To achieve a grade of B in Math, Melvin must achieve an average score of at least 83 on five math tests. His scores on the first three tests are 85, 90, and 80. What is the lowest total score that Melvin must have on the last two tests to earn a B test average?

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step-by-step explanation:

answer: 0,6

step-by-step explanation:

this would make it the y intercept.

mean, 40.6

step-by-step explanation:

18 units²

step-by-step explanation:

first let's find altitude bd using the distance formula

d = √((y₂ - y₁)² + (x₂ - x₁)²)

bd = √((0 - -3)² + (0 - 3)²)

bd = √18

given the placement of points a and c, we can denote that point d bisects segment ac.

we will call ac the base.

using the distance formula

ac = √((0 - 6)² + (-6 - 0)²)

ac = √72

knowing our base and our height, we can plug these into our triangle area formula

area = (b * h)/2

area = (√18 * √72) / 2

area = (√1296) / 2

area = 36 / 2

area = 18 units²