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Lynna [10]
3 years ago
8

HEEELP ASAP PLEASEEEEEEEE Find the slope of the curve f(x) = 2x^2. 2x x 4x

Mathematics
1 answer:
mrs_skeptik [129]3 years ago
6 0

Answer:

4x

Step-by-step explanation:

2x^{2}

The derivative of ax^{n} is nax^{n-1}

2 × 2x^{2-1}

Multiply 2 times 2.

4x^{2-1}

Subtract 1 from 2.

4x^{1}

For any term t, t^{1} = t

4x

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How do you find a volume of a cone?
Dennis_Churaev [7]

Answer:

  V = (1/3)πr²h

Step-by-step explanation:

The volume of a cone is 1/3 the volume of a cylinder with the same radius and height.

  Cylinder Volume = πr²h

  Cone Volume = (1/3)πr²h

where r is the radius (of the base), and h is the height perpendicular to the circular base.

_____

<em>Comment on area and volume in general</em>

You will note the presence of the factor πr² in these formulas. This is the area of the circular base of the object. That is, the volume is the product of the area of the base and the height. In general terms, ...

  V = Bh . . . . . for an object with congruent parallel "bases"

  V = (1/3)Bh . . . . . for a pointed object with base area B.

This is the case for any cylinder or prism, even if the parallel bases are not aligned with each other. (That is, it works for oblique prisms, too.)

Note that the cone, a pointed version of a cylinder, has 1/3 the volume. This is true also of any pointed objects in which the horizontal dimensions are proportional to the vertical dimensions*. (That is, this formula (1/3Bh), works for any right- or oblique pyramid-like object.)

__

* in this discussion, we have assumed the base is in a horizontal plane, and the height is measured vertically from that plane. Of course, any orientation is possible.

4 0
3 years ago
Jeff and Marcia own a llama farm. On their farm, they have 240 llamas.
stealth61 [152]

Answer:

Step-by-step explanation:

7 0
2 years ago
The average of a and b is 6 and the average of a, b, and cis 11. what is the value of c?​
Andrei [34K]

Answer: C value would be 5

3 0
3 years ago
The speed of a Dragonfly is 6.974
Mashcka [7]
He is not correct, any number 5 or greater rounds the number up. 
The speed of the dragonfly would be 7 because 7 rounds 9 to 10 making 6 a 7.
7 0
3 years ago
POSSIBLE POINTS. 7 Two clothing stores are having a sale on all their dress shirts. Store A is charging $15 for each dress shirt
Anon25 [30]

Answer:

The statements are not provided, so i will answer in a general way.

Let's define the variable x as the number of dress shirts brought for some person.

In store A, each one costs $15.

Then the cost of x dress shirts will be:

A(x) = $15*x.

In store B, each one costs $18, but there is a coupon of $9, then we can write the cost in store B as:

B(x) = $18*x - $9.

Now we can find wich store will be cheaper for a given number x, by calculating the difference between A(x) and B(x).

D = A(x) - B(x)

If D is positive, means that B(x) is cheaper.

If D is negative, means that A(x) is cheaper.

If D is equal to zero, means that the cost is the same in both stores.

D = A(x) - B(x) = $15*x - $18*x + $9 = (-$3*x) + $9.

First, let's find for what value of x we have the same cost in both stores:

0 = (-$3*x) + $9.

$9/$3 = 3 = x.

Then for 3 dress shirts, the cost will be the same in each store.

Now, as the coefficient that multiplies x is negative, if we have x > 3, then D will be negative, and if x < 3, D will be positive.

then:

For x = 3, the cost is the same in both stores.

for x > 3, Store A is cheaper.

For x < 2, Store B is cheaper.

6 0
2 years ago
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