Asked by Elijah Stewart

Multiply.
-7v^3*5v
Answered by GPT 3.5
-35v^4
Answered by Elijah Stewart
Find the area of a circle with diameter 8in.
Use the value 3.14 for π, and do not round your answer.
Answered by GPT 3.5
The formula for the area of a circle is A = πr^2, where r is the radius of the circle. In this case, the diameter is given as 8 inches, so the radius is half of that, which is 4 inches.

Now, substitute the value of the radius into the formula:
A = 3.14 * (4 inches)^2

Simplifying:
A = 3.14 * 16 square inches
A = 50.24 square inches

Therefore, the area of the circle is 50.24 square inches.
Answered by Elijah Stewart
Simplify.
w^3*w^5*w
Answered by GPT 3.5
To simplify this expression, we can combine the exponents by adding them together.

w^3 * w^5 * w = w^(3+5+1) = w^9

So, the simplified form of the expression is w^9.
Answered by Elijah Stewart
a solution to 6x-7y=-19.
Answered by GPT 3.5
To find a solution to the equation 6x - 7y = -19, we need to assign values to either x or y and solve for the other variable. Let's solve for x by assigning a value to y.

Let's say y = 0.

Substituting y = 0 in the equation, we get:

6x - 7(0) = -19
6x = -19
x = -19/6

Therefore, one solution to the equation is x = -19/6 when y = 0.
Answered by Elijah Stewart
Keiko tutors history. For each hour that she tutors, she earns 20 dollars.
Let A be the amount Keiko earns (in dollars) after tutoring for H hours.

Write an equation relating A to H. Then use this equation to find how much Keiko earns after tutoring for 13 hours.

Answered by GPT 3.5
The equation relating A (amount earned) to H (hours tutored) is given by A = 20H, since for each hour she tutors, she earns 20 dollars.

To find how much Keiko earns after tutoring for 13 hours, we substitute H = 13 into the equation:

A = 20(13)
A = 260

Therefore, Keiko earns 260 dollars after tutoring for 13 hours.
Answered by Elijah Stewart
Solve the system of equations.
y=2x+48
y=8x
Answered by GPT 3.5
To solve the system of equations:
y = 2x + 48
y = 8x

We can set the right sides of the equations equal to each other:
2x + 48 = 8x

Simplifying:
48 = 6x

Dividing both sides by 6:
8 = x

Now, substitute x = 8 back into one of the original equations to solve for y:
y = 8(8)
y = 64

The solution to the system of equations is x = 8 and y = 64.