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2 years ago

6

brian is driving 324 miles to visit some friends.he wants to get there in 6 hours. How many miles does he need to drive each hou

r?

2 answers:

RideAnS [48]2 years ago

7 0

He will need to drive 54 miles each

lesya [120]2 years ago

5 0

54
324 divided by 6 = 54

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Solve for each equation<br> h divided by 4/9 for h = 5 1/3<br><br> A) 2 10/27<br> B) 10<br> C) 12

arsen [322]

<span>Solve for each equation
h divided by 4/9 for h = 5 1/3

h 16/3
------- = -----------------
4/9 4/9
= 16/3 * 9/4
= 12
answer is </span><span>C) 12</span>

6 0

3 years ago

What is the zero in the quadratic function f(x)= 9x^2-54x-19?

Alex17521 [72]

Answer:

6.33... and 0.333...

Step-by-step explanation:

The quadratic formula is

$x=\frac{-b+\sqrt{b^2-4ac} }{2a}$ .

It is important because while some quadratics are factorable and can be solved not all are. The formula will solve all quadratic equations and can also give both real and imaginary solutions. Using the formula will require less work than finding the factors if factorable. We will substitute a=9, b=-54 and c=-19.

$x=\frac{-b+/-\sqrt{b^2-4ac} }{2a}\\x=\frac{-(-54)+/-\sqrt{(-54)^2-4(9)(-19)} }{2(9)}\\x=\frac{54+/-\sqrt{2916+684} }{18}$

We will now solve for the plus and the minus.

The plus,,,

$x=\frac{54+\sqrt{3600}}{18}\\x=\frac{54+60}{18}\\x=\frac{114}{18}\\x=6.3$

and the minus...

$x=\frac{54-\sqrt{3600}}{18}\\x=\frac{54-60}{18}\\x=\frac{-6}{18}\\x=-0.333...$

8 0

3 years ago

Solve 12|x|−7=8. Does anyone know how to do this?<br>

Travka [436]

Answer:

8+8=16/12

x=16/12, 4/3

4 0

3 years ago

What is −5+(−5r)+10 =-5r+5

VikaD [51]

Answer:

Infinitely many solutions. Each real number is a solution of this equation.

Step-by-step explanation:

-5 + (-5r) + 10 = -5r + 5

5 - 5r = -5r + 5 <em>add 5r to both sides</em>

5 = 5 TRUE

7 0

2 years ago

Read 2 more answers

A collrollary is a statement that can easily provide using a theorem

DedPeter [7]

Im Guessing this is a true and fasle

So the answer would be False

5 0

2 years ago