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leonid [27]
2 years ago
14

Does a trapezoid have exactly one pair of congruent sides sometimes, always, never

Mathematics
2 answers:
erastova [34]2 years ago
5 0
For me it is somethimes Because if th base 1 and base 2(which is always not congruent) can form a square, then if u draw a line with it then u can make right triangle with same sides which can use as a 45 45 90 or 30 60 90. Hope is helps
wariber [46]2 years ago
5 0
A trapezoid has congruent sides sometimes
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What is the range of this relation?
VARVARA [1.3K]

Answer:

Domain = {-5,2,4,6,8,9), range = (-3,-1,0,4,6,7}

Step-by-step explanation:

{(2,4), (8,-3), (-5,-1), (4,6), (6,7), (9,0)}

The domain is the input and the range is the output

domain is { 2,8,-5,4,6,9} and the range is {4,-3,-1,6,7,0}

We put the numbers in order from smallest to largest

Domain = {-5,2,4,6,8,9), range = (-3,-1,0,4,6,7}

5 0
2 years ago
Read 2 more answers
Why do you sometimes have only one multiplication sentence for an array
taurus [48]

Arrays are useful models for multiplication which can be used in a variety of ways, ranging from highly structured lessons to games and open investigations. An array is formed by arranging a set of objects into rows and columns. Each column must contain the same number of objects as the other columns, and each row must have the same number as the other rows.


The following array, consisting of four columns and three rows, could be used to represent the number sentence 3 x 4 = 12.

7 0
3 years ago
Please tell the LCM of the following -​
Arada [10]

Answer:

Below.

Step-by-step explanation:

I won't do all of these for you but I'll show you the general method.

First write each number  as prime factors.

For example number 7:

LCM of 24 and 34.

24 = 2 * 2 * 2 * 3

34 = 2 * 17

The LCM  is the multiple of all these factors EXCEPT if there is a duplicate number you only use it once.

There is one duplicate here - the 2 ( in bold) so we only use  this once.

So the LCM = 2 * 2 * 2 * 3 * 17 = 408.

Number 1:

13, 25

13 = 13

25 = 5 * 5

There are no duplicates  so the LCM = 13 * 5 * 5 = 325.

Number  18:

15, 84

15 = 3 * 5

84 = 2 * 2 * 3 * 7

Number 3 is common to both sets so it is only used once:

LCM = 2 * 2 * 3 * 5 * 7 = 420.

Number 40:

18, 48

18 = 2 * 3 * 3

48 = 2 * 2 * 2 * 2 * 3

There are 2 sets of duplicates here, 2 and 3 .

LCM =  2 * 2 * 2* 2 * 3 * 3 = 144.

4 0
2 years ago
Read 2 more answers
Me. Dietz is a teacher whose salary is $22,570 for this school year, which has 185 days. In Mr. Dietz school district, substitut
harina [27]

Answer:

School District pays $42 less to substitute teacher than Mr. Dietz.

Step-by-step explanation:

Given:

Salary of Mr. Dietz per year = $22570

Number of days in a year = 185 days.

Amount paid for Substitute teacher per day = $80

We need to find the Amount less paid to substitute teacher then Mr Dietz when Mr. Dietz takes a day off.

Solution:

First we will find the Amount paid for per day of Mr. Dietz.

Amount paid for per day of Mr. Dietz can be calculated by dividing Salary of Mr. Dietz per year with Number of days in a year.

framing in equation form we get;

Amount paid for per day of Mr. Dietz = \frac{22570}{185} = \$122

Now we will find Amount less paid to substitute teacher then Mr Dietz.

Amount less paid to substitute teacher then Mr Dietz  can be calculated by subtracting the Amount paid for Substitute teacher per day from Amount paid for per day of Mr. Dietz.

framing in equation form we get;

Amount paid for Substitute teacher per day = $122 - $80 = $42

Hence School District pays $42 less to substitute teacher than Mr. Dietz.

6 0
3 years ago
35
Julli [10]

Answer:

12.90 miles

Step-by-step explanation:

40×0.15=4.90 miles

50×0.16=8.00 miles

8 0
3 years ago
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