Answer:
Step-by-step explanation: The purpose of scientific notation is to make the numbers and quantities used easier to comprehend, to read and to write.
Express both numbers with the same power of ten.
Add the base numbers.
Bring the power of ten down to represent the new power of ten for the sum.
Simplify so that the base number is between 1 and 10.
So you find out how many triangles are in this by taking a point and making a line to another point that isn't on the same line. this one has 3 triangles. each triangle is 180*(using multiplication symbol for degree symbol).you do this to find out what the number of angles adds up to. 180* multiplied by 3 equals 540*. Then if you add up all the angles you have 400*. 540 - 400 equals 140*. So the final angle is 140*. Hope this helps!
Answer:B
Step-by-step explanation:because I got it correct
Patterns: vertical : y = a(x - h)² + k horizontal: x = a(y - k)² + h
Look at the patterns above and remember these key points.
<span>1) if the x is squared, the parabola is vertical. It either opens up or down. </span>
if the y is squared, the parabola is horizontal. It either opens left or right.
2) if a is positive, the parabola opens up or to the right.
if a is negative, the parabola opens down or to the left
<span>3) the vertex is at (h,k). Be very careful. locations of h and k varies if the parabola is vertical or horizontal. its sign is also different in those positions</span>
Answer:
2
Step-by-step explanation:
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