Ask question

Ask question

All categories

3 years ago

5

The equation 9(u – 2) + 1.5u = 8.25 models the total miles Michael traveled one afternoon while sledding, where u equals the num

ber of hours walking up a hill and (u – 2) equals the number of hours sledding down the hill. Which is the value of u?

2 answers:

-Dominant- [34]3 years ago

8 0

U=2.5 is what i got, not sure though.

s2008m [1.1K]3 years ago

5 0

U = .40; distribute the 9 and get the u by itself

You might be interested in

Explain how to use the discriminant to determine the number and type of roots of a quadratic equation.

baherus [9]

The general form of the quadratic equation is :

$ax^2+bx+c=0$

The discriminant is :

$D=b^2-4\cdot a\cdot c$

And the general solution is :

$x=\frac{-b\pm\sqrt[]{D}}{2\cdot a}$

So, there are 3 situations for D

1. D = 0

So, the roots of a quadratic equation are two similar roots

2. D > 0

so, roots of a quadratic equation are two different roots

3. D < 0

so, roots of a quadratic equation are not real, two comlex roots

8 0

1 year ago

F(x) = 2x2<br> Find f(-6)

Sunny_sXe [5.5K]

Is it 2 times x squared (2x^2?

2 * 6^2
2 * 36
72

3 0

3 years ago

If f(2)=pi+7 then f^-1(pi+7)=?

stepladder [879]

Hello,

$f(2)=\pi + 7\\\\
2=f^{-1}\ o\ f(2)=f^{-1} (f(2))=f^{-1}( \pi + 7 })$

6 0

3 years ago

Read 2 more answers

Wxyz is a rectangle at what point does the diagonals intersect

Marianna [84]

The don't intersect because the lines are parallel

6 0

3 years ago

10a3 what is the vocabulary for 10

dangina [55]

Answer:

Coefficient

Step-by-step explanation:

If it is 10a^3 (10 times the variable "a" cubed), then 10 is the coefficient.

3 0

3 years ago