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Vesnalui [34]
3 years ago
11

The polynomial given below has roots?

Mathematics
2 answers:
Stels [109]3 years ago
6 0
The answer is c
Two positive and two negative
MakcuM [25]3 years ago
6 0
X=( -b+/- √(b²-4ac))/(2a)
x=(-3+/- √(3²-4*2*(-2))/(2*2)= (-3+/-  √(9+16))/4
x(1)=(-3+5)/4=2/4=1/2
x(2)=(-3-5)/4=-2

<span>C: one positive and one negative </span>
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A football field is 1000 yards long.Each if the two end zones adds an extra 10 yards . The field is 160 feet wide . What is the
Kobotan [32]

Answer:

The area of the whole field is 54400yd^2

Step-by-step explanation:

says that I add 10 yards in each zone, that means that 10 yards is added twice at 1000 yards

1000yd + 2*10yd = 1020yd

we have to know that one yard equals 3 feet

so to have the length in feet we only multiply it by 3

1020 * 3 = 3060ft

Now that we know the length and width of the court, we can calculate the area by multiplying them

a = b * h

a = 3060ft * 160ft

a = 489600 ft^2

the result is in square feet

if we want it in square yards we just have to divide 2 times by 3

489600/(3*3) = 54400yd^2

7 0
3 years ago
Read 2 more answers
What is <br> 2n - 3 = 9 ( solve the equation)
BartSMP [9]

2n - 3 = 9 \\ 2n = 12 \\ n = 6
5 0
3 years ago
What is the slope of the line through (2,-1) and (-2,-3)
Ipatiy [6.2K]

Answer:

y=1/2x-2

Step-by-step explanation:

1. Find slop by subtracting y values over subtracting x values, which will get you the m value

-1+3 / 2+2 = 1/2

3 0
3 years ago
The lengths of the sides of a triangle are 7. and 10. If the length of the longest side of a similar triangle is 25. what is the
NeX [460]

Answer: 17.5

Step-by-step explanation:

7:10 = x:25

times both sides by 25

25(7/10) =x

than solve for x

X = 25 × (7/10)

X = 17.5

7 0
2 years ago
A team of researchers published an article on the study of how vehicles are dispatched based on an airport-based taxi service. T
nikklg [1K]

Answer:

a. The mean would be 0.067

The standard deviation would be 0.285

b. Would be of 1-e∧-375

c. The probability that both of them will be gone for more than 25 minutes is 1-e∧-187.5

d. The likelihood of at least of one of the taxis returning within 25 is 1-e∧-375

Step-by-step explanation:

a. According to the given data the mean and the standard deviation would be as follows:

mean=1/β=1/15=0.0666=0.067

standard deviation=√1/15=√0.067=0.285

b. To calculate How likely is it for a particular trip to take more than 25 minutes we would calculate the following:

p(x>25)=1-p(x≤25)

since f(x)=p(x≤x)=1-e∧-βx

p(x>25)=1-p(x≤25)=1-e∧-15x25=1-e∧-375

c. p(x>25/2)=1-p(x≤25/2)=1-e∧-15x25/2=1-e∧-187.5

d. p(x≥25)=1-e∧-15x25=1-e∧-375

3 0
2 years ago
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