Find the slope given the 2 points: (6, 1) & (12, 11)

Answer the question in detail !!!

Vilka [71]

Answer:

ok so this means 2/5 of the plant have germs and

5-2=3

so 3/5 plants are all good

5 times 20=100

3 times 20=60

so 60% of the plants have germs

Hope This Helps!!!

8 0

2 years ago

at a bus station , buses depart at a rate of 3 every 10 minutes. at this rate, _____buses will depart in 1 hour

Marina CMI [18]

1 hour = 60 minutes

60 minutes / 10 minutes = 6

So 6 times in one hour 3 buses depart.

6 x 3 = 18 total buses in an hour.

6 0

3 years ago

DIscrete Math

Daniel [21]

Answer:

Step-by-step explanation:

As the statement is ‘‘if and only if’’ we need to prove two implications

$f : X \rightarrow Y$ is surjective implies there exists a function $h : Y \rightarrow X$ such that $f\circ h = 1_Y$ .
If there exists a function $h : Y \rightarrow X$ such that $f\circ h = 1_Y$ , then $f : X \rightarrow Y$ is surjective

Let us start by the first implication.

Our hypothesis is that the function $f : X \rightarrow Y$ is surjective. From this we know that for every $y\in Y$ there exist, at least, one $x\in X$ such that $y=f(x)$ .

Now, define the sets $X_y = \{x\in X: y=f(x)\}$ . Notice that the set $X_y$ is the pre-image of the element $y$ . Also, from the fact that $f$ is a function we deduce that $X_{y_1}\cap X_{y_2}=\emptyset$ , and because $f$ the sets $X_y$ are no empty.

From each set $X_y$ choose only one element $x_y$ , and notice that $f(x_y)=y$ .

So, we can define the function $h:Y\rightarrow X$ as $h(y)=x_y$ . It is no difficult to conclude that $f\circ h(y) = f(x_y)=y$ . With this we have that $f\circ h=1_Y$ , and the prove is complete.

Now, let us prove the second implication.

We have that there exists a function $h:Y\rightarrow X$ such that $f\circ h=1_Y$ .

Take an element $y\in Y$ , then $f\circ h(y)=y$ . Now, write $x=h(y)$ and notice that $x\in X$ . Also, with this we have that $f(x)=y$ .

So, for every element $y\in Y$ we have found that an element $x\in X$ (recall that $x=h(y)$ ) such that $y=f(x)$ , which is equivalent to the fact that $f$ is surjective. Therefore, the prove is complete.

3 0

2 years ago

Adrian works full time at the office supply store. He earns $525 each week. He wants to raise his income to at least $650 each w

slamgirl [31]

Answer:The total number of hours worked in the week is 46. The hourly pay would be 40(14) + 6(21) = $686 per week. The annual earnings are 52(686) = $35,672. The salary pay is more than the hourly pay based on the typical hours worked each week given in the table. Therefore, the employee would probably want to choose the salaried pay.

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Four friends buy cinema tickets using this offer.

SVEN [57.7K]

Answer:

idk sorry ok because I'm dumb

6 0

2 years ago

Read 2 more answers