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Arisa [49]
3 years ago
12

For problems 1-6 use the triangle to the right to find the given trigonometric ratios

Mathematics
1 answer:
bezimeni [28]3 years ago
7 0
Cos N = 3/5
Sin N = 4/5
Tan N = 4/3
Sin P = 9/15 or 3/5
Cos P = 12/15 or 4/5
Tan P = 9/12 or 3/4
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Calculate the area, with the appropriate number of significant figures, of a rectangular room that is 14.10 m wide by 15.0 m lon
Paladinen [302]
<h3>Answer: Choice A) 212 square meters</h3>

========================================================

Explanation:

14.10 has four sig figs. The 0 at the end is significant. This measurement is accurate to the hundredths place. If the author wrote 14.1, then it would be accurate to the tenths place with three sig figs.

15.0 has three sig figs. The 0 is significant. If they wrote 15 or 15. then we'd be dealing with 2 sig figs instead; however they placed the 0 there to tell the reader "this measurement is accurate to the tenths place"

---------------------

Multiply the values given

14.10*15.0 = 211.5

Round that to three sig figs. We pick the smaller sig fig count to round to since we cannot be certain it is accurate to four sig figs. In a sense, we pick the weakest link and use that to determine rounding when it comes to multiplication and division.

This means 211.5 rounds to 212

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4 years ago
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yanalaym [24]

Answer:

4x + 3x = 42

Step-by-step explanation:

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4 years ago
What is the discriminant of the quadratic equation 0 = –x2 + 4x – 2?<br> –4<br> 8<br> 12<br> 24
Papessa [141]

Answer:

8

Step-by-step explanation:

Δ=b²-4ac

Δ=4²-4*-1*-2

Δ=16-8

Δ=8

7 0
3 years ago
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To check out a customer, a grocery store cashier needs 2 seconds to scan each item being purchased, as well as 30 seconds to pro
sattari [20]

Answer:

7

Step-by-step explanation:

Let's say the customer has x items. For each item, we add 2 seconds. For 3 items, we need 2 + 2 + 2 = 2*3 seconds. For x items, we need 2 * x seconds. Then, we add the processing payment time of 30 seconds, so for x items, the total amount of time = 30 + 2 * x

Here, the total amount of time is 44, so we have

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subtract 30 from both sides to isolate the variable and its coefficient

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divide both sides by 2 to isolate x

x = 7

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3 years ago
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i cant see the entire screen, but just look at the letter, and say which point it is

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