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Thepotemich [5.8K]
3 years ago
7

How many lines of reflective symmetry and how many centers of rotational symmetry does the parallelogram depicted below have?

Mathematics
1 answer:
Musya8 [376]3 years ago
7 0

Answer:

4 lines of reflective symmetry, 1 center of rotational symmetry.

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Solve for c. a(b − c)=d
Lilit [14]
A(b - c) = d
ab - ac = d
-ac = -ab + d
ac = ab - d
ac/a = (ab - d)/a
c = (ab - d)/a

Your answer will be A. c = (ab - d)/a. Hope this helps!
6 0
3 years ago
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I need help with 23-29 please
butalik [34]
Using the shortcut for binomial expansion, which still took 45 minutes, I got 23-26.  The coefficient on the x^6 term is 34,020; the coefficient on the x^4 term  is -495; on the x^7 term it's 1800; on the x^3 term it's 337,920.  I'm pooped.  The rest is factorial notation, kinda the same thing, but...
7 0
3 years ago
Kendra earns $11.60 per hour working at the movie theater. Each week, she donates of
stich3 [128]

Answer:

$9.86

Step-by-step explanation:

First, write both numbers in the same form. Convert 8

1

2

to a decimal.

8

1

2

= 8+

1

2

= 8+

1×5

2×5

= 8+

5

10

= 8+0.5

= 8.5

Multiply.

11.6

× 8.5

580

+ 9280

98.60

Kendra earned $98.60 last week.

Now multiply to find how much money Kendra donated to the charity last week. She earned $98.60, and she donates  

1

10

of her earnings each week.

First, write both numbers in the same form. Convert  

1

10

to a decimal.

1

10

=0.1

Multiply.

98.6

× 0.1

9.86

Kendra donated $9.86 to the charity last week.

7 0
3 years ago
If 11 runners are participating in a race, how many different ways can there be first and second place runners?
MrRa [10]
Only <span>first and second place runners:
</span>11*10=110 ways

Hope that helped.
6 0
3 years ago
The area of a triangle is 36 4/5 units squared and the height of the triangle 9 1/5 what is the length of the triangles base
den301095 [7]

Answer:

Height = 8 units

Step-by-step explanation:

Area of a triangle = 36\frac{4}{5} square units

                             = \frac{184}{5} square units

Height of the triangle = 9\frac{1}{5} units

                                    = \frac{46}{5} units

Formula to calculate the area of a triangle is,

Area = \frac{1}{2}(\text{Base})(\text{Height})

\frac{184}{5}= \frac{1}{2}\times (\frac{46}{5})\times (\text{Height})

\frac{184}{5}= (\frac{46}{10})\times (\text{Height})

Height = \frac{184}{5}\times \frac{10}{46}

           = \frac{368}{46}

           = 8 units

Therefore, height of the given triangle is 8 units.

6 0
2 years ago
Read 2 more answers
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