3 years ago

which equation is in slope intercept form and represents a line with slope 3 through the point (9,-4)?

Mathematics

1 answer:

faust18 [17]3 years ago

4 0

Answer:

y = 3x - 23

Step-by-step explanation:

y + 4 = 3(x - 9)

y + 4 = 3x - 27

y = 3x - 23

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In the isosceles triangle ABC, we have AB=AC=4. The altitude from B meets AC at H. If AH=3(HC) then determine BC.

Inga [223]

Answer:

BC=√7

Step-by-step explanation:

AC=4

AC=AH+HC

=3HC+HC

=4HC

HC=1/4AC=1/4×4=1

AH=3HC=3×1=3

BH⊥ AC

AB=AC=4

$BC=\sqrt{AB^2-AH^2} =\sqrt{4^2-3^2} =\sqrt{16-9} =\sqrt{7}$

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2 years ago

If EF = 2x+13, FG = 20, and EG = 71 what's the value of x

klemol [59]

Answer:

Step-by-step explanation:

|<----------------- 71 ----------------------->|

E-----------------------F---------------------G

2x + 13 20

find: x

EF + FG = DG

2x + 13 + 20 = 71

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x = 38 / 2

x = 19

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2 years ago

david counts the quarters in his change jar. He has 24 more quarters than his brother Rob. if r is the number of quarters Rob ha

denis-greek [22]

Rob has R quarters, and David has R + 24 or 24 more than rob, so together they have 2R+24

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3 years ago

Can any one help me on this thank you

SVETLANKA909090 [29]

Figure A, the rectangle in the top left corner is the correct answer.

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2 years ago

F(x) = 1/3x -2; reflection in the x-axis

san4es73 [151]

Would it be -1/3x -2?

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2 years ago