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inysia [295]
3 years ago
7

18 over 4= I need help I been trying to find out what the answer is please help

Mathematics
1 answer:
Oksana_A [137]3 years ago
5 0
18/4 can be simplified into 9/2 or 4 1/2
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Use the first five terms of the trigonometric series to approximate the value of <img src="https://tex.z-dn.net/?f=sin%5Cfrac%7B
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Answer:b

Step-by-step explanation:

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PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!<br><br> Simplify.
dybincka [34]

The answer is c because you had to simplify the roots in order to get your answer it’s basic math

4 0
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a recipe for ginger cookie uses 4 cups of flour and 2 cups of sugar write a ratio to show the relationship of flour to sugar
yanalaym [24]

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3 years ago
If your friend's doctor wants her target heart rate range to be between 143 and 170, and her
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Answer:

a person can work out 50% of the maximum (50% of 194 is 97) and 85% of the maximum (85% of 194 is 164.9). This means that the target heart rate for a 20-year-old is approximately 97–165 bpm.

Step-by-step explanation:

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8 0
3 years ago
HELP MEHHHHHHHH
yKpoI14uk [10]

Answer:

The correct option is;

B. 50 km/h

Step-by-step explanation:

The information given in the question are;

The distance between the two cities = 140 km

The direction of motion of the first car = From A to B (left)

The direction of motion of the second car = From B to A

The time after which both cars meet = 1 hour

The time duration it takes after both cars meet for the second car to reach A = 35 minutes

The total time taken by the second car from city B to city A = The time it takes to meet the first car + The time it takes after meeting the first car to reach city A

∴ The total time taken by the second car from city B to city A = 1 hour + 35 minutes = 60 minutes + 35 minutes = 95 minutes

95 minutes = 95/60 hours = 1⁷/₁₂ hours =  1.58\bar 3 hours

The speed of the second car = Distance/Time = 140 km/(1.58\bar 3 hours) ≈ 88.42 km/h

Therefore, let the distance from A of the point the first car meet the second car = x

Therefore, we have;

The distance from B of the point both cars meet  = (140 - x) km

Given that both cars meet after one hour, we have;

The distance travelled by the second car coming from city B, after one hour = (140 - x) km = Speed of the second car × 1 hour

88.42 km/h × 1 hour = 88.42 km = (140 - x) km

x = 140 - 88.42 ≈ 51.58 km

The distance from A of the point the first car meet the second car = x = 51.58 km

The speed of car A = (The distance from A of the point the first car meet the second car)/(Time it takes both cars to meet)

∴ The speed of the first car = 51.58 km/(1 hour)

The speed of the first car = 51.58 km/h ≈ 50 km/h (Rounding up to the nearest 10th).

5 0
2 years ago
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