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Simora [160]
3 years ago
13

I need to know if the lines made by those two equations are parallel, perpendicular or neither

Mathematics
1 answer:
natita [175]3 years ago
3 0
They're perpendicular.

Both equations are in the form y=mx+b, where m is the slope and b is the y-intercept.

Perpendicular lines have opposite reciprocal slopes (ex: the opposite reciprocal of 5 is -1/5).

Parallel lines have the same slope, but different y-int.
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Write an equation in slope intercept form for the line that passes through (2,-2) and is parallel to y=-5/2x+5
DENIUS [597]

y=mx+b\\y=x-2

<em>Only y= x - 2 intercepts x-axis at 2 and y-axis at -2. Thus meaning that they intercept oppositely.</em>

<em>Find if both graphs are parallel, that means the equation must be false.</em>

<em />x-2=-\frac{5}{2}x+5<em />

<em>Multiply whole equation by 2 to get rid of the fractional 2.</em>

<em />2x-(2)(2)=-\frac{5}{2}(2)(x)+5(2)\\ 2x-4=-5x+10\\2x-4+5x-10=0\\7x-14=0\\7x=14\\x=2<em />

<em>Well, that doesn't seem to be parallel. This is called one solution answer. Both graphs intercept at (2,0). There are no linear graphs that intercept at (2,-2) except for y = x-2 so there are no graphs with (2,-2) that are parallel to the equation y = -5x/2+5 </em>

8 0
3 years ago
The figure has ____ lines of symmetry. A. 0 B. 4 C. 6 D. 8
Olenka [21]
A.) <span>Scalene Triangle has no Lines of S</span>ymmetry 
B.) <span>A </span>Square<span> (4 sides) </span><span>has </span>4 Lines of Symmetry
C.) <span>A </span>Regular Hexagon<span> (6 sides) </span>has 6 Lines of Symmetry
D.) <span>A </span>Regular Octagon<span> (8 sides) </span><span>has </span>8 Lines of Symmetry
7 0
3 years ago
I need help!!! ASAP!!!! !!!!!
GalinKa [24]

Answer:

1.

Volume= 729cm^3

Height= 9cm^2

Area of Base= 81cm^2

2.

Volume=450m^3

Height= 3m^2

Area of Base=150m^2

3.

Volume= 480 cm^2

Area of base=75cm^2

Height= 8cm^2

4.

Volume =120in^3

Area of Base=20in^2

Height= 6in^2

Step-by-step explanation:

Volume = (length) Times (Width) Times (Height)

Area os base = (Length) Times (width)

3 0
2 years ago
8 3/8 = r- 2 1/3 how do i solve this equation by finding out what r is.
BaLLatris [955]
First, convert your mixed numbers into improper fractions, so 8+3/8=69/8 and 2+1/3=7/3. Now you have 69/8=r-(7/3). Now, add 7/3 to both sides, so (69/8)+(7/3)=r. Now, just add your fractions, so (69/8)+(7/3)=207/24+56/24=(207+56)/24=263/24. If you need to, this can be converted back into the mixed number 10+23/24.
7 0
3 years ago
1.) a square has a perimeter of 144 yd. what is the length of each side
Anuta_ua [19.1K]

Answer:

1) 36 yard

2) 2 feet

Step-by-step explanation:

1) Perimeter = 4 * side length

  144 = 4 * s

  s = 36

2) Area = Length * Length

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   l = 2

8 0
3 years ago
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