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Schach [20]
3 years ago
7

Name the quadrilaterals that have four equal sides.

Mathematics
1 answer:
Papessa [141]3 years ago
5 0
A: rhombus and squares have four equal sides.
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Find the 11th term of the arithmetic sequence. <br> a3 = 20.5 and a8 = 13, a11 = ______. ...?
lianna [129]
In order to solve for a nth term in an arithmetic sequence, we use the formula written as:<span>

an = a1 + (n-1)d

where an is the nth term, a1 is the first value in the sequence, n is the term position and d is the common difference.

First, we need to calculate for d from the given values above.  
<span>a3 = 20.5 and a8 = 13
</span>

an = a1 + (n-1)d
20.5 = a1 + (3-1)d

</span>an = a1 + (n-1)d
13 = a1 + (8-1)d
<span>
a1 = 23.5
d = -1.5

The 11th term is calculated as follows:

a11 = a1 + (n-1)d
a11= 23.5 + (11-1)(-1.5)
a11 = 8.5</span>
8 0
3 years ago
What is the length of the hypotenuse of the triangle?
sergey [27]
If you use the pothaorian theorym (A squared + B squared= C squared) youll be able to figure out the right answer is 65.
8 0
3 years ago
Read 2 more answers
PLZ HURRY !!!!! Different shapes are drawn on cards and then the cards are placed in a bag. The number of cards for each shape i
bazaltina [42]
70%
12+27+91 = 130
91/130 = .7
.7x100 = 70%
___
.700
7.00
70.0

Answer is 70%
5 0
3 years ago
Read 2 more answers
How many solutions are there to the equation below?<br>12x + 32 = 12X-7​
Greeley [361]

Answer: no solutions

Step-by-step explanation:

12x+32=12x-7

12x-12x=-7-32

0x=-39

No solutions

5 0
3 years ago
The two figures shown are congruent. Which statement is true?
zimovet [89]

9514 1404 393

Answer:

  (b) One figure is a rotation image of the other

Step-by-step explanation:

The axis of symmetry is horizontal for the left figure, and vertical for the right figure. The right figure has been rotated 90° CW from the left figure.

6 0
3 years ago
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