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3 years ago

Circumference (Level 2)

Mathematics

2 answers:

kotykmax [81]3 years ago

7 0

Answer:

MAth 2x4x6-68

Step-by-step explanation:

Agata [3.3K]3 years ago

6 0

Answer:

radius r = 2.38732415 m

diameter d = 4.77464829 m

circumference C = 15 m

area A = 17.9049311 m2

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A4(3a2 - 2a + 1) What’s the product

guajiro [1.7K]

The answer is

3a^6 - 2a^5 + a^4

6 0

3 years ago

Question 15(Multiple Choice Worth 1 points) (06.04 MC) The expression to find the perimeter of a rectangle is 2(length + width).

vodomira [7]

Answer: 1 2/3

Step-by-step explanation:

The expression to find the perimeter of a rectangle is 2(length + width)

Length = 1/3

Width = 1/2

Perimeter = 2( 1/3 + 1/2)

Lowest common factor = 6

Perimeter = 2 [ (2 + 3) / 6]

Perimeter = 2 [ 5/6]

Perimeter = 10/6

Perimeter = 1 4/6 = 1 2/3

5 0

3 years ago

Given the function f(x) = 2x + 5, what would the input be with an output of 21

Pepsi [2]

Given :-

f(x) = 2x + 5

To Find :-

The input when output is 21 .

Answer :-

The given function is ,

f(x) = 2x + 5

Substitute f(x) = 21 ,

21 = 2x + 5
21 - 5 = 2x
16 = 2x
16/2=x
x = 8

8 0

3 years ago

Read 2 more answers

I NEED HELP PLEASE, THANKS! Use Cramer's Rule to find the solution of the system of linear equations, if a unique solution exist

iren2701 [21]

Answer:

Option B

Step-by-step explanation:

We are given the following system of equations -

$\begin{bmatrix}-5x+2y-2z=26\\ 3x+5y+z=-22\\ -3x-5y-2z=21\end{bmatrix}$

Now by Cramer's Rule, we would first write down the matrix of the coefficients , replacing each column with the answer column -

$\begin{bmatrix}-5&2&-2\\ 3&5&1\\ -3&-5&-2\end{bmatrix}$ ,

$\begin{bmatrix}26\\ -22\\ 21\end{bmatrix}$

Replace each column of the coefficients shown at the top, with the answer column at the bottom respectively -

$\begin{bmatrix}-5&2&26\\ 3&5&-22\\ -3&-5&21\end{bmatrix}$

Now solve through Cramer's Rule -

x = Dx / D = - 6,

y = Dy / D = - 1,

z = Dz / D = 1

Solution = ( - 6, - 1, 1 ) = Option B

8 0

4 years ago

I NEED HELP

BaLLatris [955]

Answer:

$\dfrac{1}{6}\ \text{cups per hour}$

Step-by-step explanation:

V = volume

r = rate

t = time

Use formula $V=r\cdot t$ connecting volume, rate and time.

In your case,

$V=\dfrac{1}{4}$ cup of water

$t=1\dfrac{1}{2}$ hours

r is unknown.

Substitute all data into the formula:

$\dfrac{1}{4}=r\cdot 1\dfrac{1}{2}\\ \\\dfrac{1}{4}=r\cdot \dfrac{3}{2}\\ \\2\cdot \dfrac{1}{4}=3r\ [\text{Multipled by 2}]\\ \\3r=\dfrac{1}{2}\\ \\r=\dfrac{\frac{1}{2}}{3}\ [\text{Divided by 3}]\\ \\r=\dfrac{1}{6}\ \text{cups per hour}$

3 0

3 years ago