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3 years ago

Someone please help

Mathematics

2 answers:

svp [43]3 years ago

7 0

Answer:

I got 25z^2−15z+2

Step-by-step explanation:

But if the answer shown is the correct answer, I think your computer read wrong, because those answers are the exact same :/

Kipish [7]3 years ago

5 0

Answer:

The answer is 25z^2+2-15z

Step-by-step explanation:

The form one will often see polynomials in is called standard form. It is when the terms are ordered in highest degree to lowest degree. For example, when given the polynomial x4+2x3+x+11, it is in standard form because 4 is the highest power, then 3 and 1.

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3(11 – 9) 2 – 3 • 6 help plz

trapecia [35]

The product of this problem would be 69

Hope this helped :)

6 0

3 years ago

Read 2 more answers

Gravel is being dumped from a conveyor belt at a rate of 40 ft3/min. It forms a pile in the shape of a right circular cone whose

Norma-Jean [14]

Answer:

$\frac{dh}{dt}=\frac{160}{169\pi } ft/min$

Step-by-step explanation:

This is a classic related rates problem. Gotta love calculus!

Start out with the formula for the volume of a cone, which is

$V=\frac{1}{3}\pi r^2h$

and with what we know, which is $\frac{dV}{dt}=40$

and the fact that the diameter = height (we will come back to that in a bit).

We need to find $\frac{dh}{dt}$ when h = 13

The thing we need to notice now is that there is no information given to us that involves the radius. It does, however, give us a height. We need to replace the r with something in terms of h. Let's work on that first.

We know that d = h. Because d = 2r, we can say that 2r = h, and solving for r gives us that $r=\frac{h}{2}$ .

Now we can rewrite the formula with that replacement:

$V=\frac{1}{3}\pi (\frac{h}{2})^2h$

Simplify that all the way down to

$V=\frac{1}{12}\pi h^3$

The derivative of that function with respect to time is

$\frac{dV}{dt}=\frac{1}{12}\pi(3h^2)\frac{dh}{dt}$

Filling in what we have gives us this:

$40=\frac{1}{12}\pi (3)(13)^2\frac{dh}{dt}$

Solve that for the rate of change of the height:

$\frac{dh}{dt}=\frac{160}{169\pi } \frac{ft}{min}$

or in decimal form:

$\frac{dh}{dt}=.95\pi \frac{ft}{min}$

8 0

3 years ago

A triangle has side lengths of 10 ,24and 30 what type of triangle is it

Nata [24]

Answer:

It is scalene

Step-by-step explanation:

Because scalene triangles have no equal side lengths

6 0

3 years ago

Let w represent the possible weights of boxes on a delivery truck. For this type of delivery, the weight of the box must be with

Paraphin [41]

The answer is B. |w – 48| ≤ 8.

w - the weight of the box
The weight of the box must be within 8 pounds: w ≤ 8
The weight of the box must be within 8 pounds of a standard lifting weight of 48 pounds: |w – 48| ≤ 8

3 0

3 years ago

Choose the correct term to complete the sentence.

galina1969 [7]

Answer:

Step-by-step explanation:

Exponential growth

8 0

3 years ago

Someone please help​

Someone please help