Whats (8x+10) please help me T-T

Mathematics

1 answer:

jekas [21]2 years ago

6 0

Answer:

18x

Step-by-step explanation:

8·x=8x+10=18x

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Beth wants to plant a garden at the back of her house. She has 32m of fencing. The area that can be enclosed is modelled by the

Maksim231197 [3]

Answer:

The maximum area that can be obtained by the garden is 128 meters squared.

Step-by-step explanation:

A represents area and we want to know the maximum.

$A(x)=-2x^2+32x$ is a parabola. To find the maximum of a parabola, you need to find it's vertex. The y-coordinate of the vertex will give us the maximum area.

To do this we will need to first find the x-coordinate of our vertex.

$x=\frac{-b}{2a}{/tex] will give us the x-coordinate of the vertex.Compare [tex]-2x^2+32x$ to $ax^2+bx+c$ then $a=-2,b=32,c=0[tex].So the x-coordinate is [tex]\frac{-(32)}{2(-2)}=\frac{-32}{-4}=8$ .

To find the y that corresponds use the equation that relates y and x.

$y=-2x^2+32x$

$y=-2(8)^2+32(8)$

$y=-2(64)+32(8)$

$y=-128+256$

$y=128$

The maximum area that can be obtained by the garden is 128 meters squared.

8 0

2 years ago

A group of mountain climbers begin an expedition with 250 pounds of food. They plan to eat a total of 12 pounds of food per day.

Advocard [28]

Use the equation y=mx+b where m is the slope (how much it increases each time) and b is the y intercept (starting point).

Your equation would be: y=12x+0 because they eat 12 pounds each day and they start out having eaten 0 pounds.

To solve the equation, plug in the total amount of food for y and use algebra to solve for x:
250=12x
(divide by 12)
(250/12)=x
X=20.833

Their food would last approximately 20 days. (Make sure you round if required)

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3 years ago

For the differential equation s′′+bs′+6s=0, find all the values of b that make the general solution overdamped, those that make

djyliett [7]

Answer:

note:

solution is attached