All categories

3 years ago

9+10 I need help please

Mathematics

2 answers:

Ludmilka [50]3 years ago

7 0

Answer:

Step-by-step explanation:

Hope this helps you!

cricket20 [7]3 years ago

3 0

Answer:20

Step-by-step explanation:

You might be interested in

Identify the graph of ƒ(x) = x2 + 6x – 7 from the choices below.

torisob [31]

f(x) = x^2 + 6x - 7

y = x^2 + 6x - 7

y = (x - 1)(x + 7)

x + 7 = 0

x = -7

x - 1 = 0

x = 1

The x-intercepts are -7 and 1.

Since the leading coefficient is a positive, the graph will point upwards.

So, the graph of the function is D.

5 0

2 years ago

I JUST NEED 4 PLS!!!!!!

Alchen [17]

Answer:

Step-by-step explanation:

When doing 4 divided by 2 you get 2. Looking at the sign it is saying 3 is greater than the number we solve for. Since we solved and got 2 we can double check and ask is 3 greater than 2? Yes it is so that would make the statement correct.

Hope this Helps :)

6 0

2 years ago

Find the equation of the exponential function represented by the table below:

Elden [556K]

Answer:

The equation of the exponential function represented by the table will be:

$f(x)= 2(4)^{x}$

Step-by-step explanation:

We know the equation of exponential function such as

$f(x) = ab^{x}$

Put x=0, and y=2 in the function

$2 = ab^{0}$

$2 = a$

Also x=1, and y=8 in the function

$8 = 2b^{1}$

$b=4$

Thus,

$f(x) = ab^{x}$

$= 2(4)^{x}$

Therefore, the equation of the exponential function represented by the table will be:

$f(x)= 2(4)^{x}$

7 0

2 years ago

Find the derivative of f(x) = negative 9 divided by x at x = -8.

marusya05 [52]

Answer:

$f'(-8)=\frac{9}{64}$

Step-by-step explanation:

Given the function

$f(x)=\frac{-9}{x}$

We can rewrite it as

$f(x)=-9x^{-1}$

Now we can apply the power rule

$f'(x)=9x^{-2}$

Now we can rewrite it

$f'(x)=\frac{9}{x^{2} }$

Now we can plug in x=-8

$f'(-8)=\frac{9}{(-8)^{2} }\\f'(-8)=\frac{9}{64}$

7 0

2 years ago

Food cost for the last 5 months has been 600. What is the average amount spend?

Tresset [83]

Answer:

Step-by-step explanation:

6 0

2 years ago