3 years ago

A=3/a+2 Answer please ?

Mathematics

1 answer:

algol133 years ago

4 0

kkakskkskszlkzkzsiksks

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Which equation in slope intercept form represents the line that passes through (-1,5) and (5,8)

max2010maxim [7]

Find slope
slope between (x1,y1) and (x2,y2) is (y2-y1)/(x2-x1)
given
(-1,5) and (5,8)
slope=(8-5)/(5-(-1))=3/(5+1)=3/6=1/2

y=1/2x+b
sub a point
(-1,5)
x=-1, y=5
5=1/2(-1)+b
5=-1/2+b
add 1/2
5 and 1/2=b

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3 years ago

Please help

kakasveta [241]

Answer: A.(3x,3y)

Step-by-step explanation:

In the given graph,

Triangle A'B'C' is an image of Triangle ABC after dilation.

Algebraic rule for dilation (with center =origin)

$(x,y)\to (kx,ky)$ , where k= scale factor.

Coordiantes of A = (1,1) Coordinates of A' = (3,3)

Scale factor = $\dfrac{\text{x-coordinate in image}}{\text{ x-coordinate in pre-image}}$

$=\dfrac31=3$

Hence, the required algebraic rule : (3x,3y)

The correct option is A.

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3 years ago

Sarah’s sister has seven less than twice as many books as Sarah. Since the two girls share a room, they are all on the same book

GenaCL600 [577]

Answer:

x + 2x-7

Step-by-step explanation:

x is the amount of books Sarah has

2x-7 is how many books Sarah's sister has

Add them together : x+2x-7

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What is the sum of 15 and its additive inverse?

bonufazy [111]

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The answer is C, zero

Step-by-step explanation:

Additive inverses are numbers that equal zero when added together.

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