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bearhunter [10]
3 years ago
15

sara mailed 20 christmas cards. of them were mailed to canada. what percentage of the cards were mailed to canada

Mathematics
2 answers:
allochka39001 [22]3 years ago
8 0

Answer:

45%

Step-by-step explanation:

9/20

ICE Princess25 [194]3 years ago
8 0

HOW MANY AE MAILED TO CANADA....

PLEASE GIVE ALL THE INFORMATION REQUIRED TO ANSWER THE QUESTION

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jeremy drew a polygon with four right angles and four sides with the same length.what kind of polygon did jeremy draw?
FromTheMoon [43]
A square has 4 right angels and 4 sides with equal angels ;)
8 0
3 years ago
Why is it important to calculate the distance between two points on a cartesian coordinate plane?
Gwar [14]

Answer:

Derived from the Pythagorean Theorem, the distance formula is used to find the distance between two points in the plane. The Pythagorean Theorem,

a

2

+

b

2

=

c

2

, is based on a right triangle where a and b are the lengths of the legs adjacent to the right angle, and c is the length of the hypotenuse. The relationship of sides

|

x

2

−

x

1

|

and

|

y

2

−

y

1

|

to side d is the same as that of sides a and b to side c. We use the absolute value symbol to indicate that the length is a positive number because the absolute value of any number is positive. (For example,

|

−

3

|

=

3

. ) The symbols

|

x

2

−

x

1

|

and

|

y

2

−

y

1

|

indicate that the lengths of the sides of the triangle are positive. To find the length c, take the square root of both sides of the Pythagorean Theorem.

c

2

=

a

2

+

b

2

→

c

=

√

a

2

+

b

2

It follows that the distance formula is given as

d

2

=

(

x

2

−

x

1

)

2

+

(

y

2

−

y

1

)

2

→

d

=

√

(

x

2

−

x

1

)

2

+

(

y

2

−

y

1

)

2

We do not have to use the absolute value symbols in this definition because any number squared is positive.

A GENERAL NOTE: THE DISTANCE FORMULA

Given endpoints

(

x

1

,

y

1

)

and

(

x

2

,

y

2

)

, the distance between two points is given by

d

=

√

(

x

2

−

x

1

)

2

+

(

y

2

−

y

1

)

2

Step-by-step explanation:

4 0
3 years ago
Line k is parallel to line l. Lines k and l are parallel. Lines m and n intersect to form 2 triangles. The top triangle has angl
larisa86 [58]

Answer:The line that is congruent to angle 4 is angle 1

hope this helped :)

6 0
3 years ago
Read 2 more answers
24 + 7s = 80 Somebody please help1
mamaluj [8]

Answer:

s=8

Step-by-step explanation:

lmk if you want an in depth explanation

4 0
1 year ago
Read 2 more answers
Solve the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to three decimal plac
worty [1.4K]
So here is the answer to the given equation above.
To find the answer, we can just factor this one. 
<span>(2sinθ+1)(sinθ−1)=0</span><span>sinθ = <span><span>−1/</span>2</span>→θ = <span>{<span><span><span>−π/</span>6 </span>+ 2kπ, <span><span>7π/</span>6 </span>+ 2kπ</span>}</span></span><span><span>sinθ=1→θ=<span>{<span><span>π/2 </span>+ 2kπ</span>}
Hope this answers your question. Let me know if you need more help next time. Have a great day!</span></span></span>
8 0
3 years ago
Read 2 more answers
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