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Rina8888 [55]
2 years ago
5

What is the slope of a line that contains the points (2,-7) and (-1, -6)

Mathematics
1 answer:
Bogdan [553]2 years ago
8 0

Answer:

Slope = - 1/3

Step-by-step explanation:

Y2-Y1 / X2 - X1

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Plzzzzz send help. I'll mark brainliest If cot = 1.5 and is in quadrant 3, what is the value of sin?
Ber [7]
We can’t see a graph so we can’t help you. you can mark me brainliest anyway though.
3 0
2 years ago
If x=(10-3i) and y=(3-10i), then xy=? and x/y=?
Solnce55 [7]

Answer:

xy=-109i

\frac{x}{y}=\frac{60}{109}+\frac{91}{109}i

Step-by-step explanation:

xy=(10-3i)(3-10i)

To compute x times y must use foil on the right hand side.

First:  10(3)=30

Outer: 10(-10i)=-100i

Inner: -3i(3)=-9i

Last: -3i(-10i)=30i^2=-30

------------------------------------Add like terms:

-109i

----------------

\frac{x}{y}

\frac{10-3i}{3-10i}

Multiply top and bottom by bottom's conjugate:

\frac{(10-3i)(3+10i)}{(3-10i)(3+10i)}

Foil the top and just do first and last of Foil for the bottom since the bottom contains multiplying conjugates:

\frac{30+100i-9i-30i^2}{9-100i^2}

Replace i^2 with -1:

\frac{30+91i+30}{9+100}

\frac{60+91i}{109}

\frac{60}{109}+\frac{91}{109}i

7 0
3 years ago
PLEASE HELP!!! ​WILL MARK BRAINIEST
Serga [27]

y = -4x + 3 this line has slope = -4

parallel lines, slope is the same so slope of new line is also equal -4


passing thru (8, -3)


y = mx + b

b = y - mx

b = -3 - (-4)(8)

b = -3 + 32

b = 29


equation:

y = -4x + 29


hope it helps

7 0
3 years ago
What is the expanded form for 309,01
Novosadov [1.4K]
300,000 + 9,000 + 10 = 309,010 
or if you meant 309,001
300,000 + 9,000 + 1 = 309,001
8 0
3 years ago
(a) (4,4) is a point on a locus whose equation is y2 = kx. Show that (16,8) is another point on the locus.
Vlad [161]

Step-by-step explanation:

plug the coordinate points into the equations and solve for the remaining variable.

b) (2,3) - 5(2) + b(3) = 16

10 + 3b = 16. 3b= 6. b = 2

(0,8) - 5(0) + 2(8) = 16. 0+ 16 = 16. ☆

a) (4,4) assume based on results you meant y squared. (y^2)

(4)^2 = 4k. 16 = 4k. k = 4

(8)^2 = 4(16). 64 = 64. ☆

6 0
3 years ago
Read 2 more answers
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