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2 years ago

4x + 5y = 10

1 answer:

5 0

First leave y by itself. first subtract 4x by both sides. 5y=10-4x. then divide 5 by both sides y= 10-4x/5. y=5-4x/5. when graphing in sert the x into the equation to give you y.

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The length of a rectangle is 1.2 × 10-4 kilometer. the width of the rectangle is 6.25 × 10-5 kilometer.what is the area in squar

Serhud [2]

We have 1.2 × 10^(-4) x 6.25 × 10^(-5 ) = 7,5 x 10^(-9) = 75 x 10^(-10) square kilometers.

3 0

2 years ago

Solve for x: 5x + one third(3x + 6) > 14

MA_775_DIABLO [31]

Answer:

It should be x > 2

Step-by-step explanation:

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2 years ago

Read 2 more answers

What is the y intercept of the quadratic function f(x)=x^2+x-6

saveliy_v [14]

Answer:

$(0,\, -6)$ .

Step-by-step explanation:

On a cartesian plane, the $y$ -intercept of a function is the point where the graph of that function intersects with the $y\!$ -axis.

The $y$ -axis of a cartesian plane is the same as the equation $x = 0$ (that is, the collection of all points with an $x$ -coordinate of $0$ .)

Construct a system of two equations, with one equation representing $y$ -axis and $y = f(x)$ to represent the graph of this function:

$\begin{aligned}\begin{cases} y = x^{2} + x - 6 & \text{for the quadratic function} \\ x = 0 & \text{for the $y$-axis}\end{cases}\end{aligned}$ .

Solve this system for $x$ and for $y$ . If a solution exists, then the $y\!$ -axis and the graph of $y = f(x)$ would indeed intersect. The point $(x,\, y)$ would be the intersection of the $y\!\!$ -axis and the graph of $y = f(x)\!$ .

Substitute the second equation of the system into the first.

$\begin{aligned}\begin{cases} x = 0 \\ y = -6\end{cases}\end{aligned}$ .

Hence, the intersection of the $y$ -axis and the graph of $y = f(x)$ would be $(0,\, -6)$ . By definition, this point would be the $y\!$ -intercept of $y = f(x)\!$ .

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2 years ago

Jessica has bought 18 pounds of dog food. She feeds her dog 2/3 pounds for each meal. For how many meals will the food last?

MAXImum [283]

Answer:

27 days

Step-by-step explanation:

It is a simple division question

18 / (2/3)

Multiply by reciprocal

18 * 3 / 2 = 27

7 0