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ivanzaharov [21]
3 years ago
8

What is the sum of -3^2-7x+9and -5^2+6x-4

Mathematics
1 answer:
victus00 [196]3 years ago
6 0

Answer:

9-7x+9+25+6x-4=47-x

Step-by-step explanation:

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Pls help meeee!!! I have benchmarks monday
quester [9]

Answer:

therefore the correct options are:

B. the equation is an exponential decay equation.

F. $28000 represents the initial cost of an automobile that depreciates 27% per year  over the course of t years.

Step-by-step explanation:

i) the cost of an automobile is given by the equation is

 C(t) = 28000\times(0.73)^{t}, where C(t) represents the cost and t represents the time in years

ii) the above equation is an exponential decay equation. It is a decay equation because growth rate is 0.73 which is less than 1 and greater than zero.

ii) when t = 0 then the cost is C(0) = 28000 represents the initial cost.

iii) from the equation in i) we can understand that the cost depreciates 27% per year over the course of t years.

therefore the correct options are:

B. the equation is an exponential decay equation.

F. $28000 represents the initial cost of an automobile that depreciates 27% per year  over the course of t years.

5 0
3 years ago
Evaluating integral by net area
N76 [4]

The graph of f(x)=2 is a horizontal line. So the area under f(x) on [0, 8] is equal to the area of a rectangle with length 8 and height 2, or 16.

The graph of g(x)=\sqrt{64-x^2} is the upper half of a circle with radius \sqrt{64}=8. It's symmetric about x=0, so on the interval [0, 8], we're considering a quarter of the circle. The area of such a sector is \frac{\pi 8^2}4=16\pi.

Then use the fact that the definite integral is distributive over sums, meaning

\displaystyle\int_0^8f(x)+g(x)\,\mathrm dx=\int_0^8f(x)\,\mathrm dx+\int_0^8g(x)\,\mathrm dx=16+16\pi

8 0
3 years ago
What is 2(x-3) = 14<br> X= ?
HACTEHA [7]

Answer:

X=4 hope this helped :)

Step-by-step explanation:

2(x-3)=14

2x-6=14

2x= 14-6

2x=8

x= 4

8 0
3 years ago
PLEASE HELP Show all Your work 25 points will give brainly
julsineya [31]

Answer:

x=9

Step-by-step explanation:

√117²=x²+6²

117=x²+36

x²=117-36

x²=81

x=9

6 0
3 years ago
What is 4 1/6 divided by 10 in simplest form
Scilla [17]
10/7,8 ...................
3 0
3 years ago
Read 2 more answers
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