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lisabon 2012 [21]
3 years ago
10

Select the shapes that have fewer than two paírs of parallel sides

Mathematics
1 answer:
lutik1710 [3]3 years ago
3 0

Answer:

A trapezoid and a couple of quadrilaterals

Step-by-step explanation:

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Please help me on the picture above. I will give points for people who help.
Jobisdone [24]

Answer:

I believe the one you selected is correct. A negative plus a negative makes a positive meaning you start at -2 and end with +2

6 0
3 years ago
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Which property is shown?
solniwko [45]

Associative Property of Addition hope this helps

8 0
3 years ago
Which group of three squares will form a right triangle when<br> joined at their vertices?
Ilia_Sergeevich [38]

Answer:

Option ?) 17 cm, 15 cm, 8 cm

<em>The assignment should have </em><em>four options</em><em> to choose from, but there is only a picture of two. </em>

Step-by-step explanation:

<em>None of the squares </em><em>shown</em><em> form a right triangle. To determine if sides form a right triangle, you use </em><em>this</em><em> formula:</em>

a²+b²=c²

<em>We are given two options in the picture.</em>

Option A) 18, 10, and 8.

Option B) 12, 9, and 6.

<em>So, now we need to apply the formula:</em>

Option A)

║8² + 10² = 18²

  ↓

║64 + 100 = 324

  ↓

║FALSE

Option B)

║6² + 9² = 12²

  ↓

║36 + 81 = 144

  ↓

║FALSE

<em>Both of these options are false.</em><em> But, I decided to look up this assignment to check my answer. It turns out, there are </em><em>4 options</em><em>, and you only had a picture of two. So, what's the answer?</em>

<em />

<em>There is an answer choice that shows 3 squares with the lengths of 17 cm, 15 cm, and 8 cm. </em><em>This is the correct answer</em><em>.</em>

<em />

<em>For proof, let's apply the formula:</em>

Option ?)

║8² + 15² = 17²

  ↓

║64 + 225 = 289

  ↓

║TRUE

<em>[Since the option isn't shown, I'll put a '?' so there is no confusion]</em>

8 0
2 years ago
Use FOIL to explain how to find the product of (a + b)(a − b). Then describe a shortcut that you could use to get this product w
xenn [34]

Answer:

The product of (a+b)(a-b)  is a^2 - b^2

Step-by-step explanation:

Use FOIL to explain how to find the product of (a + b)(a − b)

FOIL is

Multiply First terms : a*a = a^2

Multiply Outside terms : a* -b = -ab

Multiply Inner  terms : b * a= ab

Multiply last terms : b * -b = -b^2

now we combine all the terms

a^2 -ab+ab - b^2

combine like terms

a^2 - b^2

The product of (a+b)(a-b)  is a^2 - b^2

Shortcut is we apply an identity

a^2 - b^2 = (a+b)(a-b)

8 0
2 years ago
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Find f(1/3) if f(n) =3n
hichkok12 [17]

Answer:

f(1/3) = 1

Step-by-step explanation:

Plug 1/3 in for n

f(1/3) = 3(1/3)

Now simplify

f(1/3) = 1                 {   3(1/3) = (3/1)(1/3) = 3/3 = 1   }

6 0
3 years ago
Read 2 more answers
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