You need tracing paper and pencil
You first trace the triangles you see in the question and follow the rotation instructions.
For example, question 5 says to rotate 90 clockwise
so trace triangle on tracing paper, hold pencil on one point of the corners and rotate the tracing paper clockwise 90.
then you have a new triangle which you can draw out with a ruler.
Hope this somehow made sense, Its hard to give instructions in writing :)
A = number of ants
w = number of worms
There are 20 more ants than worms.
⇒ a - 20 = w
There are 80 insects.
⇒ a + w = 80
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Solve for a and w :
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a -20 = w -------------- (1)
a + w = 80 -------------- (2)
Substitute equation (1) into (2) :
a + (a - 20) = 80
a + a - 20 = 80
2a - 20 = 80 // combine like terms
2a = 100 // add 20 to both sides
a = 50 // divide by 2 on both sides
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Sub a = 30 into equation (1) :
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a - 20 = w
50 - 20 = w
w = 30
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Find ants and worms :
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ants = a = 50
worms = w = 30
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Answer: There are 50 ants and 30 worms.
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Divide each term in the y column by 2 to go from this list {8, 2, 0, 2, 8} to this list {4, 1, 0, 1, 4}
This list {4, 1, 0, 1, 4} is a bunch of perfect squares so it suggests that y = x^2
However we must double the values to get back to the original list. So the rule is y = 2*x^2
Answer:
-35y^6.
Step-by-step explanation:
Multiply 7 x 5.
Then multiply 4 x 2.
That will give you -35y^6.
Hope this helped and good luck! (:
The closest would be -7/10 or -1/2 because -3/5 is -.6 and the nearest fractions to -.6 is -7/10 and -1/2.