What’s the answer ASAP will give brainlist

dem82 [27]

It's the slope of the secant line to f(x) through the points (-3, f (-3)) and (9, f (9)),

$\dfrac{f(9) - f(-3)}{9 - (-3)} = \dfrac{-7 - 1}{12} = -\dfrac8{12} = \boxed{-\dfrac23}$

5 0

3 years ago

Greg the trainer has two solo workout plans that he offers his clients: Plan A and Plan B. Each client does either one or the ot

MA_775_DIABLO [31]

This problem can be solved by algebraic method.
Let
x = the total time spent of all clients in Plan A
y = the total time spent of all clients in Plan B
We represent two variables x and y because there are two plans that won't be happened simultaneously.
On Wednesday, the two workout plans have the total time of 6 hours. We equate
3x + 5y = 6
While on Thursday, the total time is 12 hours. We also equate
9x + 7y = 12

To find x and y, we can use the substitution method. For the first equation, we arrange it in terms of y, that is
5y = 6 - 3x
y = (6 - 3x)/5

Substitute it to the second equation:
9x + (7/5)(6 - 3x) = 12
9x + (42/5) - (21/5)x = 12
Multiply the equation by 5 to cancel the denominator:
45x + 42 - 21x = 60
45x - 21x = 60 - 42
24x = 18
x = 18/24 = 3/4 hours

For y:
3(3/4) + 5y = 6
9/4 + 5y = 6
Multiply the equation by 4 to cancel the denominator:
9 + 20y = 24
20y = 24 - 9
20y = 15
y = 15/20 = 3/4 hours

Hence, each workout plans are done within 3/4 hours (or 45 minutes).

4 0

3 years ago

I need help with this question

MrMuchimi

Part a:
this is really just intuition. you can go either way as long as you back up what you say.
either you think hunter would be faster because he starts out with a lot more money, or you think amado would be faster because he earns a lot more.

part b:
let x be the number of hours hunter works, and y the number that amado works.
they both need to earn 600 dollars.

hunter's money is modelled by 150 + 7.5x
to get 600 dollars
150 + 7.5x = 600
7.5x = 450
x = 60

amado's money is modelled by 12y
to get 600 dollars
12y = 600
y = 50

hunter would need to work 60 hours to make enough money, but amado would only need to work 50, so hunter will take longer.

then say whether this agrees with what you guessed in part a

6 0

3 years ago

What is the vertex of the quadratic function f(c)=(x-8)(x-2)

lisov135 [29]

Answer:dhfkasdlasuyf984r98yt4ewiuhkjsdehfkjldashfkjnklsdgdfbgjudfigjsoaifsdgfljgdfrkjsgldhsagkjdsahfldskjaghkjldhfsagkdjaslhdsafkljhdsakhfdsfhdkjasfdksjhfdskfdshfdskjfkjsdhfkljdsf

Step-by-step explanation:sdfhdskaaaaahlfkjsdhafdkjshfdkjsahfdsjkl;;lewqjrewrmnlfkjdssssssssscjo;lsdq'/d;nfdoljshasfjldksnfdkljscdslfndsofndsjkndsanfkldsaofkljdnasfokjidhasfkdh;.asfkjdsahf;ad.shjifadjsfkldsajfhdsajfkdsjnfdasjfcdslaaa

6 0

3 years ago

A plane traveled 924 miles to Lagos and back. The trip there was with the wind. It took 11 hours. The trip back was into the win

ankoles [38]

Answer:84mph there and 42mph back

Step-by-step explanation:do 924 divided by 11 and 924 by 22

7 0

3 years ago