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saveliy_v [14]
3 years ago
13

Identify which of these quadrilateral's are parallelograms.

Mathematics
1 answer:
nlexa [21]3 years ago
5 0

Answer:

B

E

F

Opposite Sides equal

Opposite sides parallel

Step-by-step explanation:

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What is a correct equation for the line passing through the point (-2,1) and having slope m=1/2
frez [133]

Step-by-step explanation:

The point-slope form of an equation of a line:

y-y_1=m(x-x_1)

m - slope

We ahve the slope m = 1/2 and the point (-2, 1). Substitute:

y-1=\dfrac{1}{2}(x-(-2))

y-1=\dfrac{1}{2}(x+2) - point-slope form

Covert to the slope-intercept form (y = mx + b):

y-1=\dfrac{1}{2}(x+2)          <em>use the distributive property</em>

y-1=\dfrac{1}{2}x+1          <em>add 1 to both sides</em>

y=\dfrac{1}{2}x+2   - slope-intercept form

Convert to the standard form (Ax + By = C):

y=\dfrac{1}{2}x+2     <em>multiply both sides by 2</em>

2y=x+4        <em>subtract x from both sides</em>

-x+2y=4         <em>change the signs</em>

x-2y=-4   -  standard form

Convert to the general form (Ax+By+C=0):

x-2y=-4        <em>add 4 to both sides</em>

x-2y+4=0   - general form

5 0
4 years ago
What is the indicated variable for a+3/b=c
babunello [35]
The indicated variable for a+3/b=c is a+3/b - c=0. That is the answer i am pretty sure.
8 0
3 years ago
Mike bought 16 paperback books at the used book store for $10.95. Some cost $0.60 and some cost $0.75. How many of each did he b
serg [7]
X=number of books that cost 0.60
y=number of books that cost 0.75

x+y=16
0.6x+0.75y=10.95

solve
multiply second equation by 10 for nicity
6x+7.5y=109.5

multiply first equesiotn by -6 and add to second

-6x-6y=-96
<u>6x+7.5y=109.5 +</u>
0x+1.5y=13.5

1.5y=13.5
divide both sides by 1.5
y=9

sub back
x+y=16
x+9=16
minus 6
x=7

seven 0.60 books and nine 0.75 books
6 0
4 years ago
Which of the following equations is equivalent to the formula for velocity
Lesechka [4]
What r the equations???
6 0
4 years ago
Find the value of x. Round to the nearest tenth.
tiny-mole [99]

Answer:

x=18.0

Step-by-step explanation:

x^2=a^2+b^2-2ab\;cos\; (30)

x^2=16^2+30^2-2(16)(30)cos(30)

x^2=324.62

x=18.0

4 0
2 years ago
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