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3 years ago

Graph x= -5 ....... .. ...

Mathematics

2 answers:

Alik [6]3 years ago

6 0

Answer:

Srry I can’t graph it but this is how it would look like it would be a horizontal line with the x-intercept of -5

matrenka [14]3 years ago

5 0

Answer:

the line intersects vertically on the point (-5,0)

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⦁ Evaluate ⦁ 6! ⦁ 8P5 ⦁ 12C4

lisabon 2012 [21]

6! = 6 * 5 *4*3*2*1 =720

8p5 = 8*7*6*5*4 = 6720

12C4 = (12p4)/4! = (12*11*10*9)/4*3*2*1 = 495

7 0

4 years ago

Read 2 more answers

What is the slope and y-intercept of y= 2x - 7 ???

OLEGan [10]

The slope-intercept formula is y=mx+b
where m represents the slope and b represents the y-intercept
In this problem, 2 is the slope and -7 is the y-intercept.

6 0

4 years ago

For f(x) = 5x + 1

drek231 [11]

Answer:

A. $f(7) = 5(7) + 1\\\\f(7) = 36$

B. $f^{-1}(x) = \frac{x - 1}{5}$

C. $f^{-1}(7) =\frac{6}{5}$

D. $f(\frac{6}{5}) = 7$

Step-by-step explanation:

A. To solve the first part of the problem we must replace $x = 7$ in the function $f(x) = 5x + 1$

So:

$f(7) = 5(7) + 1\\\\f(7) = 36$

B. In part B we must find the inverse function of $f(x) = 5x + 1$

To find the inverse function do $y = f(x)$

$y = 5x +1$

Now clear the variable x.

$\frac{y - 1}{5} = x$

Replace x with y.

$y = \frac{x - 1}{5}$

Finally

$f^{-1}(x) = \frac{x - 1}{5}$

C. Now we take the inverse function found above and replace $x = 7$

$f^{-1}(7) = \frac{7 - 1}{5}\\\\f(7) = \frac{6}{5}$

D. Now we substitute $x = f(f^{-1}(7))$ in the original function.

$x = f( f^{-1}(7))\\\\f^{-1}(7) = \frac{6}{5}\\\\ x= f(\frac{6}{5} )\\\\f(\frac{6}{5}) = 5(\frac{6}{5}) + 1\\\\f(\frac{6}{5}) = 7$

8 0

4 years ago

Read 2 more answers

A Car can Travel 82 miles on 2 gallons of gasoline. How Far can it travel on 9 gallons?

Tom [10]

Answer:

369 miles

Step-by-step explanation:

82 miles =2 gallons

41 miles = 1 gallon

369 miles = 9 gallons

7 0

3 years ago

Read 2 more answers

Daniel wanted to know his approximate score on the final exam for his mathematics class. His professor hinted that his score was

hammer [34]

Answer: The raw score for Daniel's exam grade is 101.69.

Step-by-step explanation:

For x be any random variable.

Formula for z-score :

$z=\dfrac{x-\mu}{\sigma}$ , where $\mu$ = population mean

$\sigma$ = population standard deviation.

Let x be the raw score for Daniel's exam grade.

As per given , we have

$\mu=90$ , $\sigma=7$ and z= 1.67 , put these values in the above formula , we get

$1.67=\dfrac{x-90}{7}\\\\\Rightarrow\ x-90=7(1.67)=11.69\\\\\Righarrow\ x=11.69+90=101.69$

Hence, the raw score for Daniel's exam grade is 101.69.

8 0

3 years ago