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3 years ago

Calc Help Please!!! Urgent!!

Mathematics

1 answer:

tatyana61 [14]3 years ago

5 0

The derivative is just the slope. So it's constant negative for the line up to x=-3. Then we have a parabola that will go linearly from a positive slope to zero at the origin to a negative slope at x=3. Then a constant positive slope.

So we're looking for flat negative line up to x=-3, linear starting positive and through the origin ending negative at x=3, then a flat positive.

Answer: third choice

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Margaret went to the convenience store and purchased 4 cans of cola for 2.76. how many cans could she have purchased at the same

liq [111]

The answer would be 19 cans

7 0

3 years ago

Read the problem to choose the correct method, then solve. A farmer buys a tractor for $50,000. If the tractor depreciates 10% p

OlgaM077 [116]

Answer:

The correct option is, Exponential Decay, $23,914.85.

Step-by-step explanation:

A farmer buys a tractor for $50,000.

It is provided that the the tractor depreciates 10% per year.

The exponential function for decay is:

$y=a\cdot (1-r\%)^{t}$

Here,

a = initial value

r = decay rate

t = time

Compute the value of the tractor in 7 years as follows:

$y=a\cdot (1-r\%)^{t}$

$=50000\times (1-0.10)^{7}\\\\=50000\times 0.4782969\\\\=23914.845\\\\\approx 23914.85$

Thus, the correct option is, Exponential Decay, $23,914.85.

5 0

2 years ago

Find the surface area of a right prism whose bases are equilateral triangles with side lengths of 6in. The height of the prism i

vesna_86 [32]

ANSWER

$211.2 {in}^{2}$

EXPLANATION

The surface area of a triangular prism is

equal to the area of two triangular faces

plus the area of the three rectangular faces.

The area of the equilateral triangle is calculated using the formula:

$= 2 \times \frac{ \sqrt{3} }{4} {s}^{2} + 3 \times \: bh$

where s=6 is the length of one side.

and b=6 is the breadth of the rectangle and h=10 is the height of the rectangle.

Surface area

$= 2 \times \frac{ \sqrt{3} }{4} \times {6}^{2} + 3 \times \: 6 \times 10$

$= 18\sqrt{3} + 180$

=211.2square inches.

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3 years ago

Need help with a math question

Hunter-Best [27]

Whats the question that you need help with?

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2 years ago

If a2+b2=c2 then is the converse theorem false or true

Mariana [72]

False, that is the Pythagorean theorem.

6 0

3 years ago

Read 2 more answers