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dezoksy [38]
4 years ago
10

Please help! What are additive inverses? *Brainliest*

Mathematics
2 answers:
Marrrta [24]4 years ago
8 0

Additive inverses are two numbers that have a sum of zero. Additive inverses can be represented on horizontal or vertical number lines by using arrows of equal length pointing in opposite directions.

Hopefully this helps!

klio [65]4 years ago
6 0

They are two numbers that equal zero altogether.

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Icon" to view the SpeechStream® loolbar article for
RUDIKE [14]

<u>Answer:</u>

\simeq 820 feet

<u>Step-by-step explanation:</u>

He has asked me to move the finish line 0.25 km forward

Now,

we know that

1 km = 0.621371 mile

⇒ 0.25 km = 0.25 \times 0.621371 mile  

                   = 0.25 \times 0.621371 \times 1760 \times 3 feet

(since 1760 yards = 1 mile and 3 feet = 1 yard)

                    = 820.20972 feet

                   \simeq 820 feet . (Answer)

8 0
3 years ago
Find symmetric equations for the line of intersection of the planes. z = 4x − y − 13, z = 6x + 5y − 13
MArishka [77]
The intersection line of two planes is the cross product of the normal vectors of the two planes.

p1: z=4x-y-13 => 4x-y-z=13
p2: z=6x+5y-13 => 6x+5y-z=13
The corresponding normal vectors are:
n1=<4,-1,-1>
n2=<6,5,-1>

The direction vector of the intersection line is the cross product of the two normals, 
vl=
 i   j   k
4 -1 -1
6  5 -1
=<1+5, -6+4, 20+6>
=<6,-2,26>
We simplify the vector by reducing its length by half, i.e.
vl=<3,-1,13>

To find the equation of the line, we need to find a point on the intersection line.
Equate z:  4x-y-13=6x+5y-13 => 2x+6y=0 => x+3y=0.
If x=0, then y=0, z=-13 => line passes through (0,0,-13)

Proceed to find the equation of the line:
L: (0,0,-13)+t(3,-1,13)
Convert to symmetric form:
\frac{x-0}{3}=\frac{y-0}{-1}=\frac{z-(-13)}{13}
=>
\frac{x}{3}=\frac{-y}{1}=\frac{z+13}{13}

3 0
3 years ago
MATH!!! (please answer correctly...) find the surface area of the prism
eimsori [14]
232
A=2(WL+HL+HW)
so 2(8*10+2*10+2*8)
6 0
2 years ago
If (x, 42) is a solution to the equation y = -6 (x – 15) – 3, find x
Molodets [167]

Put y and find x

  • y=-6(x-15)-3
  • 42=-6(x-15)
  • 42+3=-6(x-15)
  • 45=-6x+90
  • -6x=-45
  • x=45/6
  • x=15/2
8 0
2 years ago
a rectangular field has an area of 1,764m^2. the width of the field is 13 more then the length. what is the perimeter of the fie
RSB [31]

13 \times x = 1764

x =  \frac{1764}{13}

6 0
4 years ago
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