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3 years ago

A sprinter ran a race in 11 seconds. What is the domain of this graph?

Mathematics

2 answers:

Ivanshal [37]3 years ago

8 0

Answer:

That answer was wrong you dumb b****

Step-by-step explanation:

it isn't B

pychu [463]3 years ago

3 0

Answer:

The answer is B.

Step-by-step explanation:

All the integers are positive.

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In interval notation signs use what grouping symbol?

Vesnalui [34]

Answer:

either parentheses or brackets

Step-by-step explanation:

(x,y) means that the number is not included in interval notation

[x,y] means that the number is included in interval notation

3 0

2 years ago

Given the matrices: 1 2 A= 1 -1 2 1 1 B= 3 4 Calculate AB: C11 C12 [2.1] х 1 2 3 4 C21 C22 C11 = C12 = -2 C22 - C215 DONE

eduard

Answer:

$\:c_{11}=-2,\:\:\:c_{12}=-2$

$\:c_{21}=5,\:\:\:c_{22}=8$

Step-by-step explanation:

Given the matrices

$A=\begin{pmatrix}1&-1\\ 2&1\end{pmatrix}$

$B=\begin{pmatrix}1&2\\ \:3&4\end{pmatrix}$

Calculating AB:

$\begin{pmatrix}1&-1\\ \:\:2&1\end{pmatrix}\times \:\begin{pmatrix}1&2\\ \:\:3&4\end{pmatrix}=\begin{pmatrix}c_{11}&c_{12}\\ \:\:\:c_{21}&c_{22}\end{pmatrix}$

Multiply the rows of the first matrix by the columns of the second matrix

$=\begin{pmatrix}1\cdot \:1+\left(-1\right)\cdot \:3&1\cdot \:2+\left(-1\right)\cdot \:4\\ 2\cdot \:1+1\cdot \:3&2\cdot \:2+1\cdot \:4\end{pmatrix}$

$=\begin{pmatrix}-2&-2\\ 5&8\end{pmatrix}$

Hence,

$\begin{pmatrix}c_{11}&c_{12}\\ \:\:\:c_{21}&c_{22}\end{pmatrix}=\begin{pmatrix}-2&-2\\ \:5&8\end{pmatrix}$

Therefore,

$\:c_{11}=-2,\:\:\:c_{12}=-2$

$\:c_{21}=5,\:\:\:c_{22}=8$

5 0

2 years ago

Read 2 more answers

Which number satisfies the inequality 9h + 15 > 55?

telo118 [61]

9h + 15 > 55
- 15 - 15
9h > 40
h > 40/9
h > 4.44444.
any number greater than 4.44444

4 0

3 years ago

Read 2 more answers

What is 4 x 10 to the third power written in STANDARD FORM!!!!!!!!!!!!!!!!!!!!

GuDViN [60]

Answer:

(4x10)^3=64,000

Step-by-step explanation:

p please mark brainliest

6 0

2 years ago

Read 2 more answers

Which ordered pair is a solution of the equation y=x-3?

labwork [276]

Answer:

D is your answer

Step-by-step explanation:

y = x - 3

y = 2

x = 5

now insert the x and y into the equation

2 = 5 - 3

then subtract

2 = 2

last to find out if your right when both numbers equal each other like 2 = 2 then that will be you answer to your problem

4 0

2 years ago

A sprinter ran a race in 11 seconds. What is the domain of this graph?​

A sprinter ran a race in 11 seconds. What is the domain of this graph?