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3 years ago

A car travels a constant speed of 45 km/h

Mathematics

1 answer:

Paha777 [63]3 years ago

3 0

Answer:

1 hour

Step-by-step explanation:

because i divided

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Which of the following integrals represents the area of the region bounded by x = e and the functions f(x) = ln(x) and g(x) = lo

Neko [114]

Notice that

$\log_{1/e}x=\dfrac{\ln x}{\ln\frac1e}=\dfrac{\ln x}{-\ln e}=-\ln x$

$f(x)=\ln x$ and $g(x)=-\ln x$ intersect when $x=1$ . For all $x>1$ , we have $\ln x>0$ and $-\ln x$ , so $f(x)>g(x)$ . Then the area we want is given by the integral,

$\displaystyle\int_1^e\ln x-(-\ln x)\,\mathrm dx=2\int_1^e\ln x\,\mathrm dx$

or in terms of $\log_{1/e}x$ ,

$\displaystyle\int_1^e\ln x-\log_{1/e}x\,\mathrm dx$

5 0

3 years ago

Is the square root of 15 greater than, less then , or equal to 4?

Sever21 [200]

Answer:

less than 4

Step-by-step explanation:

the closest perfect square root to 15 is the square root of 16, which produces the number 4. since 16 is greater than 15, the value of the square root of 15 is less than 4.

hope this helps!

4 0

4 years ago

Find the values of the variables for which ABCD must be a parallelogram

sleet_krkn [62]

Answer:

y=5 and x=4

Step-by-step explanation:

So,the diagonals of a parallelogram bisect each other..

therefore,we have our two eqn

4x-2=3y-1------------(i)

3y-3=3x

or,y-1=x----------(ii)

Now,simply substitute value of x in eqn (i)

4(y-1)-2=3y-1

or,4y-4-2=3y-1

or,y=5

Again,substitute y=5 in eqn (ii)

5-1=x

therefore,

x=5

Hope it helps you!!!

4 0

4 years ago

I am stuck on this question, please help me.

egoroff_w [7]

Answer:

the answer is c

4 0

3 years ago

If the grain pile has a diameter of 30 feet and a height of 16 feet, what is the volume of the grain pile? In terms of TT.

krek1111 [17]

Answer: 75TT

(When you answer in terms of pi, don’t multiply pi but leave it in your answer)

Step-by-step explanation:

assuming the grain pile is a pyramid, V=1/3 TT r^2

(1/3) (TT) (15^2). Remember radius is 1/2 of diameter

(1/3) (225) TT

Answer 75TT

5 0

2 years ago