Pippa is holding the end of her kite string 1.4 m above the ground. The kite string rises at 63° angle of elevation. Pippa has l
et out all 75 m of the string.
To the nearest tenth of a meter, how high above the ground is the kite?
A) 34.0 m
B) 35.4 m
C) 66.8m
D) 68.2 m
To the nearest tenth of a meter, how high above the ground is the kite?
A) 34.0 m
B) 35.4 m
C) 66.8m
D) 68.2 m
2 answers:
The figure shows the exact form of the given information.
We are given angle of elevation 63° and hypotenuse ( length of kite) is 75m.
Now we are also given that Pippa is holding the kite 1.4m above the ground.
So referring to the figure, height of kite from ground = 1.4m + x
We have to find x now.
0.891 =x/75
x=0.891 * 75 = 66.825
Answer : height of kite is 1.4 + 66.825 that is 68.225 m.
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Answer:
The required expression is:
- y = 0.5x + 3
Please check the attached graph too.
Step-by-step explanation:
The slope-intercept form of the linear or line function
where
- m is the rate of change or slope
- b is the y-intercept
In our case,
The cost of hiring a taxi consists of a fixed cost of $3. It means the fixed cost of $3 is the initial condition.
Thus, the y-intercept b = 3
It is stated that the cost of per kilometer distance = $0.5
Thus, the rate of change or slope m = 0.5
As y represents the cost and x represents the number of kilometers.
so substituting m = 0.5 and b = 3 in the slope-intercept form of the linear or line function
y = mx+b
y = 0.5x + 3
Thus, the required expression is:
- y = 0.5x + 3
Please check the attached graph too.
