Angle between 16 and 18 = 90 + 55 = 145°
Answer:
x = -1/2 x=-1
Step-by-step explanation:
2x( x+1.5) = -1
Distribute
2x^2 + 3x = -1
Add 1 to each side
2x^2 +3x+1 = 0
Factor
(2x+1) (x+1) =0
Using the zero product property
2x+1 = 0 x+1=0
2x = -1 x=-1
x = -1/2 x=-1
Example Problem:
Billy goes to the nurse and she says Billy is 4 Feet 6 Inches. Billy's mom wants to know how many inches tall Billy is. How tall is Billy on Inches?
Solution:
Billy is 54 Inches tall.
=(4 × 12) + 6
=48 + 6
=54 Inches
Explanation:
You are converting the larger unit to the smaller one because you are trying to find how tall Billy is in inches and you know Billy is 4 feet 6 inches, so you need to convert 4 feet to inches.
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The number of viruses was 4000 times greater than number of protozoa.
Step-by-step explanation:
Given,
Number of protozoa = 
Number of viruses = 
Let,
x be the number of times number of viruses is greater than number of protozoa.
Number of viruses = Number of time * Number of protozoa
Dividing both sides by
The number of viruses was 4000 times greater than number of protozoa.
Keywords: division, scientific notation
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If we call y the height of the plane, we know when the time (x) is 0, the height is 30000. So let's write that in:
y = 30000 + (0)
Then, for every increase of a minute (x increases by 1), the height reduces by 2000. This can be written as:
y = 30000 - 2000x
Using what we know about y = mx+c equations, the slope of the line is -2000, and the y-intercept is (0, 30000).
