All categories

1 year ago

Find the real solutions of the equation by graphing. x^3-4x^2-20x=-48The real solutions of the equation are _____.

Mathematics

1 answer:

AnnZ [28]1 year ago

7 0

Given the following equation:

$x^3-4x^2-20x=-48$

We will find the real solutions to the equation by graphing.

We will rewrite the given equation as follows:

$x^3-4x^2-20x+48=0$

The graph of the function will be as shown in the following figure:

As shown the function has 3 real solutions which are the x-intercepts

So, the answer will be:

$x=-4,2,6$

You might be interested in

(5 Marks) 2. Given below are the graphs of: y = -x +1 and y=* 1 -2 -3 2.1. State the rule that represents: (a) A: (b) B:

ZanzabumX [31]

Yes they work how they work to they work

3 0

2 years ago

A missile is fired such that its height above the ground is given by h=-9.8t^2+38.2t+6.5, where t represents the number of secon

trasher [3.6K]

Answer:

4.1 sec

Step-by-step explanation:

-9.8t^2 +38.2t + 6.5 = 0

t = $\frac{-38.2 +-\sqrt{38.2^2{ - 4(-9.8)(6.5)} } }{2(9.8}$

= $\frac{-38.2 +- \sqrt{1459.24 + 254.8} }{-19.6}$

= $\frac{-38.2 +- \sqrt{1714.04} }{-19.6}$

= $\frac{-38.2 +- 41.4}{-19.6}$

= $\frac{-79.6}{-19.6}$

= 4.1

7 0

3 years ago

A recipe for fruit punch calls for 8 cups of Sprite for every 12 cups of fruit juice. What percent of the recipe is made up of f

Tasya [4]

Answer:

y=8x+12

Step-by-step explanation:

8 0

3 years ago

Radar indicates a car is traveling at 90 miles per hour. How fast is the car traveling in kilometers per hour? (Use this convers

kirill115 [55]

You need to write simple equation:
$90\frac{mile}{h}=90*1,609\frac{km}{h}=144,81\frac{km}{h}$

7 0

3 years ago

*EXTRA POINTS ASAP*

Zigmanuir [339]

Answer:

This is geometric sequence and the common ratio is equal to ⅓.

Step-by-step explanation:

A geometric sequence has a common ratio which is gotten when we divide a term by the subsequent term in a sequence. The common difference would be the same for every two consecutive terms we divide by each other.

Thus:

8/64 = ⅛

1/8 = ⅛

Common ratio = ⅛

6 0

3 years ago