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vova2212 [387]
2 years ago
11

PLEASE PLEWSE PLEASE HELP

Mathematics
1 answer:
Juliette [100K]2 years ago
6 0

Answer:

C) 63°

Step-by-step explanation:

Just add the numbers up together to get your solution

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If f(1) = 160 and f(n + 1) = –2f(n), what is f(4)?
lions [1.4K]

Answer:

-1280

Step-by-step explanation:

There are 2 ways you could do this. You could just do the question until you come to the end of f(4). That is likely the simplest way to do it.

f(1) = 160

f(2) = - 2 * f(1)

f(2) = -2*160

f(2) = -320

f(3) = -2 * f(2)

f(3) = -2 * - 320

f(3) = 640

f(4) = - 2 * f(3)

f(4) = - 2 * 640

f(4) = - 1280

I don't know that you could do this explicitly with any real confidence.

5 0
3 years ago
Read 2 more answers
-2=12/x<br><br> pleasee answer
Alecsey [184]

Answer:

Step-by-step explanation:

6 0
3 years ago
Whats an approximate equation of a line that passes through the points (-4.3,2.3) and (1.3,-7.4)
Wewaii [24]
Use the 2 points to find the gradient of the line
Gradient = (y - y1)/(x - x1), y and y1 are the two different y values.
(2.3 - - 7.4)/(-4.3 - 1.3) = -97/56 = -1.732
Note: y and x both come from the same coordinate, and y1 and x1 also come from the same coordinates - (x , y), (x1 , y1)

Use the following to find the equation (x, x1, y, and y1 are not the same as the first part)
y - y1 = m(x - x1)

Where x2 and y2 is an intersection (one of the coordinates you used) and m is the gradient you found.
So...
y - 2.3 = -1.732(x - - 4.3)
You can simplify this if you are required to.
4 0
3 years ago
The expression 3 × n can be written without the multiplication sign as 3n. For each expression in parts (a)–(c), Use n = 1, 2, 3
baherus [9]
You can because you already know the number is 3 and the blank number is n
7 0
3 years ago
Marc left his house to drive to work. As he heads down his street, his speed increases steadily until he sees the stop sign at t
Anna35 [415]
The third graph is the correct answer :)
7 0
3 years ago
Read 2 more answers
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