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3 years ago

2.75 As a fraction in simplest form

2 answers:

8 0

2 3/4, because <span>.75 is like 25 50 75 100 75 is third which makes it the third out of the fourth and before the decimal is 2 which is a whole number so that makes it just two and your 3/4 = 2 and 3/4</span>

marshall27 [118]3 years ago

7 0

2.75=2 3/4 because you would say 2.75 as two and seventy-five hundredths. Seventy-five hundredths is just like 3 quarters out of 4 because 1 quarter=25. 2=50. 3=75. So, 2.75 as a fraction in simplest form is 2 3/4.
Hope I helped:D

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Which of the following is the quotient of the rational expressions shown here?

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13 x-2(8+5 x)=12-11 x

77julia77 [94]

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2 years ago

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Step-by-step explanation:

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3 years ago

How many pages would same have finished in 126 minutes

Sedaia [141]

Answer:

Sam will finish 42 pages in 126 minutes.

Step-by-step explanation:

Number of pages read by Sam = 6

Time taken to read these pages = 18 minutes

Rate at which Sam is reading the pages of the book = $\frac{\text{Number of pages read}}{\text{Time taken to read these pages}}$

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Consider the vector field ????(x,y,z)=(5z+y)????+(4z+x)????+(4y+5x)????.

Fynjy0 [20]

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a) $5xz + xy + 4yz$

b) 10

Step-by-step explanation:

a) Here $F(x,y,z)=(5z+y)i+(4z+x)j+(4y+5x)k$

Since the case $F$ = ∇ $f$ holds, then

∇ $f = f_xi+f_yj+f_zk$ = $(5z+y)i+(4z+x)j+(4y+5x)k$

So, $f_x = 5z + y$

If we integrate $f_x$ with respect to x, we will get an integration constant C which is also a function that depends to y and z.

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$f = \int f_xdx = 5xz + xy + g(y,z)$

Now we need to find g(y,z).

So first let's take the derivative of g(y,z) with respect to y.

$f_y = x + g_y(y,z) = 4z + x$

Hence, $g_y(y,z) = 4z$

So now, if we integrate $g_y$ with respect to y to find g(y,z)

$g = \int g_ydy = 4yz + C$

Thus,

$f = 5xz + xy + g(y,z) = 5xz + xy + 4yz + C$

And since $f(0,0,0)=0$ , then $C=0$

Thus,

$f = f(x,y,z) = 5xz + xy + 4yz$

b) By the Fundamental Theorem of Line Integrals, we know that

$\int\limits^a_b F. dr = F[r(b)]-F[r(a)]$

Hence,

$\int\limits^a_b F. dr = F(1,1,1)-F(0,0,0) =[(5+1+4)-(0+0+0)]=10$

8 0

3 years ago