A. Always
These lines<span> are </span>perpendicular<span> since their slopes are negative reciprocals.</span>
The equation of the best fit line is
y = 0.1073x + 4.5365
where
x is the number of leg press reps
y is the time it takes to do a 40 yard dash
For 22 leg press reps"
y = 0.1073(22) + 4.5365
y = 6.8963 s
Answer:
6
Step-by-step explanation:
Multiply the constants, add up the exponents
4*(-3)*(-7)=84
1+8+3=12
so the result is 84x^12
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the complete question in the attached figure
we know that
sin40° = opposite side / hypotenuse
opposite side =AC
hypotenuse = AB-------> 10 in
so
sin 40=AC/AB---------> AC=AB*sin 40-------> AC=10*sin 40
the answer is
AC=10*sin 40