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3 years ago

select the equation in which the graph of the line has a negative slope, and the Y intercept equals -5.

Mathematics

1 answer:

Reptile [31]3 years ago

7 0

Y= -5X -5

Step-by-step explanation:

Step 1:

From the slope intercept equation

Y=mX + C

m= slope of equation

C=Y-Intercept = -5

Step 2:

Let the Y points be (5,0) and X points be (1,2).

Then the slope becomes (5-0)/(1-2) = -5

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A shoe company needs to create a shoe box...

Naily [24]

Answer:

Step-by-step explanation:

21/7=3

5*3=15 width

3*3=9 height

8 0

2 years ago

Please correct both problems...and if I'm doing something PLEASE HELP,me

Vanyuwa [196]

Answer:

1. g(f(-2)) = -19

2. f(f(-1)) = -1

Step-by-step explanation:

1. g(f(-2)) where f(x) = 5x + 2 and g(x) = 2x-3

you're on the right track! g(f(x)) means that g's x is equal to the function f, in which you would plug in the answer for f (or equation in some cases) and that would be the x term of g. g(f(x)) or (g°f) can be said as "g composed of f"

what i would do first to make it a bit more simpler is plug in -2 in f(x) and then plug in that answer into g(f(x))

f(-2) = 5(-2) + 2 = -10 + 2 = -8

f(-2) = -8

in your steps, you put g(-2) = -8, when it is f(-2) = -8,

what you would do after that is plug in -8 into g(f(x))

g(f(-8)) = g(-8) <-- plug in -8 for x in g(x)

g(-8) = 2(-8) - 3 <-- distribute 2 into -8

-16 - 3 = -19

so g(f(-2)) = -19

2. find f(f(-1)) when f(x) = 8 - x

first you want to solve f(-1)

f(-1) = 8 - (-1) = 9

so f(-1) = 9

again, what you did in this composition is solved for the first function (the inside f), but never plugged in the result into the second function

now we want to plug in the answer 9 into f(x)

f(9) = 8 - (9) = -1

so f(9) = -1

this leaves us with the answer: f(f(-1)) = -1

7 0

3 years ago

At a movie theater, the price of two adult tickets and for children ticket is $40 the price of a daughter gets into trouble to g

den301095 [7]

Answer: The price for one adult ticket is $10 and the price for one child ticket is $7.

Step-by-step explanation:

<h3> The correct exercise is: "At a movie theater, the price of 2 adult tickets and 4 children tickets is 48$. The price of 5 adult tickets and 2 child tickets is 64$. What is the price for one adult and one child?"</h3>

Let be "a" the price (in dollars) for one adult ticket and "c" the price (in dollars) for one child ticket.

Set up a System of equations with the data given in the exercise:

$\left \{ {{2a+4c=48} \atop {5a+2c=64}} \right.$

You can use the Elimination method to solve the System of equations:

1. Multiply the second equation by -2.

2. Add the equations.

3. Solve for "a".

Then:

$\left \{ {{2a+4c=48} \atop {-10a-4c=-128}} \right.\\........................\\-8a=-80\\\\a=\frac{-80}{-8}\\\\a=10$

4. Substitute the value of "a" into any original equation.

5. Solve for "c":

$2(10)+4c=48\\\\4c=48-20\\\\c=\frac{28}{4}\\\\c=7$

8 0

3 years ago

Pep Boys has one on sale for $79.99 and the tax rate is 7.75%. You pay with a Benjamin. How much change will you get back?

nexus9112 [7]

Answer:$13.82

Step-by-step explanation:

$79.99+7.75%=$86.18

$100-$86.18=$13.82

5 0

3 years ago

To win a game you need at least 45 points.Each question is worth 3 points.Write and solve an inequality that represents the numb

KonstantinChe [14]

You need 45
=45
3 points each question correct
The answer is 3x less than or equal to 45

3 0

4 years ago