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4 years ago

Which rational number is the greatest 0.55 0.6 9/20 1/2

Mathematics

2 answers:

Tatiana [17]4 years ago

7 0

0.6 =60%
1/2 =50%
0.55 = 55%
9/20 = 45%
So 0.6 hope I helped

devlian [24]4 years ago

6 0

0.6 because it is more than 0.55, 9/20 (.45), and 1/2 (.5)

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Find the measurement indicated. Round to the nearest tenth.

fiasKO [112]

9514 1404 393

Answer:

22.0
15.0
30.0°
137.0°

Step-by-step explanation:

These are all Law of Cosine problems. A generic expression for the length of side 'c' opposite angle C, which is defined by sides 'a' and 'b' is ...

c² = a² +b² -2ab·cos(C)

The square root of this gives the side length:

c = √(a² +b² -2ab·cos(C))

Rearranging the equation, we can obtain an expression for the angle C.

C = arccos((a² +b² -c²)/(2ab))

These two formulas are used to solve the offered problems.

1) AC = √(13² +14² -2·13·14·cos(109°)) ≈ √483.506

AC ≈ 22.0

2) BC = √(7² +10² -2·7·10·cos(123°)) ≈ √225.249

BC ≈ 15.0

3) ∠B = arccos((24² +28² -14²)/(2·24·28)) = arccos(1164/1344)

∠B ≈ 30.0°

4) ∠B = arccos((6² +9² -14²)/(2·6·9)) = arccos(-79/108)

∠B ≈ 137.0°

4 0

3 years ago

The sum of two segments are 75 cm, and one the segments are four times the other. Calculate the measurement of each segment

iVinArrow [24]

The length of one segment is 15 cm and other segment is 60 cm

Step-by-step explanation:

Let x be the length of one segment and y be the length of other segment

Then according to given statement

x+y=75 Eqn 1

And

one the segments are four times the other

x=4y Eqn 2

$Putting\ x=4y\ in\ equation\ 1$

$4y+y=75\\5y=75\\Dividing\ both\ sides\ by\ 5\\\frac{5y}{5}=\frac{75}{5}\\y=15\\Putting\ y=15\ in\ eqn\ 2\\x=4(15)\\x=60$

Hence,

The length of one segment is 15 cm and other segment is 60 cm

Keywords: Linear Equation, Variables

Learn more about linear equations at:

#LearnwithBrainly

8 0

3 years ago

4 5x−4≥12 OR 12x+5≤−45

Oksanka [162]

Answer:

its 98

Step-by-step explanation:

first add the n sub.

6 0

3 years ago

Find the percent increase. Round to the nearest percent.

erastovalidia [21]

Answer:

I believe the answer is a 45.7831% increase

46%

Step-by-step explanation:

I may be wrong but I hope it's correct!

Hope this helps!

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3 years ago

The volume of a cylinder is 40 ft3. Which expression represents the volume of a cone with the same base and height as the

Ber [7]

Answer:

1/3(40)ft³

Step-by-step explanation:

volume of cone=1/3 volume of cylinder

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8 0

3 years ago