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Rudik [331]
3 years ago
13

Which is least time 9.75, 9 7, or 9.675

Mathematics
1 answer:
Dominik [7]3 years ago
5 0
The least one is 9.675
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The polynomial −16t^2+550 gives the height of a ball t seconds after it is dropped from a 550-foot-tall building. Find the heigh
zhenek [66]

Answer:

486 feet

Step-by-step explanation:

h = -16t² + 550

h = -16(2)² + 550

h = 486

7 0
3 years ago
After being exposed to electro magnetic shrinking machine Joe’s height decrease by 120 cm over 1.5 seconds is high decrease by t
AysviL [449]

Answer:

80cm/s

Step-by-step explanation:

120/1.5=80cm/s

can u pls mark as brainliest :)

7 0
3 years ago
Colin buys a tv for £800. It depreciates at a rate of 1% per year. How much will it be worth in 2 years? Give your answer to the
bezimeni [28]

Answer: £784.08

Step-by-step explanation:

First find 1% of 800, which is 800/100=£8

800-8= £792 after 1 year

find 1% of 792, which is 792/100=£7.92

792-7.92= £784.08

6 0
3 years ago
Suppose that 8% of the general population has a disease and that the test for the diesease is accurate 70% of the time. What is
balu736 [363]

Answer:

P = 0.332

Step-by-step explanation:

The probability of having the disease is 0.08

The probability that the test predicts with accuracy is 0.7.

We need to find the probability that the test positive for the disease.

Several cases may occur.

Case 1.

You have the disease and the test predicts it accurately

P_1 = 0.08(0.7) = 0.056

Case 2

You do not have the disease and the test predicts that you have it

P_2 = 0.92(0.3) = 0.276

Then the probability that the test predicts that you have the disease is the union of both probabilities P1 and P2

P = P_1 + P_2\\\\P = 0.056 + 0.276\\\\P = 0.332

8 0
3 years ago
Estimate a 25% tip on a bill of $68.28 by first rounding the bill amount to the nearest ten dollars.
diamong [38]

Answer:

first round 68.28 to 70.00 then get 25% which is 17.50 so the tip would be 17 dollars

Step-by-step explanation:

7 0
3 years ago
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