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yaroslaw [1]
2 years ago
14

Some studies show that high school students are more successful when the school day begins after 9 am. To test this theory,

Mathematics
1 answer:
Alex Ar [27]2 years ago
6 0

Answer:

It's probably B

Step-by-step explanation:

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Suppose a baby food company has determined that its total revenue R for its food is given by R = − x 3 + 39 x 2 + 945 x where R
Paraphin [41]

Answer:

35,000 units

Step-by-step explanation:

Total revenue is:

R = -x^3+39x^2+945x

The maximum revenue is attained at the production level for which the derivate of the revenue function is zero:

R = -x^3+39x^2+945x\\R'=0=-3x^2+78x+945\\x=\frac{-b\pm\sqrt{78^2-(4*(-3)*945)} }{-6}\\x_1=35\\x_2=-9

Since production cannot be negative, revenue will be at a maximum when x = 35, or when the production level is 35,000 units.

4 0
3 years ago
Write the equation of the line that passes through (2, 4) and has a slope of –1 in point-slope form.
Tems11 [23]
Y - y1 = m(x - x1).....this is point slope form
slope(m) = -1
(2,4)...x1 = 2 and y1 = 4
now we sub
y - 4 = -1(x - 2) <===
3 0
3 years ago
Find a so that the point (-1, 2) is on the graph of f(x)=ax^2+5.
Gnesinka [82]
We are asked to determine the value of a such that the function f(x) = ax^2 + 5 is fit for the point given (-1,2). In this case, we substitute 2 to y and -1 to x. The result is then 2 = a*(-1)^2 + 5 ; 2 = a + 5; a is then equal to -3
4 0
3 years ago
Find the measure of &lt;1. A) 104 degrees, B) 76 degrees , C) 38 degrees<br> Help due in 5 minutes
Annette [7]
It’s c because the triangle is a isosceles triangle meaning both base angles are the same! So a triangle equals 180°. So you subtract 104 from 180. Then divide it by 2 since the base angles are the same

180-104= 76

76/2=38°
3 0
3 years ago
PLEASE!!! I NEED THIS ANSWER DESPERATELY
Natasha_Volkova [10]
The answer to this question is 14 degrees Fahrenheit.
T(60) = (-7/6)(60) + 84 = 14
7 0
3 years ago
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