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77julia77 [94]
3 years ago
12

16 POINTS. Find x and y intercepts and show work. I’m looking for number six.

Mathematics
1 answer:
KonstantinChe [14]3 years ago
5 0
What an awful question. 
y = (x^4 - 3x^3 + 4x)^2
y = x^2(x^3 - 3x^2 + 4)^2 
Go to Wolframalpha and put the above equation into the input line.
You see that there are 2 solutions at -1
There are 2 solutions at 0
There are  2 solutions at 2
You know that there are 2 solutions for each because the graph just touches the x axis. I wouldn't both to try and solve this thing using algebra.

that's what the graph would leave you to believe. There are 2 other solutions and they must be imaginary.  

Note to moderator. Wolfram dot com just shows graphs. the work is mine and I'm just using a tool to explain my answer.

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A rock is dropped from the top of a 2000-foot building. After 1 second, the rock is traveling 32 feet per second. After 2 second
alexandr402 [8]

Using the pairs (1,32) and (2,64) the rate of speed is (64-32 / 2-1 = 32 feet per second.

To find the rate of decent you would multiply the rate by time:

The equation is y = 32x

B. Replace x with 15 and solve for y:

Y = 32(15)

Y = 480

The rate of speed is 480 feet per second.

8 0
2 years ago
HELPPP!! A sports team was selling popcorn. They paid $3.50 per bag and sold it for $4 per bag.What is the percent mark up? roun
Papessa [141]

Answer:

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Step-by-step explanation:

8 0
3 years ago
Solve the equation. x2 18x 81 = 25<br> a. 14, 4<br> b. –4, –14<br> c. 14, –14<br> d. –4, 4
Snowcat [4.5K]

Answer:

The answer is the option B

-4,-14

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form ax^{2} +bx+c=0 is equal to

x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}

in this problem we have

x^{2}+18x+81=25  

x^{2}+18x+56=0  

so

a=1\\b=18\\c=56

substitute in the formula

x=\frac{-18(+/-)\sqrt{18^{2}-4(1)(56)}} {2(1)}

x=\frac{-18(+/-)\sqrt{100}} {2}

x=\frac{-18(+/-)10} {2}

x1=\frac{-18+10} {2}=-4

x2=\frac{-18-10} {2}=-14

7 0
3 years ago
Read 2 more answers
a business Spa a lot of 2500 lamps for $50,000 and wants to sell them at a 15% profit how much should each lamp cost
Vedmedyk [2.9K]

the simple equation you have to do is

0.15 x 50,000 or 15% of 50,000 of which both equations will result in 7500

4 0
3 years ago
What is the period of this graph?
SCORPION-xisa [38]

Answer:

Period is time between the two peaks.

Period = 4.114 - 1.870

Period = 2.244 seconds

Step-by-step explanation:

4 0
3 years ago
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