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djverab [1.8K]
3 years ago
10

(4pts)

Mathematics
1 answer:
zubka84 [21]3 years ago
7 0

Answer:

-4.5

Step-by-step explanation:

this the work, -4.5-4.5-4.5-4.5

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(II) Time intervals measured with a stopwatch typically have an uncertainty of about 0.2 s, due to human reaction time at the st
Reil [10]

Answer:

(a) 36.36%

(b) 0.36%

(c) 0.06%

Step-by-step explanation:

Given that the time intervals measured with a stopwatch have an uncertainty of about 0.2 s.

We want to know what is the percent uncertainty of a hand-timed measurement of:

(a) 5.5 s

Percentage = (0.2/5.5) × 100

≈ 36.36%

(b) 55 s

Percentage = (0.2/55)×100

≈ 0.36%

(c) 5.5 min

5.5 min = 5.5 × 60 s

= 330 s

Percentage = (0.2/330)×100

≈ 0.06%

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3 years ago
Math practice <br> Will give brainest if correct
svetoff [14.1K]

Answer:

x > 24

Step-by-step explanation:

12 + 12 = 24

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3 years ago
D. 9.9<br> Math question please show work
34kurt
The ans is B
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5 0
3 years ago
Nelda baked two kinds of pasta in pans. Each pan was the same size she sliced one pan of pasta into 4 equal pieces. She sliced t
Lemur [1.5K]

Answer:

2

Step-by-step explanation:

I found this be adding 4 and 6, witch is 2.

6 0
3 years ago
Read 2 more answers
one number is four times as large as another if the numbers are added together the result is six less than seven times the small
liubo4ka [24]

Answer:

The numbers are 12 and 3.

Step-by-step explanation:

We can solve this problem by working with the information we have and setting up some equations.

We know that one number is four times as large as another. So, let the smaller number be represented by the variable x and the bigger number be represented by 4x, since it is four times as large.

Now, we know that if the numbers are added together, then the result is six less than seven times the smaller number. This can also be represented by the equation 4x + x = 7x - 6.

Let's solve that equation like so:

4x + x = 7x - 6\\5x =  7x - 6\\-2x = -6\\x = 3

So, the smaller number must be 3 (remember that x represented the smaller number). To find the bigger number, all we need to do is multiply 3 by 4, which gives us 12. Therefore, the numbers are 12 and 3.

4 0
3 years ago
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