Answer and Explanation:
Brielle will run the marathon faster.
Work:
Brielle: 13.1/1.25=10.48*10=104.8 minutes
Joshua: 13.1/1.5=8.73...*18=157.2 minutes
Brielle finished in 104.8 minutes.
Joshua finished in 157.2 minutes.
Brielle finished the half marathon race by 52.5 minutes faster than Joshua.
Hope this helps!!! PLZ MARK BRAINLIEST!!!
Answer:
106
Step-by-step explanation:
See attached
Answer: The correct option is A.
Explanation:
The slope intercept form is,
Where m is slope.
The point slope form is,
Where m is slope.
On Comparing the first equation with slope intercept form, we get m = -8.
On Comparing the second equation with point slope form, we get m = -2.
On Comparing the third equation with slope intercept form, we get m = 7.
On Comparing the Fourth equation with point slope form, we get m = 6.
The steepest line have greatest absolute slope value.
Since the equation 1 has greatest absolute slope value,i.e., 8 therefore option A is correct.
Please use " ^ " to denote exponentiation:
<span>f(x) = –(x + 8)^2 – 1
Find the first derivative: f '(x) = -2(x+8)(1)
Set this = to 0: -2(x+8) = 0
solve for x: x = -8
Divide the number line into subintervals based upon x=-8:
(-inf, -8) and (-8, inf)
Choose a test value for x from each interval, e. g., -10 from the first interval and 20 from the second.
Subst. this test value into the derivative, shown above.
If the result is + the function is incr on that interval; if - the fn. is decr.
Questions welcome!</span>
Answer:
D
Step-by-step explanation:
