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yanalaym [24]
3 years ago
15

Identify an equation in point-slope form for the line perpendicular to

Mathematics
1 answer:
erik [133]3 years ago
6 0

Answer:

A. y - 7 = -4(x + 2)

Step-by-step explanation:

Insert the coordinates into the formula with their CORRECT signs. Remember, in the Point-Slope Formula, <em>y - y₁ = m(x - x₁)</em><em>,</em><em> </em>all the negative symbols give the OPPOSITE term of what they really are. In addition, I recall that perpendicular lines have OPPOSITE <em>MULTIPLICATIVE INVERSE </em>[<em>RECIPROCAL</em>] <em>rate of changes</em> [<em>slopes</em>], so -4 really should be replaced with ¼, but if your assignment says otherwise, then this is the answer.

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Work out the question below
Andrews [41]

Answer:

he needs 20.25 bags of sand and it would cost her 80.79

Step-by-step explanation:

150cm*90cm*15cm=202,500cm^3 this is how much sand she needs to fill it

202,500cm^3/10,000cm^3=20.25 this is how many bags he needs

3.99*20.25=80.79 this is how much it'll cost him for all 20.25 bags

6 0
2 years ago
What is -x+y=6 in funtion form
lisov135 [29]
To get the function form, the y must be the only variable on one side. So, we need to solve for it.

We have:

-x + y = 6

then we get

y = 6 + x

when we move the x to the other side to get y by itself.

If you have any questions then leave a comment. Good luck!

5 0
3 years ago
A = 100(1+r)^4<br> Expand the right of this formula.<br> appreciate your help with an explanation
suter [353]

Answer:

100r^4 + 400r^3 + 600r^2 + 400r + 100

Step-by-step explanation:

Expanding ( r + 1 )^4 gives :-

r^4 + 4r^3 + 6r^2 + 4r + 1

So multiplying 100 with r^4 + 4r^3 + 6r^2 + 4r + 1 gives :-

100r^4 + 400r^3 + 600r^2 + 400r + 100

4 0
3 years ago
two arcs of concentric circles are intercepted by the same central angle. the resulting arc length of the arc of the larger circ
Bond [772]
the complete question in the attached figure

Let
A°-----------> <span>the same central angle

</span><span>For the larger circle
length of larger circle=2*pi*r-------> 2*pi*12-----> 75.36 m

360</span>°<span> (full circle) has a length of------------> 75.36 m 
 A</span>°-----------------------------------> 16 m
A°=(16)*360/75.36--------> A=76.43°

For the smaller circle
length of smaller circle=2pi*r-------> 2*pi*7.5-----> 47.1 m

360° (full circle) has a length of------------> 47.1 m 
 76.43°-----------------------------------> X
X=76.43*47.1/360-----> X=10 m ----> length arc of the smaller circle

the answer is
the length arc of the smaller circle is 10 m

3 0
3 years ago
Can someone please help me I can’t figure this out!!
mixas84 [53]
1. Declarative
2. Interrogative
3. Imperative
4. Interrogative
5. Exclamatory? (Not 100% sure)
6. Exclamatory
7. Declarative
8. Imperative
9. Interrogative
10. Declarative
6 0
3 years ago
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