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3 years ago

The radius of the circle-shaped is 9 inches. What is the approximate circumference? (Use 3.14 for

Mathematics

1 answer:

Schach [20]3 years ago

5 0

Answer:

56.5

Step-by-step explanation:

circumfrence is 2 pi R

If the radius is 9=R

then the circumfrence is 56.5

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There are 9 more pencils then pens in a container. There are 25 writing utensils in the container in all. How many pens are ther

VashaNatasha [74]

In order to determine the number of pens present in the container, we need to set up equations from the given in the problem statement. We do as follows:

let x the number of pencils
y the number of pens

From the statement, 9 more pencils then pens in a container,

x = y + 9

From the statement, there are 25 writing utensils in the container in all,

x + y = 25

We use substitution method to calculate for x and y,

y + 9 + y = 25
2y = 16
y = 8
x = 17

Therefore, there are 8 pens in the container and 17 pencils.

3 0

3 years ago

If p(a)=a^3-6a^2+11a-9 and p(a)=-3,find the value of a?

Colt1911 [192]

Correct because if you do the math correctly you solve it

8 0

1 year ago

An oil company is considering 2 sites on which to drill, described as follows:

Olegator [25]

A)site A has a larger probablility of finding oil
B) the difference between amount of profitmade is 30 million.

7 0

3 years ago

6) (after 2.3) Consider the infinite system of linear equations in two variables given by ax + by = 0 where (a, b) moves along t

Paraphin [41]

Answer:

Step-by-step explanation:

Given infinite system of linear equations is ax + by = 0

when (a,b) moves along unit circle in plane.

a) system having unique system (0, 0)

Since two of equation in thus system will be

$1.x+0.y=0\\x=0$

and

$0.x+1.y=0\\y=0$

It is clear that x = 0, y= 0 is the only solution

b) Linear independent solution in this system gives some set of solutions

$1.x+0.y=0\\\x=0$

and

$0.x+1.y=0\\y=0$

Vector form is

$\left[\begin{array}{ccc}1&0\\0&1\end{array}\right] =I$

c) for this equation if add 0x +0y = 0 to system , Nothing will change

Because [0,0] satisfies that equation

d) If one of the equation is ax + by = 0.00001

where 0.00001 is small positive number

so, the system will be inconsistent

Therefore, the system will have no solution.

6 0

3 years ago

The equation,y = 225x + 200, represents the cost,y, students must pay to play x sports, as long as the athlete's family has join

Ira Lisetskai [31]

Answer:

The answer is B I am on the time for learning format so It may differ but for me it's B

Step-by-step explanation:

5 0

2 years ago