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Yuliya22 [10]
3 years ago
12

What is the area of a triangle with a base of 55 cm and a height of 78 cm?

Mathematics
2 answers:
Fittoniya [83]3 years ago
4 0

Answer:

2145 cm2

Step-by-step explanation:

yKpoI14uk [10]3 years ago
4 0

Answer:

2145

Step-by-step explanation:

To find the area of a triangle you use the equation Height x Base divided by 2

so you would do 55 multiplied by 78 which would get you 4290

then you would divide  it by 2 to get 2145

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The total sales of a company (in millions of dollars) t months from now are given by S(t) = 0.03t3 + 0.5t2 + 9t + 4. Find S'(t).
o-na [289]

Answer:

S'(t) = 0.09t^2 + t + 9

S(2) = 24.24

S'(2) = 11.36

S(11) = 203.43 means that the sales of the company 11 months from now is $203,430,000.

S'(11) = 30.89 means that, 11 months from now, the rate at which sales change is $30,890,000 per month

Step-by-step explanation:

The derivate of the sales function S'(t) , which is the rate at which sales vary with time in months, is:

\frac{dS(t)}{dt} =S'(t) = 0.09t^2 + t + 9

S(2) is found by applying t=2 to S(t):

S(2) = 0.03*(2^3) + 0.5*(2^2) + 9*2 + 4\\S(2)= 24.24

S'(2) is found by applying t=2 to S'(t):

S'(2) = 0.09*(2^2) + 2 + 9\\S'(2) = 11.36

Since the sales function gives the amount of sales in millions of dollars,

S(11) = 203.43 means that the sales of the company 11 months from now is $203,430,000.

S'(t) represents the rate of change in sales in millions of dollars per month.

S'(11) = 30.89 means that, 11 months from now, the rate at which sales change is $30,890,000 per month

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3 years ago
-7x+12-2x=23+13x simplify by combining like terms that are on the same side of the equation
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Answer:

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