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3 years ago

PLEASE HELP Will mark BRAINLIEST

Mathematics

1 answer:

Lerok [7]3 years ago

8 0

i just want tp know what app this is or what yall are learning over here

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SOVing Problems With Right Triangles: Mastery Test

Serhud [2]

Answer:

13.86 ft

Step-by-step explanation:

This can be represented by a right angled triangle with a hypotenuse of 16 feet and an angle of 60° between the hypotenuse side and the adjacent side.

The height of the pole is the side opposite to the angle 60°.

The trigonometric function states that for a right angled triangle:

sinθ = opposite / hypotenuse, cosθ = adjacent / hypotenuse, tanθ = opposite/ adjacent

To find the height of the flagpole, we use:

sin(60) = height / 16

height = 16 * sin(60)

height = 13.86 ft

The person with the incorrect reasoning for the height of the flagpole is Charlie when he should have utilized the sin function. Because he incorrectly selected the function.

7 0

3 years ago

PLEASE HELP. Please show all work. Im giving 80 points to whoever answers it first.

mr_godi [17]

Answer:

1.1) B=12.42°, C=146.58°, c=15.37

1.2) B=8°, C=124°, c=35.7

2) In the case of SSA, when the given angle A is acute (<90°), the side "a" (opposite to the given angle "A") is less than the other given side "b" (a<b), and a > b sinA.

3.1) Perimeter = 31.37 units, Area = 16.5 square units

3.2) Perimeter = 73.70 units, Area = 75.6 square units

4.1) Magnitude of vector AB=5.1

4.2) Direction of vector AB=348.69°

5.1) The dot product of two vectors is equal to the sum of the product of their components

5.2) a . b = 10

6.1) Trigonometric form: z = 3√2 (cos 315°+ i sin 315°)

6.2) The 4th roots are:

w1 = 18^(1/8) [cos(78.75°) + i sin(78.75°)]

w2 = 18^(1/8) [cos(168.75°) + i sin(168.75°)]

w3 = 18^(1/8) [cos(258.75°) + i sin(258.75°)]

w4 = 18^(1/8) [cos(348.75°) + i sin(348.75°)]

Step-by-step explanation:

3.1) Perimeter: P = a+b+c → P = 10+6+15.37 → P = 31.37

Area: A = a b sinC / 2

Replacing the known values:

A = (10)(6) sin 146.58325418° / 2 → A = 60(0.55072472) / 2 →

A = 16.52174152 → A = 16.52 square units

3.2) Perimeter: P = a+b+c → P = 32+6+35.70 → P=73.70

Area: A = a b sin C /2

Replacing the known values:

A = (32)(6) sin 123.99036327° / 2 → A = 192(0.82913161) / 2 →

A = 75.59663485 → A = 75.6 square units

3 0

3 years ago

32 is very much need to be answered

vova2212 [387]

Question 32):

Least To Greatest:

-7/2, -2.8, -5/4, 4/3, 1.3

Number of Inputs:

5

Ascending Order (Least to Greatest)/Smallest to Largest:

-7/2, -2.8, -5/4, 1.3, 4/3

Descending Order (Greatest to Least/Largest to Smallest):

4/3, 1.3, -5/4, -2.8, -7/2

Hope that helps!!! : )

3 0

3 years ago

Is the square root of 1.69 rational or irrational?

Andrei [34K]

Its rational
Square root of 1.69 is 1.3 which is rational ( 1.3 = 13/10)

5 0

3 years ago

The answer to the length of x is in mm. please help!

romanna [79]

Answer:

3.69 mm

Step-by-step explanation:

So it's a right triangle so you can use a^2+b^2=c^2

Plugging in what we know the equation becomes:

2.8^2+2.4^2=c^2 (C = x because x is the hypotenuse)

7.84+5.76=c^2

13.6=c^2

The square root of 3.68782 which rounds to 3.69

So x=3.69mm

4 0

3 years ago