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3 years ago

What is 8 and 1/5 - 4 and 2/5

1 answer:

5 0

Hmm. 8 1/5 minus 4 and 2/5 i like to make this easier by changing into fractions

41/5 minus 22/5

its 19/5

change back into mixed number.
3 4/5

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Which line represents the line of reflection in this diagram? f g h i

ss7ja [257]

The answer would be H, Because it is in the very center of both shapes which creates a line of symmetry which is used for the line of reflection

Hope this helped...

5 0

4 years ago

Read 2 more answers

Does anyone know how to do this ?

AysviL [449]

9514 1404 393

Answer:

y = 21

Step-by-step explanation:

In straightforward fashion, we can find the midpoints of the two segments, and set the distance between them equal to 10.

M = midpoint of AB

M = (A+B)/2 = ((-1, 0) +(-3, 6))/2 = (-4, 6)/2 = (-2, 3)

N = midpoint of CD

N = (C+D)/2 = ((3, 1) +(5, y))/2 = (8, 1+y)/2 = (4, (1+y)/2)

Then the distance MN is given by the distance formula.

|N-M| = 10 = √((4 -(-2))² +((1+y)/2 -3)²) . . . . . distance formula*

100 = 36 +((1+y)/2 -3)² . . . . . square both sides

64 = ((1 +y)/2 -3)² . . . . . . . . . subtract 36

8 = (1 +y)/2 -3 . . . . . . . . . . . . (positive) square root

11 = 1+y/2 . . . . . . . . add 3

22 = 1+y . . . . . . . . . multiply by 2

21 = y . . . . . . . . . . . subtract 1

_____

* The distance formula is an application of the Pythagorean theorem. Basically, the differences of x- and y-coordinates are taken to be the legs of a right triangle. They length of the hypotenuse is the distance between the two points.

d² = (x2 -x1)² +(y2 -y1)² . . . . . . . from the Pythagorean theorem

d = √((x2 -x1)² +(y2 -y1)²) . . . . . the usual distance formula

8 0

3 years ago

allison withdrew $7 from her savings account every day. if she continued to do this for a total of 5 days, find the integer that

AleksAgata [21]

Answer:

umm im not sure if this is the answer but i believe it would be -$35

Step-by-step explanation: -7 x 5

6 0

3 years ago

Xy (3.rº + 2x – 3y) simplify

hammer [34]

I think answer should be 8 please give me brainlest let me know if it’s correct or not okay thanks bye

7 0

3 years ago

A line contains the points (1, –6) and (–2, 6). What is the slope of a line that is perpendicular to this line?

OlgaM077 [116]

First, find the slope of the line contains the points (1,-6) and (-2,6) using slope formula
m = $\dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}$

plug in the numbers
m = $\dfrac{6-(-6)}{-2-1}$
m = $\dfrac{6+6}{-3}$
m = $\dfrac{12}{-3}$
m = -4

Second, determine the slope of perpendicular line
The slope of the perpendicular line is the opposite and reciprocal from the other line. Thus, the slope is $\dfrac{1}{4}$

3 0

3 years ago