Can someone help me?!

Mathematics

1 answer:

ser-zykov [4K]2 years ago

6 0

Answer:

5 3/4 + 2 1/4 =y

Step-by-step explanation:

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What is the value of this expression?<br> 2.3·23.623

lora16 [44]

Answer:

54.3329

Step-by-step explanation:

calculator said so lol

4 0

2 years ago

AB contains points (2, 1) and (-1, -8). What is the equation of the line parallel to AB that contains point (0, 2)?

Iteru [2.4K]

For this case we have that by definition, the equation of a line in the slope-intersection form is given by:

$y = mx + b$

Where:

m: It's the slope

b: It is the cut-off point with the y axis

We have two points that belong to the AB line:

$(x_ {1}, y_ {1}) :( 2,1)\\(x_ {2}, y_ {2}): (- 1, -8)$

We can find the slope:

$m = \frac {y_ {2} -y_ {1}} {x_ {2} -x_ {1}} = \frac {-8-1} {- 1-2} = \frac {-9} {- 3} = 3$

By definition, if two lines are parallel then their slopes are equal. Thus, a line parallel to AB will have slope $m = 3$ , then the equation will be of the form:

$y = 3x + b$

We substitute the given point and find b:

$(x, y) :( 0,2)\\2 = 3 (0) + b\\2 = b$

Finally, the equation is:

$y = 3x + 2$

Answer:

$y = 3x + 2$

7 0

3 years ago

I don’t know the answers to these helpp‍♀️

Andrej [43]

1. figure name triangular prism
bases 4
faces 4
edges 6
verticies 4
skew lines idk sorry

2. figure name hexagonal based triangular prism
bases 1
faces 7
edges 12
verticies 7
skew lines sorry idk

for skew lines, this might help