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3 years ago

Which is the slope intercept form of an equation for the line containing (0,-3) woth slope -1?

Mathematics

1 answer:

gtnhenbr [62]3 years ago

3 0

Slope intercept is y=mx+b
y=-1x-3

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Points P and Q belong to segment AB . If AB = a, AP = 2PQ = 2QB, find the distance: between the midpoints of segments AP and QB

amid [387]

Answer:

$\frac{a}{8}$

Step-by-step explanation:

AB = a

AP = 2PQ = 2QB

AB = AP + PQ + QB

= AP + $\frac{AP}{2}$ + $\frac{AP}{2}$

AB = 2AP

AP = $\frac{a}{2}$ -----(1)

And we know QB = $\frac{AP}{2}$

QB= AP/2 = $\frac{a}{4}$ ---------(2)

Now midpoint of AP = $\frac{a}{2}$ × $\frac{1}{2}$ = $\frac{a}{4}$

and midpoint of QB = $\frac{a}{4}$ × $\frac{1}{2}$ = $\frac{a}{8}$

distance between these midpoints = $\frac{a}{4}$ - $\frac{a}{8}$

= $\frac{a}{8}$

4 0

4 years ago

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Which of the following is a perfect square trinomial?

Bezzdna [24]

Answer:

$D.~4x^2-20xy+25y^2$

Step-by-step explanation:

$4x^2-20xy+25y^2\\\\=(2x)^2-2\cdot 2x \cdot 5y+(5y)^2\\\\=(2x-5y)^2$

3 0

2 years ago

A square is reflected across the y -axis, then translated 3 units down to form a second

meriva

No they are not square congruent because it goes 3 units down

8 0

4 years ago

Solve the following equation for y.

labwork [276]

Answer:

Step-by-step explanation:

2y+2=36

Let's solve this equation for 2y first. This means get 2y by itself.

So to get 2y by itself I need to undo that addition of 2 next to it.

The inverse operation of addition is subtraction.

I'm going to subtract 2 on both sides:

2y =36-2

2y =34

Now we want to get y by itself so we divide both sides by 2 since division and multiplication are inverse operations:

y= 34/2

y= 17

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3 years ago

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Write a unit rate for: 71 inches of cloth for $23.43.

deff fn [24]

Answer:

$0.33 per inch

Step-by-step explanation:

Divide cost by inch to get cost per inch.

4 0

3 years ago