All categories

2 years ago

Pls help really confusing

Mathematics

1 answer:

Anna007 [38]2 years ago

4 0

Answer:k,kkk

kkkkkkk

Step-by-step explanation:

You might be interested in

What is the factorization of the polynomial below? -3x^3+15x^2+42x

kherson [118]

Factoring out x

x(-3x^2+15x+42) now factor parenthetical expression

x(-3x^2+21x-6x+42)

x(-3x(x-7)-6(x-7))

x(-3x-6)(x-7) we can factor out -3 from first parentheses

-3x(x+2)(x-7)

7 0

2 years ago

YOU RRR MEH HEROOOZZ! PUHLEASZEEE ITS 10:30pm!!

avanturin [10]

Answer:

$x(35)\approx 11.8$

Step-by-step explanation:

<u>Modeling With Functions </u>

We have a table of values of speeds vs distance taken for a car to stop. We are required to find a model that uses the square root and fits the given data to predict other values of d as a function of v.

By the nature of the problem, we can know that for v=0, d must be 0 too. So our model won't include a vertical shift or independent term. Being v the speed of the car and x the distance it takes to stop, we use the following model

$x(v)=A\sqrt{v}$

We must find A to make the function fit the data. Let's use the first point (v,x); (20,9)

$9=A\sqrt{20}$

Solving for A

$\displaystyle A=\frac{9}{\sqrt{20}}$

$A\approx 2$

Then we have

$x(v)=2\sqrt{v}$

Evaluating for v=35

$x(35)=2\sqrt{35}=11.83$

$\boxed{x(35)\approx 11.8}$

Last option

8 0

2 years ago

Ty has 230 pages of text to

Alona [7]

The first thing I would do is divide the rate by 1 1/4, to get the amount per hour which gives us this:
20 pages per 1 hour
Now, that we know he reads 20 pages per hour, we just divide 230 by 20 to find the amount of hours. Our answer comes out to 11.5 hours.

4 0

2 years ago

Read 2 more answers

The sum of two numbers is 80. Their difference is 22.

AVprozaik [17]

Answer:

51 + 29

Step-by-step explanation:

7 0

2 years ago

The answer to this question is C) 7

Sedbober [7]

Answer:

the answer is C)7

3 0

2 years ago