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kondaur [170]
3 years ago
14

Subtract the second of the following expression from the first a-b+c-d, c-a+d-b

Mathematics
1 answer:
Gennadij [26K]3 years ago
6 0
First: a-b+c-d
Second: c-a+d-b
First-Second
=a-b+c-d-(c-a+d-b)
=a-b+c-d-c+a-d+b  after distributing the negative sign
=a+a-b+b+c-c-d-d  collect similar terms
=2a-0+0-2d
=2a-2d

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How do I give an example of a positive and negative tempature that has a different of 5 degrees
love history [14]

Answer:

You could say +3 and -2 or +4 and -1

Step-by-step explanation:For example if you draw a number line

count 1 hump between each line.   it equals 5.

     |_______|_______|_______|_______|_______|

    -2            -1               0              1              2              3

4 0
3 years ago
Find the slope of the line that passes through each pair of points and show your work (-3,-2),(-3,2)
aalyn [17]

Answer:

undefined slope, it's a vertical line

7 0
3 years ago
40 points I'll mark you as BRAINLIEST for the person with the right answers .
Karo-lina-s [1.5K]
9. y=-1/4x^2+4x-19
group
y=(-1/4x^2+4x)-19
undistribute -1/4
y=-1/4(x^2-16x)-19
take 1/2 of -16 and squer it to get 64 then add neg and pos inside
y=-1/4(x^2-16x+64-64)-19
factorperfect square
y=-1/4((x-8)^2-64)-19
expand
y=-1/4(x-8)^2+16-19
y=-1/4(x-8)^2-3
vertex is (8,-3)

10.
group
y=(1/4x^2-3x)+18
undistribute
y=1/4(x^2-12x)+18
take 1/2 of -12 and square it and add neg and pos isndie
y=1/4(x^2-12x+36-36)+18
factor
y=1/4((x-6)^2-36)+18
expand
y=1/4(x-6)^2-9+18
y=1/4(x-6)^2+9
get to form (x-h)^2=4p(y-k)
minus 9 both sides and times 4
(x-6)^2=4(y-9)
(x-6)^2=4(1)(y-9)
so 1>0 so opens up and focus is 1 above vertex
vertex is (6,9)
so focus i (6,10)





11.
y=(-1/6x^2+7x)-80
y=(-1/6)(x^2-42x)-80
take 1/2 of linear coefient and squer it and add negative and positive inside
-42/2=-21, (-21)^2=441
y=(-1/6)(x^2-42+441-441)-80
factor perfect square the square
y=(-1/6)((x-21)^2-411)-80
expand
y=(-1/6)(x-21)^2+73.5-80
y=(-1/6)(x-21)^2-6.5
add 6.5 to both sid
y+6.5=(-1/6)(x-21)^2
times both sides by -6
-6(y+6.5)=(x-21)^2
(x-21)^2=-6(y+6.5)
(y-21)^2=4(-3/2)(y-(-6.5))
vertex is
-3/2<0 so directix is above
it is -3/2 or 1.5 units above the vertex
up is y so
-6.5+1.5=-5
the directix is y=-5




11.
in form (y-1)^2=4p(x+3)
opens left or right
(y-1)^2=4(4)(x+3)
vertex is (-3,1)
4>0 so opens right
dirextix is to left
it is 4 units to left
(-3,1)
left right is x
4 left of -3 is -4-3=7
x=-7 is da directix
3 0
3 years ago
An angle of 1.5 rad intercepts an are on the unit circle. What is the length of the intercepted arc?
Maslowich

The arc length is related to the angle and length of the radius of the circle via the equation

S=r\theta

This is a unit circle, hence, <em>r</em> = 1. The angle is given as 1.5 radians or can be written as 1.5π. Hence, the length of the intercepted arc is computed as

\begin{gathered} S=(1)(1.5\pi) \\ S=1.5\pi \end{gathered}

4 0
1 year ago
Of the variables affecting your auto insurance, are any of them truly random variables?
Goryan [66]

The true statement about auto insurance is : ( D ) Auto insurance premiums can vary from company to company, therefore, it is important to comparison shop for the best price and coverage.

<h3>What is Auto insurance ?</h3>

Auto insurance is a contract entered between a car owner or his representative with an insurance company, which protects the car owner from any financial losses arising from the damage or loss of the car. A premium is been paid as agreed between the car owner and the insurance company to keep the auto insurance active.

The premium amount varies from company to company.

In conclusion Auto insurance premiums can vary from company to company, therefore, it is important to comparison shop for the best price and coverage.

Learn more about Insurance premiums :

brainly.com/question/3053945

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8 0
3 years ago
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