Answer:
45
Step-by-step explanation:
As a first rough estimate: divide 390 by 10, obtaining 39.
Another reasonable approximation could be obtained by dividing 450 by 9 and 360 by 9, obtaining 50 and 40. Since 390 is roughly halfway between 360 and 450, estimate that the quotient is approx 45 (halfway between 40 and 50).
You find where your graph intersects the y-axis, or just plug in 0 for x in an equation to get the y-intercept. For No.1 you can just simply plug in any 2 numbers to get 2 points
Answer:
1st group contains triangles that are similar
Step-by-step explanation:
since its opposite corresponding angle are equal.
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8/7 exact form
or
1 1/7 mixed number form