One number is 9 times a first number. a third number is 100 more than the first number. if the sum of the three numbers is 727,
find the numbers.
1 answer:
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Answer:
Graph in the image attached.
Step-by-step explanation:
Using the model of a linear equation, we have:
'b' is the y-intercept of the equation, that is, the inicial value of G, when D = 0.
So if David starts the trip with 14 gallons of gas, we have b = 14.
'a' is the slope of the line, that is, an increase of 1 in the value of D causes an increase of 'a' in the value of G.
So if the car uses one gallon every 20 miles, the value of a is -1/20 (an increase of 20 in D causes a decrease of 1 in G).]
So our equation is:
The graph of this equation is in the image attached.
Answer:
tana + tanb
Step-by-step explanation:
Using the trigonometric identities
• sin(a + b) = sinacosb + cosasinb
• tanx = , then
=
= +
= +
= tana + tanb