 6 - 3a - 6) }{h}\\\\

  • Add like terms

\frac{(3a - 3a + 3h + 6 - 6) }{h}\\\\= \frac{3h }{h}\\\\\mathbf{= 3}

Therefore, given the function, <em>f(x) = 3x + 6,</em> we can solve for f(a), f(a + h) and \frac{(f(a + h) - f(a)) }{h} by substituting their values into f(x) = 3x + 6. We will have the following:

\mathbf{f(a) = 3a + 6}\\\\\mathbf{f(a + h) = 3a + 3h + 6}\\\\\mathbf{\frac{(f(a + h) - f(a)) }{h} = 6}

Learn more here:

brainly.com/question/8161429

6 0
3 years ago
NEED HELP ASAP WILL MARK BRAINLET FOR GOOD AND CORRECT ANSWER!!!!
hjlf
Hey! The surface area is 294. Have a great day. :-)
3 0
3 years ago
3) The sum of three consecutive numbers is 72. What are the smallest of these numbers?
34kurt

Answer:

23

Step-by-step explanation:

23 + 24 + 25 = 72

6 0
3 years ago
Formula to calculate variance​
finlep [7]

Answer:

sample variance

the value of the one observation

the mean value of all observations

the number of observations

Step-by-step explanation:

8 0
3 years ago
3 + (-3)^2 - (9 +7)^0
MatroZZZ [7]

Answer:

11

Step-by-step explanation:

3+(−3)^2−(9+7)^0

=3+9−(9+7)^0

=12−(9+7)^0

=12−16^0

=12−1

=11

any number to the power of 0 is ALWAYS 1

3 0
3 years ago
Read 2 more answers
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