All categories

3 years ago

Which equation of a line passes through the points (3,-1) and (6,1)

Mathematics

1 answer:

Law Incorporation [45]3 years ago

4 0

Again? Ok, we'll use point slope form this time;

Slope is change in y over change in x,

m = (1 - -1)/(6 - 3) = 2/3

y + 1 = (2/3)(x - 3)

y = (2/3)x - 3

Answer: y = (2/3)x - 3

You might be interested in

An engineer is planning a new water pipe installation. The circular pipe has a diameter of d=20\text{ cm}d=20 cmd, equals, 20, s

aivan3 [116]

Answer: The answer is 314.28 cm² (approx.).

Step-by-step explanation: Given that an engineer is going to install a new water pipe. The diameter of this circular pipe is, d = 20 cm.

We need to find the area 'A' of the circular cross-section of the pipe.

Given, diameter of the circular section is

$\textup{d}=20~\textup{cm}.$

So, the radius of the circular cross-section will be

$\textup{r}=\dfrac{\textup{d}}{2}=\dfrac{20}{2}=10~\textup{cm}.$

Therefore, cross-sectional area of the pipe is

$\textup{A}=\pi \textup{r}^2=\dfrac{22}{7}(10)^2=\dfrac{2200}{7}=314\dfrac{2}{7}=314.28~.~.~.~\textup{cm}^2.$

Thus, the answer is 314.28 cm² (approx.).

4 0

4 years ago

Games at the carnival cost $3 dollars each. The prizes awarded to the winners cost the owner $145.65. How many games must be pla

kow [346]

50=3x-145.65
195.65=3x
x= about 66 games played

5 0

4 years ago

PLS HELP!!!!!! (again! XP)<br> Express each of these numbers, as a product of two fractions 2/25

pickupchik [31]

That is a half so divide it

7 0

2 years ago

Evaluate the following expression when x=-4 and y=4 x6-x/4y

BlackZzzverrR [31]

Answer:

Step-by-step explanation:

To evaluate x^6-x/4y when x=-4 and y =4

We get

-4^6-(-4)/4(4)

=4096+4/16

=4100/16

=256.25

5 0

3 years ago

Use the zero product property to find the solutions to the equation x^2-15x-100=0

7nadin3 [17]

Answer:

$x = 20$ or $x = -5$

Step-by-step explanation:

To solve the quadratic equation we must factor the expression

Look for 2 numbers that when you multiply them, obtain the result -100 and when you add them, obtain the result -15.

You can verify that these numbers are -20 and 5

$-20 +5 = -15\\\\-20 * 5 = -100$

Then the polynomial factors are

$(x-20) (x + 5) = 0$

The zero product property says that if two terms $a * b = 0$ then

$a = 0$ or $b = 0$

$(x-20) = 0$ or $(x + 5) = 0$

$x = 20$ or $x = -5$

6 0

4 years ago

Read 2 more answers