3 years ago

Find the value of x.

Mathematics

1 answer:

dolphi86 [110]3 years ago

4 0

Answer: 10

Step-by-step explanation:

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Attachment Mathswatch!!

Travka [436]

Answer:

y=x-1

Step-by-step explanation:

Gradient=1

Rise/run=1/1=1

y=x+c

y intercept=-1

y=x-1

7 0

3 years ago

What’s the product of 0.54(8)

maw [93]

The answer to your problem is 4.32.

6 0

3 years ago

What is 15.60 to 11.70

Scrat [10]

I'm assuming you're subtracting. It would be 3.9. The second one would be 0.65.

8 0

3 years ago

Let f(x) = xe^-x+ ce^-x, where c is a positive constant. For what positive value of c does f have an absolute

Illusion [34]

Answer:

$c=6$

Step-by-step explanation:

The absolute maximum of a continuous function $f(x)$ is where $f'(x)=0$ . Therefore, we must differentiate the function and then set $x=-5$ and $f'(x)=0$ to determine the value of $c$ :

$f(x)=xe^{-x}+ce^{-x}$

$f'(x)=-xe^{-x}+e^{-x}-ce^{-x}$

$0=-(-5)e^{-(-5)}+e^{-(-5)}-ce^{-(-5)}$

$0=5e^{5}+e^{5}-ce^{5}$

$0=e^5(5+1-c)$

$0=6-c$

$c=6$

Therefore, when $c=6$ , the absolute maximum of the function is $x=-5$ .

I've attached a graph to help you visually see this.

7 0

2 years ago

If 48% of the students in a certain college are female and there are 1440 female students, what is the total number of students

Andrews [41]

Answer:

3000 students

Step-by-step explanation:

If 48% of the students are female, and there are 1440 female students, we can set up a percentage proportion, assuming x is the total amount of students.

$\frac{1440}{x} = \frac{48}{100}$

We can use the cross products property to find the value of x.

$1440\cdot100=144000\\\\144000\div48=3000$

Hope this helped!

5 0

3 years ago