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erik [133]
3 years ago
13

Tom drives 200 miles in 4 hours.

Mathematics
2 answers:
babymother [125]3 years ago
7 0
If tom is driving 200 miles in 4 hours... and drives the first 32 miles in half an hour... his speed for the rest of the trip would most likely be 48 mph because 3.5 hours are left and 168 miles are left and when you divide that it comes out to 48.
SVETLANKA909090 [29]3 years ago
6 0

His average speed for the rest of the journey was of 48mph.

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If alpha and beta are the zeroes of the polynomial f(x)= xsquare -8x +gamma such that alpha - beta = 2 find the value of gamma.
Komok [63]

Answer:

Γ = 15

Step-by-step explanation:

Given

f(x) = x² - 8x + Γ

with a = 1, b = - 8 and c = Γ , then

sum of zeros α + β = - \frac{b}{a} = - \frac{-8}{1} = 8

product of zeros = αβ = \frac{c}{a} = Γ

Given α - β = 2 , then

(α - β)² = 2²

α² - 2αβ + β² = 4 → (1)

and

(α + β)² = 8²

α² + 2αβ + β² = 64 → (2)

Add (1) and (2) term by term

2α² + 2β² = 68 ( divide through by 2 )

α² +β² = 34

Substitute α² + β² = 34 into (1)

34 - 2αβ = 4 ( subtract 34 from both sides )

- 2αβ = - 30 ( divide both sides by - 2 )

αβ = 15

Now

αβ = Γ = 15

Thus

f(x) = x² - 8x + 15

4 0
3 years ago
What is the solution to this equation?
Orlov [11]

Answer:

D. x=12

Step-by-step explanation:

Add 17 to the other side of the equal sign

x=17+5

Then add 17 and -5

X=12

6 0
3 years ago
I believe the answer is B but I think im wrong
brilliants [131]
The second one is the correct answer. Plug in -3 into the equation.
4 0
3 years ago
The histogram displays different numbers of days that customers rented a car. Which interval represents the most common number o
sleet_krkn [62]

Answer:

See Explanation

Step-by-step explanation:

The question is incomplete, as the histogram is not attached.

However, the solution to your question is to select the interval with the highest frequency

Take for instance, after getting readings from the histogram, yiu have:

1 - 10: 8

11 - 20: 5

21 - 30: 11

31 - 40: 2

And so on.......

Interval 11 - 20 will represent the required interval because it has the highest frequency.

3 0
3 years ago
One number is five more than another and their sum is three less than three times the smaller
soldier1979 [14.2K]
X = y + 5
(x + y) = 3y - 3

y + 5 + y = 3y - 3
2y + 5 = 3y - 3
5 + 3 = 3y - 2y
8 = y

x = y + 5
x = 8 + 5
x = 13

ur numbers are : 8 and 13
5 0
3 years ago
Read 2 more answers
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