3 years ago

QUESTION 4: BUSINESS DECISIONS [20 MARKS]

Mathematics

1 answer:

Gre4nikov [31]3 years ago

7 0

Answer:

Step-by-step explanation: here u go

You might be interested in

What is the solution of |-1 + x| = 5

nataly862011 [7]

Answer:

6, -4

Step-by-step explanation:

abs(-1+x)=5

-1+x=5 and -1+x=-5

-------------------------

-1+x=5

x=5-(-1)=5+1=6

-------------------

-1+x=-5

x=-5-(-1)=-5+1=-4

4 0

3 years ago

What is the vertex of the parabola? A. (-1,0) B. (0,-3) C. (1,-4) D. (3,0)

-BARSIC- [3]

The vertex of a parabola is its highest or lowest point. Here, it is the lowest point, which happens right at the bottom of the U-shape—at (1, –4). Therefore, the answer is C.

5 0

3 years ago

9mph in still water it takes 5hrs longer to travel 74 miles upstream than downstream find the rate of current and round to neare

prohojiy [21]

Answer:

The rate of current is 2.5 mph.

Step-by-step explanation:

The speed in the water when current is absent is 9 mph.

If the speed of the current is v mph then the upstream speed is (9 - v) mph and the downstream speed is (9 + v) mph.

Now, it takes 5 hours longer to travel 74 miles upstream than down stream, then we can write the equation as

$\frac{74}{9 - v} - \frac{74}{9 + v} = 5$

⇒ $\frac{2v}{81 - v^{2} } = \frac{5}{74}$

⇒ 148v = 405 - 5v²

⇒ 5v² + 148v - 405 = 0

Applying Sridhar Acharya's formula we can write

$v = \frac{-148 + \sqrt{148^{2} - 4(5)(-405) } }{2(5)}$ (Neglecting the negative root)

⇒ $v = \frac{- 148 + 173.2166}{10} = 2.5$ mph (Rounded to the nearest 10th) (Answer)

7 0

3 years ago

The side lengths of the smaller cube is 3 1/2 inches by 3 1/2 inches by 3 1/2 inches

Svetllana [295]

Answer:

28.5 inches long for the smaller cube

7 0

3 years ago

I will give 20 POINTS TO THOSE WHO ANSWER THIS MATH QUESTION RIGHT NOOOO SCAMS PLEASE

yawa3891 [41]

Answer: A

Step-by-step explanation:

3 0

2 years ago