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3 years ago

Which is an equation of the line that is perpendicular to 3x+y=-5 and passes through the point (3, -7)?

Mathematics

2 answers:

nataly862011 [7]3 years ago

7 0

Answer:

y+7=1/3(x-3) in point slope

y=1/3x-8 in slope intercept form

Step-by-step explanation:

First put 3x+y=5 in slope-intercept form (y=mx+b)

y=-3x+5

Give that the slope is -3 the perpendicular slope would be 1/3

now using the points (3.-7)

y+7=1/3(x-3) in point slope

y=1/3x-8 in slope intercept form

laiz [17]3 years ago

5 0

Put it in Slope - Intercept Form:

3x + y = -5

-3x -3x

y = -3x - 5

Now plug in the ordered pair that is given:

(3, -7)

y = -3x - 5

-7 = -3(3) - 5

-7 = -9 - 5

-7 = -14

NO, it's false....

Hi, really really sorry if I am incorrect...

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Heather was asked to graph 3x - y = -4 by using slope and y-intercept. Her graph is shown.

Liula [17]

A. If you subtract -3x from both sides, you get -y=-3x-4 and then everything has to be subtracted by -1 so you get y=3x+4

7 0

3 years ago

Solve for x.

dalvyx [7]

$\huge \boxed{\mathfrak{Question} \downarrow}$

Solve for x.

$\large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}$

Okay, so from the given figure we can see that, < FAE & < FAB forms a linear pair. In a linear pair, the 2 angles will together sum up to 180°. So,

< FAE = 4x°
< FAB = 2x°

__________________

From the explanation, we can understand that,

Sum of the linear pair = 180°

< FAE + < FAB = 180°

4x° + 2x° = 180°

6x° = 180°

x° = 180 ÷ 6

x = 30°.

__________________

The value of x will be 30° (3rd option).

__________________

NOTE : Here, the lesser than symbol ( < ) stands for 'angle'.

7 0

3 years ago

The volume of a gift box is 972 in. The height of the gift box is 12 inches

Serggg [28]

Answer:

The length of each side of the 9 in

Step-by-step explanation:

The volume of the gift box is 972 in. The height of the gift box is 12 inches

and the area of the base is 81 in².

We want to determine the length of each side of the square base if the base shape is a square.

Recall that, the area of a square is

${l}^{2}$

It was given that, the area of this base is 81 in²

${l}^{2} = 81$

Take positive square root:

$l = \sqrt{81} = 9in$

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3 years ago

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coldgirl [10]

Vertex is (-5,-10) y intercept of g is (0,-1) zeroes of h are x=-3,1

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2 years ago

If T is the midpoint of segment RS then, Segment RT is congruent to segment TS.. Help please!!!!

omeli [17]

Answer:

Definition of Midpoint

Step-by-step explanation:

Since T is the midpoint then it is equadistant from R to T and T to S

3 0

3 years ago