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2 years ago

An oil spill spreads 25 square meters every 1/6 hour. How much area does the oil spill cover after 2 hours

Mathematics

1 answer:

uranmaximum [27]2 years ago

3 0

25 = 1/6
25 × 6 = 150 ( Which is 1 hour)
150 × 2 = 300 (Which is 2 hours)
Answer: 300 square meters

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The perimeter of a rectangle deck is 175 feet.The length of the deck,L, is 6 feet longer than 2 times the width, w. Determine th

givi [52]

$x-\ length\\y-\ width\\\\
Perimeter=2x+2y\\\\
175=2x+2y\\
x=2y+6\\\\
175=2(2y+6)+2y\\
175=4y+12+2y\\
175=6y+12\ \ \ |Subtract\ 12\\
163=6y\ \ \ |Divide\ by\ 6\\
y=27,17feet\\\\
x=2*27,17+6=60,34feet\\\\
Length=60,34 \ feet\ and\ width=27,17\ feet.$

8 0

2 years ago

I need to solve for p and have a rationalized denominator

Travka [436]

Answer:

$p = \pm \dfrac{\sqrt{r(st - 1)}}{st - 1}$

$p = \dfrac{\sqrt{r(st - 1)}}{st - 1}$

Step-by-step explanation:

$t = \dfrac{p^2 + r}{p^2s}$

$p^2st = p^2 + r$

$p^2st - p^2 = r$

$p^2(st - 1) = r$

$p^2 = \dfrac{r}{st - 1}$

$p = \pm \sqrt{\dfrac{r}{st - 1}}$

Your picture cuts out the assumption. If the assumption is that all variables are non-negative, then the answer is

$p = \sqrt{\dfrac{r}{st - 1}}$

$p = \dfrac{\sqrt{r}}{\sqrt{st - 1}}}$

$p = \dfrac{\sqrt{r}}{\sqrt{st - 1}}} \times \dfrac{\sqrt{st - 1}}{\sqrt{st - 1}}$

$p = \dfrac{\sqrt{r} \sqrt{st - 1}}{\sqrt{st - 1}\sqrt{st - 1}}$

$p = \dfrac{\sqrt{r(st - 1)}}{st - 1}$

7 0

3 years ago

Can anyone answer these 2?

steposvetlana [31]

Answer:

1.) 12x-10

2.)18x+10

Step-by-step explanation:

8 0

2 years ago

) If the gradient of ff is ∇f=xi⃗ +yj⃗ +3zyk⃗ ∇f=xi→+yj→+3zyk→ and the point P=(−6,−6,−2)P=(−6,−6,−2) lies on the level surface

Paha777 [63]

Answer:

-3x-3y-z=38

Step-by-step explanation:

To find the equation of the tangent plane you can use

$\bigtriangledown f_x(x_0,y_0,z_0)(x-x_0)+\bigtriangledown f_y(x_0,y_0,z_0)(y-y_0)+\bigtriangledown f_z(x_0,y_0,z_0)(z-z_0)=0$

the point P is (-6,-6,-2). Hence you have

$(-6)(x-(-6))+(-6)(y-(-6))+(-2)(z-(-2))=0\\-6x-36-6y-36-2z-4=0\\-6x-6y-2z=76\\-3x-3y-z=38$

hope this helps!!

5 0

3 years ago

(a+4)(a-2) please help

REY [17]

Answer:

a²+2a-8

Step-by-step explanation:

6 0

2 years ago