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inn [45]
3 years ago
10

Two tractors working together cultivated 23 of a field in 4 days. How long would it take each tractor to cultivate the whole fie

ld by itself if the first tractor can do the job 5 days faster than the second?
Mathematics
1 answer:
Serhud [2]3 years ago
5 0

Answer:

HHHH

Step-by-step explanation:

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For a function p(x)= x^2-9, what is the inverse function for the domain [0, infinity\
kkurt [141]
An inverse function is a function that reverses another function, so we have a function called:

p(x)

Then, the inverse function will be as follows:

p^{-1}(x)

Given that y = p(x), we need to isolate x in terms of y:

y =  x^{2} -9
∴ y+9 = x^{2}

So:

x=+\sqrt{y+9} and x=-\sqrt{y+9}

therefore, exchanging variables x and y:

y=+\sqrt{x+9} and y=-\sqrt{x+9}
p^{-1}(x)=+\sqrt{x+9} and p^{-1}(x)=-\sqrt{x+9}

Which are the figures shown below.

7 0
3 years ago
I need help on it, I don’t know what I’m supposed to do
bogdanovich [222]

Answer:

The length of river frontage for each lot are 96.55 ft. 98.85 ft, 101.15 ft and 103.45 ft.

Step-by-step explanation:

See the attached diagram.

The river frontage of 400 ft will be divided into 84 : 86 : 88 : 90 for each lot as AP, BQ, CR, DS and ET all are parallel.

Therefore, PQ : QR : RS : ST = 84 : 86 : 88 : 90 = 42 : 43 : 44 : 45

Let, PQ = 42x, QR = 43x, RS = 44x and ST = 45x

So, (42x + 43x + 44x + 45x) = 400

⇒ 175x = 400

⇒ x = 2.2988.

So, PQ = 42x = 96.55 ft.

QR = 43x = 98.85 ft.

RS = 44x = 101.15 ft and  

ST = 45x = 103.45 ft

(Answer)

6 0
3 years ago
PLZ HELP I NEED THISS
Nikolay [14]

Answer:

Step-by-step explanation:

1) 5

2) -3, which becomes 3

3) it would land at either 3, or -3

4) 7 or -7

5) if it is to the left, that means it is negative. there fore, your answer is -4

6 0
3 years ago
Pls!! I’m stuck on this question
Elena L [17]

Answer: 4x4=16, 6x6x6x6=1296, 1296+16=1312

the answer is 1312

Step-by-step explanation: find the area. 4x4, 6x6x6x6, the 3 is only there to throw you off you dont do anything with the 3

i think thats right

4 0
3 years ago
Point A to point B: Walk 200 m north for 3 minutes. •
vampirchik [111]

Step-by-step explanation:

200 + 100 + 150 + 200 +150 = 800 m in total

8 min in total

you are going 100 m a minute or 6000 m an hour

6 0
3 years ago
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