Fast first gets brainliest Part A<br> Write an equation for each line.

Use the distance formula to determine the distance between (-8,10) and (-6,7)

hjlf

Answer:

Distance: $\sqrt{13}$ units

Step-by-step explanation:

The distance formula is $d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$ where:

$d$ is the distance between points $(x_1,y_1)$ and $(x_2,y_2)$
$(x_1,y_1)$ are the coordinates of the first point
$(x_2,y_2)$ are the coordinates of the second point

We are given that:

$(x_1,y_1)=(-8,10)$
$(x_2,y_2)=(-6,7)$

To determine the value of our distance, $d$ , we plug in our given information into the formula and solve for

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

$d=\sqrt{(-6-(-8))^2+(7-10)^2}$

$d=\sqrt{(-6+8)^2+(-3)^2}$

$d=\sqrt{(2)^2+(-3)^2}$

$d=\sqrt{4+9}$

$d=\sqrt{13}$

Therefore, the distance between $(-8,10)$ and $(-6,7)$ is $\sqrt{13}$ units.

See the attached graph for a visual.

5 0

3 years ago

Plz help brain fam!

Liono4ka [1.6K]

What would make finding the answer a bit easier, is converting them into improper fractions. You would turn that first fraction to $\frac{-9}{4}$ and the second fraction to $\frac{-3}{2}$ . (You are dividing a negative by a negative, therefore, your answer would be a positive.

Let's follow the procedure of keeping, switching, and flipping. You keep the first improper fraction, switch the division sign to a multiplication sign, and flip the second fraction. That would make it : $\frac{-9}{4}$ × $\frac{-2}{3}$ .

You multiply the 9 and the 2, you get 18. You multiply the 3 and the 4, you get 12. That makes it $\frac{18}{12}$ . This, converted to a mixed fraction, makes 1 $\frac{6}{12}$ ., which is the same as 1 $\frac{1}{2}$ . Your answer is the SECOND CHOICE.

8 0

3 years ago

Read 2 more answers

La temperatura a una distancia r del centro de una lámina está dada por T=40 (r2?2r) . La variación instantánea de la temperatur

PilotLPTM [1.2K]

For this, the first thing to do is to assume that the function of temperature with respect to r is written in one of the following ways:

Way 1:

$T = 40 (r ^ 2 + 2r)$

Way 2:

$T = 40 (r ^ 2-2r)$

To find the instant variation we must find the derivative of the temperature with respect to the distance r.

We have then:

For function 1:

$\frac {dT} {dr} = 40 \frac {d ((r ^ 2 + 2r))} {dr}\\$

$\frac {dT} {dr} = 40 (2r + 2)$

Rewriting

$\frac {dT} {dr} = 80r + 80$

For function 2:

$\frac {dT} {dr} = 40 \frac {d ((r ^ 2-2r))} {dr}$

$\frac {dT} {dr} = 40 (2r-2)$

Rewriting

$\frac {dT} {dr} = 80r-80$

Answer:

The instantaneous variation of the temperature with respect to r is given by:

Assuming function 1:

$\frac {dT} {dr} = 80r + 80$

Assuming Function 2:

$\frac {dT} {dr} = 80r-80$

6 0

3 years ago

Table

Lelu [443]

Answer:

A

Step-by-step explanation:

Table:

it says that x is the amount of tickets, so that would be 1, 2, 3, etc.

It says that y is the money spent and also tells us that one ticket is $3, so obviously the money would be increasing by thirds: 3, 6, 9

This all goes with the first table (table A)

Graph:

As for the graph-

X = # of tickets (1, 2, 3)

Y = $ spent (3. 6, 9)

The answer would be graph A, because when looking at it you can tell that the starting point is at $0 for 0 tickets, unlike for graph b, which shows $3 for 0 tickets, which does not make any sense. But when you continue on when graph A, you can tell that this answer choice is correct, because every time, the y value is 3 times the x value which means: y=3x

4 0

3 years ago

Factor: x^2 - 8x - 9<br><br>WHAT IS IT PLEASE HELP ME MY HEAD HURTS<br>WILL MARK AS BRAINLEST

marissa [1.9K]

Answer:(x+1)(x-9)

Step-by-step explanation:

5 0

4 years ago

Read 2 more answers

Fast first gets brainliest Part A Write an equation for each line.