Answer: - 3
Step-by-step explanation: please see attachment for explanation
What is the sum (2x10^16) +(7x10^16) = in scientific notation? Please help
1 answer:
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First put the given equations into the form, y = mx + c, as follows:
For perpendicularity, the product of the slopes must equal negative one.
Solving for k, we get:
The correct choice is C.
For perpendicularity, the product of the slopes must equal negative one.
Solving for k, we get:
The correct choice is C.
Answer:
a = 120°
b = 60°
Step-by-step explanation:
Angle a and 60° are suplementary. The sum of supplementary angles is 180° (straight angle).
a + 60° = 180°
a = 180° - 60°
a = 120°
The sum of angles in the quadrilateral is 360°. Notice how two of the angles in the quadrilateral are marked as right angles (angles marked with a square). Each of them is 90°.
b + 90° + a + 90° = 360°
Substitute a with the value calculated in the previous step.
b + 90° + 120° + 90° = 360°
Solve for b.
b + 300° = 360°
b = 60°
