The sign of f on the interval -7/3 < x < -3/5 is always positive.
<h3>How to solve for the sign on the interval</h3>
We have the equation
(5x+3)(x−2)(3x+7)(x+5) > 0
Now when f(x) > 0
Then -7/3 < x < -3/5
This would tell us that the sign would become positive when it changes from the less than to greater than sign
<h3>Complete Question</h3>
f(x)=(5x+3)(x-2)(3x+7)(x+5) has zeros at x=-5, x=-7/3, x=-3/5, and x=2
What is the sign of f on the interval -7/3<x<-3/5?
answer choices
f is always positive on the interval
f is always negative on the interval
f is sometimes positive and sometimes negative on the interval
f is never positive or negative on the interval
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The answer is 1/6 because it is dividing by 6 each time
Answer:
1.875 hours
Step-by-step explanation:
easier way
2 miles in 3/4 hours
so
2 miles / .75 hours = 5 miles / x hours
solve for x
(5*.75)/2 = x
x=1.875
or
harder way
you could turn hours into minutes
2 miles in 45 mins
so
2 miles / 45 mins = 5 miles / x mins
solve for x
(5*45)/2 = x
x= 112.5 mins
but they want answer in hours so turn mins into hours by diving by 60
112.5/60 = 1.875 hours
£1400
A reduction of 40% means that £840 is 60% of the original price
Divide £840 by 60 to find 1% then multiply by 100 to find original price
original price = £840 ×
= £1400
Answer:
58°
Step-by-step explanation:
subtract 32 from 90 and you get the measure of x°
hope this helps