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kirill115 [55]
2 years ago
10

Brian is walking 2 3/4 of a mile everyday. He does this for one week.

Mathematics
1 answer:
laiz [17]2 years ago
6 0

Answer:

1. 11/4

2. 19 1/4

Step-by-step explanation:

To change into an improper fraction:

((2 times 4)+3)/4

=11/4

To calculate total distance:

(11/4) times 7

=77/4

=19 1/4

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Find the particular solution to y'=2sin(x) given the general solution is y=C-2cos(x) and the initial condition y(pi/3)=1
mezya [45]

ANSWER

The particular solution is:

y=2-2 \cos(x)

EXPLANATION

The given Ordinary Differential Equation is

y'=2 \sin(x)

The general solution to this Differential equation is:

y=C-2 \cos(x)

To find the particular solution, we need to apply the initial conditions (ICs)

y( \frac{\pi}{3} ) = 1

This implies that;

C-2 \cos( \frac{\pi}{3} ) = 1

C-2( \frac{1}{2} )= 1

C-1= 1

C= 1 + 1 = 2

Hence the particular solution is

y=2-2 \cos(x)

4 0
3 years ago
F(x)=8_-4x-x^3. g(x)=x^2+7x-9. Find f(x)+g(x)
11111nata11111 [884]

(8 - 4x -  {x}^{3} ) + ( {x}^{2}  + 7x - 9) \\  =  -  {x}^{3}  +  {x}^{2}  - 4x + 7x + 8 - 9 \\  =  -  {x}^{3}  +  {x}^{2}  + 3x - 1
(8x - 4x -  {x}^{3} ) + ( {x}^{2}  + 7x - 9) \\  -  {x}^{3}  +  {x}^{2}  + 8x - 4x + 7x - 9 \\  -  {x}^{3}  +  {x}^{2}  + 11x - 9
The answer is either B, and you forgot to put in the ^2 in the answer choice, or C, and you forgot to put an x where there is a _ in the question.

Check the actual question (the one you recieved, not the one posted here) and see where the mistakes are. If f(x) = 8x - 4x - x^3, then your answer is C. However, if B is actually -x^3 + x^2 + 3x - 1, then the answer is B.
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3 years ago
Can someone explain this for me ? :)
ruslelena [56]
34! Find the area of each of the six sides and then add them up:)
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2 years ago
If x=-1, x^5+x+4+x^3+x
DedPeter [7]

Answer:

0

Step-by-step explanation:

yeah-ya.............. right?

8 0
2 years ago
Read 2 more answers
The square root of a number is between 8 and 9 .Which of these could be that number?
Kay [80]
<u>The answer is C</u>.  This is because the square of 8 is 64 and the square of 9 is 81.  The only number in between those choices is C; 71.

Hope this helps :)

(mind giving me brainliest answer? it helps!)
3 0
3 years ago
Read 2 more answers
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