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antiseptic1488 [7]
3 years ago
11

78x5 = multiply the ten by 5

Mathematics
1 answer:
victus00 [196]3 years ago
3 0
The answer would be 750
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Two gears are connected and are rotating simultaneously. The smaller gear has a radius of 4 inches, and the larger gear has a ra
pychu [463]
Draw a diagram to illustrate the problem as shown below.

When the smaller gear rotates through a revolution, it sweeps an arc length of
2π(4) = 8π inches.

Part 1
The same arc length is swept by the larger gear. The central angle of the larger gear, x, is
7x = 8π
x = (8π)/7 radians = (8π)/7 * (180/π) = 205.7°

Answer: 205.7° (nearest tenth)

Part 2
When the larger gear makes one rotation, it sweeps an arc length of 
2π(7) = 14π inches.
If the central angle for the smaller gear is y radians, then
4y = 14π
y = 3.5π radians = (3.5π)/2π revolutions = 1.75 revolutions

Answer:
The smaller gear makes 1.75 rotations

7 0
3 years ago
Abdul purchased n notebooks. They were 4 dollars each. Write an equation to represent the total cost c that Abdul paid.
Marysya12 [62]
This is the equation. Try it for yourself and see if it works.

C= n x 4
8 0
3 years ago
Read 2 more answers
One side of a square flower bed is 16 feet long. How many plants are needed if they are to be spaced 16 inches apart around the
svetoff [14.1K]
Convert the 16 feet to inches by multiplying 16 by 12 to get 192 inches, then divide that by 16 inches to get your answer that is equal to 12. Hope I could help!
5 0
3 years ago
the probability that andrea's train is late is 0.05.workout the probability that her train is not late
bazaltina [42]
The answer would be 0.95 totaling 1 as there is only 1 chance that this will happen
4 0
3 years ago
Help me on this questions please. ​
Pepsi [2]

Answer:

The formula for exponential growth is f(x)=a(1+r)^x, where a is the initial amount/number, r is the growth rate, and x is the number of years/month/etc. The problem tells us that the initial area is 4500. Every year, it decreases by 7.25%, which is technically -0.0725. "t" is the time. Therefore, we plug in those values into the formula. Then, we have:

f(x) = 4500(1-0.0725)^t

f(x) = 4500(0.9275)^t.

4 0
3 years ago
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