Answer:
The answer is -7.
Step-by-step explanation:
A coefficient is a number placed before and multiplying the variable in an algebraic expression e.g. (4 in 4x)
78 (1 + 2 + 3 . . + 12) so 78/3 = 26 and 11 + 12 + 1 + 2
10 + 9 + 3 + 4
8 + 7 + 6 + 5
that means you will draw one line below the 11 and across to below the 2 and the second line would be above the 8 and across to below the 4.
Seeing is believing . . .draw and label a clock face then add the two lines!
Answer: (-3,-3)
Step-by-step explanation:
(3+-9)/2=-3
(1+-7)/2=-3
Answer: Ray walks to school 3/8 miles (0.375 miles)
Answer:
DB = 6
Step-by-step explanation:
See the attached figure to the question.
Since O is the center of the given circle, so AB and CD are diameters of the circle.
Hence, AO = CO = OD = OB = radius of the circle = 6
In Δ OAC, we have AO = OC. Hence, ∠ A = ∠C = 60° {Given that ∠OAC = 60°}
So, ∠ AOC will automatically become 60°. {As the sum of all the angles of a triangle is 180°}
So, Δ AOC is equilateral triangle.
Now, ∠ AOC = ∠ BOD = 60° {Since, they are vertically opposite angles}
Now, in Δ BOD, we have DO = OB. Hence, ∠ D = ∠ B = 60° {As the sum of all the angles of a triangle is 180°}
So, Δ BOD is also an equilateral triangle.
So, DB = BO = DO = 6. (Answer)