Answer:
3miles per hour or 3mph
Step-by-step explanation:
She walks 3 miles in one hour, so..
Answer:
Step-by-step explanation:
V^－1(h)is find inverse function=h / 12π
V=12πh=420π
h=420π/12π=35 feet
Answer:
a=4, b=5/2
Step-by-step explanation:
Assuming the given equation is
We expand the left hand side to get:
If this equation must have infinitely many solutions, then
Also we must have
Put a=4 to get:
What is the area of the triangular base?
8 square feet
What is the length of edge DF?
4 feet
Answer:
B
Step-by-step explanation:
The <u>Elimination Method</u> is the method for solving a pair of linear equations which reduces one equation to one that has only a single variable.
- If the coefficients of one variable are opposites, you add the equations to eliminate a variable, and then solve.
- If the coefficients are not opposites, then we multiply one or both equations by a number to create opposite coefficients, and then add the equations to eliminate a variable and solve.
When multoplying the equation by a coefficient, we multiply both sides of the equation (multiplying both sides of the equation by some nonzero number does not change the solution).
So, option B is not allowed (it is not allowed to multiply only one part of equation)
