First one is -1. The second one is 1/2.
Answer:
max height = 7.5 ft
1.3 ft far
Please check below for the detailed answer
Step-by-step explanation:
<u>Given: </u>
f(x) = −0.3x^2 + 2.1x + 7
a) To obtain the maximum height , find f'(x)
f'(x) = - 0.6x + 0.8 = 0
=> x = 0.8 / 0.6 = 1.33 feet
So f(x) is maximum at a horizontal distance of 1.33 ft
To find the max height , find f(1.33)
f(x) = −0.3x^2 + 2.1x + 7, plug in 1.33 for x
=> f(1.33) = −0.3(1.77) + 0.8(1.33) + 7 = 7.5 ft
So the answer is
Maximum height = 7.5 ft , and 1.3 ft far from where it was thrown.
First, it is important to understand that the domain is all possible x values and the range is all possible y values. So for this specific graph, the domain is -4≤x≤-1 and 0≤x<3) and the range is -1<y≤4. The second and fourth choices are correct.
First, we know the graph is not defined for all values of x because the domain only refers to certain x values.
The second choice is true because the range extends from -1 to 4, so 4 is the largest possible value.
The third statement is incorrect because even though our domain extends from -4 to 3, 3 is noninclusive (open circle).
Choice four is correct: that is the same as the range listed above.
The last choice is incorrect because no x values between -1 and 0 are defined.
Hope this helps.
Answer:
ME 10. A salesperson advertises an increase of 100% in the radius of a new water pipe into a
ME
10. A salesperson advertises an increase of 100% in the radius of a new water pipe into a building.
a) The new pipe radius is how many times the size of the old radius?
b) By what factor will the flow rate of water through the pipe increase?
c) If the old pipe carried water at a rate of 10 gallons/second, at what flow rate will the
new pipe carry water?
d) What is the percentage increase in the flow rate of water in the new pipe?
The 8th person is sitting across from the 2nd person