03/24/22

How do solve this

Mercury(II) nitrate is a compound formerly used to treat fur to make felt for hats. It can also cause a psychological illness, which is where the phrase 'mad as a hatter' originated. Mercury(II)... more

03/24/22

perimeter and area

find the perimeter and area of a rectangle, when it is reduced by a scale factor 2?

03/22/22

Formative Test Prep

Nola is an electrician. She charges her customers $85 and $35 for each hour of labor. While doing work for a local business, the total charges for the work was $226. Which equation could be used to... more

03/22/22

how to find the dy/dx by implicit differentiation

5x2+y2=4dy/dx=

03/22/22

how to find the first and second derivatives of

x2(4X+1)4f'(x)= f''(x)=

03/22/22

how to find the 1st and 2nd derivatives from

√(5x-2)f'(x)= f''(x)=

Marginal Cost of a produc

The marginal cost of a product is modeled bydC/dx= (14)/(cuberoot(14x+7)(a)where x is the number of units. When x = 15, C = 140.(b)Find the cost function. (Round your constant term to two decimal... more

03/20/22

You can run at a speed of 8 mph and swim at a speed of 4 mph and are located on the shore, 5 miles east of an island that is 1 mile north of the shoreline.

How far (in mi) should you run west to minimize the time needed to reach the island?

A point is pulled by two ropes...

A point is pulled by two ropes: one to the left and up 34° with a magnitude of 5, the other to the right and up 16° with a magnitude of 7. What is the resultant force on the point?(A) 28.98∠9.4°(B)... more

03/19/22

Suppose a jar contains 17 red marbles and 31 blue marbles. If you reach in the jar and pull out 2 marbles at random at the same time, find the probability that both are red.

Suppose a jar contains 17 red marbles and 31 blue marbles. If you reach in the jar and pull out 2 marbles at random at the same time, find the probability that both are red.

03/19/22

Bearings Application Problem

A boat leaves the harbor entrance and travels in the direction N 29 ∘ E. After 19 miles, the captain realizes he's made a navigation error, and changes direction to S 59 ∘ E. After... more

03/18/22

Amoun of gas help Plz

P1V1=P2V2Part AA sample of ideal gas at room temperature occupies a volume of 11.0 L at a pressure of 672 torr. If the pressure changes to 3360 torr, with no change in the temperature or moles of... more

03/18/22

Calculus Homework

A rectangular billboard 5 feet in height stands in a field so that its bottom is 9 feet above the ground. A nearsighted cow with eye-level at 4 feet above the ground stands theta feet from the... more

03/18/22

how do i find if a transition is smooth between two functions using derivatives?

i have two functionsone is an ex function f(x) = -ex+46.46 {-4 < x < 0} . the derivative is -exthe second is a straight line f(x)= -1.32x+45.46 {0 < x < 16.84}. the derivative is... more

Please help!! I cant find the domains

For each pair of functions, find  and  . Determine the domain of  and the domain of . Show your work.1.  and 2.  and 3.  and 4.  and 5.  and 

Please help!! I cant find the domains

For each pair of functions, find  and  . Determine the domain of  and the domain of . Show your work.1.  and 2.  and 3.  and 4.  and 5.  and 

03/17/22

Simplify and write the trigonometric expression in terms of sine and cosine:

Simplify and write the trigonometric expression in terms of sine and cosine:cot(−x)cos(−x)+sin(−x)=−1/f(x)so then..f(x)=

03/17/22

A Ferris wheel is 25 meters in diameter and boarded from a platform that is 1 meters above the ground.

A Ferris wheel is 25 meters in diameter and boarded from a platform that is 1 meters above the ground. The six o'clock position on the Ferris wheel is level with the loading platform. The wheel... more

03/17/22

Linear inequalities

Linear inequalities: three times a number decreased by seven is between -43 and 59find the interval for valid values

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