2 years ago

1. Find the derivative of f(x), at x = 10 f(x) = - 5x² + 13x

Mathematics

1 answer:

Serhud [2]2 years ago

6 0

Answer:

-10x+13

Step-by-step explanation:

Im not 100% sure but i tried!

You might be interested in

Evaluate the expression when b = 6 and y = -6<br><br>-b + 4y

Blababa [14]

-30 is the answer

-6+4(-6)
-6+(-24)
-30

7 0

3 years ago

What is 402,388 rounded to the nearest thousand

Annette [7]

The answer is 402,000

5 0

3 years ago

In timed pls help

ICE Princess25 [194]

She would place it before the 4.

5 0

3 years ago

Read 2 more answers

1.Arsenic-74 is used to locate brain tumors. It has a half-life of 17.5 days. 90 mg wereused in a procedure. Write an equation t

Sophie [7]

$1)\text{ }N_t\text{ = 90\lparen}\frac{1}{2})^{\frac{t}{17.5}}$

2) 5.625 mg will be left

Explanation:

1) Half-life = 17.5 days

initial amount of Arsenic-74 = 90 mg

To get the equation, we will use the equation of half-life:

$\begin{gathered} N_t\text{ = N}_0(\frac{1}{2})^{\frac{t}{t_{\frac{1}{2}}}} \\ where\text{ N}_t\text{ = amount remaining} \\ N_0\text{ = initial amount} \\ t_{\frac{1}{2}\text{ }}\text{ = half-life} \end{gathered}$ $N_t\text{ = 90\lparen}\frac{1}{2})^{\frac{t}{17.5}}$

2) we need to find the remaining amount of Arsenic-74 after 70 days

t = 70

$\begin{gathered} N_t=\text{ 90\lparen}\frac{1}{2})^{\frac{70}{17.5}} \\ N_t\text{ = 5.625 mg} \end{gathered}$

So after 70 days, 5.625 mg will be left

4 0

1 year ago

Find each missing angle <br> Please

-BARSIC- [3]

Answer:

m<1=61

m<2=40

m<3=60

m<4=80

m<5=100

Step-by-step explanation:

180/3=60

180/9=20

20x2=40

20x4=80

20x3=60

59+60=119

180-119=61

180-80=100

7 0

2 years ago