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Aloiza [94]
3 years ago
12

Let k(t) be a measure of the knowledge you gain by studying for a test for t hours. which do you think is larger, k(8) − k(7) or

k(3) − k(2)
Mathematics
1 answer:
spayn [35]3 years ago
5 0
K(3)-k(2) because if you studied for 8 hours or 7 hours it is almost like the same that you know all of them but 3 hours or 2.
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2x + 8x + 4x<br>PLZZZZ HELP ​
nataly862011 [7]

Answer: 14x

Step-by-step explanation:

3 0
3 years ago
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You are at the store, and are trying to remember how much bread, meat, and cheese you were supposed to buy. The bread costs $1 p
MrMuchimi

Answer:

  • 4 bread loafs, 1 pound of meat, 3 pounds of cheese

Step-by-step explanation:

Let loaf of bread be b, meat be m and cheese be c

<u>Based on the given, we have following equations:</u>

  • b + m + c = 8
  • c = 3m
  • b + 4m + 3c = 17

<u>Subtract the first equation from the third and substitute c with m:</u>

  • b + 4m + 3c - (b + m + c) = 17 - 8
  • 3m + 2c = 9
  • 3m + 2(3m) = 9
  • 9m = 9
  • m = 1

<u>Then</u>

  • c = 3*1 = 3
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7 0
3 years ago
The ratio of two numbers is 3 to 7. If the sum of the two numbers is 50, what are the two numbers. Please show all work
Mamont248 [21]

it is 15 to 35

cuz 3 plus 7 is 10 and 50 divided by 10 is 5 and then multiply 3 times 5 and 7 times 5 which equals 15 to 35 and 15+35=50

5 0
3 years ago
If the flare is launched with an initial velocity of 144 feet per second, find the height after 2 seconds. The answer is not 288
salantis [7]

Answer:

The height = 223.6 ft

Step-by-step explanation:

∵ Initial velocity (u) = 144 ft/sec

∵ t = 2 sec

∵ a = - 32.2 ft/sec²

∵ h = ut + 1/2 at²

∴ h = 144(2) +1/2 (-32.2 × 4) = 288 + 1/2( -128.8) = 223.6 ft

6 0
3 years ago
How can you yes integers to solve real world problems
Gnom [1K]
Stocks are a good example.
7 0
4 years ago
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