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alexira [117]
3 years ago
10

at noon a train leaves Washington DC headed for Charleston South Carolina a distance of 500 Miles the train traveling at a speed

of 44 miles at 1 p.m. a second train leaves Charleston heading for Washington DC traveling 32 miles an hour how long after the train view Charleston where the trains pass each other​
Mathematics
1 answer:
Svetlanka [38]3 years ago
6 0
Is this a question? if it is it’s x over the x times 45
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Help easy math!!!!!!!!! (:
7nadin3 [17]
H=3v/b should be the correct answer
3 0
4 years ago
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Write a polynomial function that meets the stated conditions.The zeros are −1, 2, and 7.
kondaur [170]

Answer:

A polynomial function that meet the conditions is x³ - 8x² + 5x + 14 = 0

Step-by-step explanation:

Hi there!

Let´s start writting a generic factored function. In this case, the function has 3 zeros so that the factored form will have 3 terms:

(x + a)(x + b)(x + c) = 0

For this expression to be 0, either (x+a) = 0 or (x+b) = 0 or (x+c) = 0

Then:

x + a = 0 ⇒ x = -a

x + b = 0 ⇒ x = -b

x + c = 0 ⇒ x = -c

Then, the values "a", "b" and "c" are equal to the zeros of the function but with opposite sign. Then, in our case:

a = 1

b = -2

c = -7

Then, the polynomial fuction will be:

(x + 1)(x - 2)(x - 7) = 0

Apply distributive property:

(x² - 2x + x -2)(x -7) = 0

(x² - x - 2)(x - 7)

x³ - x² - 2x - 7x² + 7x + 14 = 0

x³ - 8x² + 5x + 14 = 0

Then, a polynomial function that meets the conditions is:

x³ - 8x² + 5x + 14 = 0

Have a nice day!

6 0
3 years ago
The value of the x-intercept for the graph of 4x-5y=40 is<br> 1) 10<br> 2) 4/5<br> 3) -4/5<br> 4) -8
borishaifa [10]

Answer:

I took it and got this question anf got it correct! Hope i helped!

Step-by-step explanation:

- 8

7 0
3 years ago
Read 2 more answers
Solution to the system<br> y=-x2-3x+2<br> y=x+6
worty [1.4K]

Answer:

x=-2,y=4

Step-by-step explanation:

y=-x^2-3x+2

y=x+6

x+6=-x^2-3x+2

x^2+x+6=-3x+2

x^2+4x+6=2

x^2+4x+4=0

(x+2)(x+2)=0

x=-2

y=(-2)+6=4

8 0
3 years ago
What is are the multiples of 60
viva [34]
60,120,180,240,300,360,420,480,540,600,660,720,780,840,900,960,1020,1080,1140,1200,1260,1320,1380,1440,1500,1560,1620,1680,1740,1800,1860,1920,1980,2040,2100,2160,2220,2280,2340,2400,2460,2520,2580,2640,2700,2760,2820,2880,2940
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