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Lubov Fominskaja [6]
3 years ago
12

Determine which of the two acute angles has a cosine of 4/5.

Mathematics
1 answer:
Montano1993 [528]3 years ago
6 0

Answer:

CosA = 4/5

Step-by-step explanation:

The acute angle with cosine of 4/5

Recall from trigonometry ;

Cosine = Adjacent / hypotenus

From the right angled triangle Given:

For angle A :

Opposite = BC = 8

Hypotenus = AC = 10

Cos A = BC / AC = 8 /10 = 4 /5

CosA = 4/5

For C :

Opposite = AB = 6

Hypotenus = AC = 10

Cos C = 6 /10 = 3 /5

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Amanda [17]

1.25 /5

12/5 = 2  with 2 left over

25/5 = 5

2 numbers

1.25 /5 = .25

Each person gets .25 of a pizza

4 0
3 years ago
Read 2 more answers
The YMCA lap pool is a right rectangular prism 36.8\, \text{m}36.8m36, point, 8, start text, m, end text long by 20 \,\text{m}20
PilotLPTM [1.2K]

Volume is a three-dimensional scalar quantity. The depth of the YMCA lap pool is 2 meters.

<h3>What is volume?</h3>

A volume is a scalar number that expresses the amount of three-dimensional space enclosed by a closed surface.

Given that the following details about the YMCA lap pool:

  • The volume of the pool = 1472m³
  • The length of the pool = 36.8m
  • The width of the pool = 20 m

Since the pool is in the space of a right rectangular prism, therefore, the volume of the prism will be the product of length, width and depth. Therefore, the volume of the pool can be written as,

The volume of the pool = Length × width × depth

1472m³ = 36.8m × 20 m × depth of the pool

Depth of the pool = (1472m³ ) / (36.8m × 20m)

                              = 2 meter

Hence, the depth of the YMCA lap pool is 2 meters.

Learn more about Volume here:

brainly.com/question/13338592

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3 0
1 year ago
This isn't really a school-related question.It's more of a conflict I have with my self. So: I have a friend that constantly cop
ycow [4]
Well to be honest, you need to straight forward to her and tell her that you do not appreciate her copying you and tell her you dont want to be rude or anything, but this needs to stop.
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i need help asap!!How far can Lance Armstrong travel if he averages 28 miles per hour for 3 hours and 45 minutes?
Murrr4er [49]

Answer:

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Step-by-step explanation:

The first important thing to recognize is that 45 minutes is equal to .75 of an hour.  (3/4).


Now, it's a rate * time problem.


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A triangle has an area of 56 square units it's height is 14 units
kobusy [5.1K]
The formula for the area of a triangle is 1/2*b*h=a.
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3 years ago
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