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lesya692 [45]
2 years ago
13

Find the length of BC

Mathematics
1 answer:
Ivan2 years ago
6 0

Answer:

13.3650978628

Step-by-step explanation:

Angle A=180-(Angle B+C)=180-117=63

Here,

b=BC, p=AC & AB=12

Using the relation of cos,

cosx=b/h

cos27=BC/15

15cos27=BC

Using a calculator,

BC=13.3650978628

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A bag has 5 yellow marbles, 3 red marbles and 2 blue marbles. Quinn randomly picks a marble from the bag and returns it before a
agasfer [191]

Answer:

Quinn can expect to pick blue 40 times

Step-by-step explanation:

the probability of picking blue is stated as 2/10 which can be reduced to 1/5

multiply the number of times they pick a marble ( shown as 200) by the probability of picking a blue one ( 1/5)

200 x 1/5 = 200 / 5 = 40

Quinn can expect to pick blue 40 times

6 0
3 years ago
Read 2 more answers
Two fifth of a certain number plus two is equal to ten​
Fed [463]

Answer:

that no. is 20

Step-by-step explanation:

let us take that certain no. as x

so

2/5. x +2=10

2x/5 = 10-2

2x = 8×5

x= 40/2

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3 0
3 years ago
Choose the point-slope form of the equation below that represents the line that passes through the point (6, −3) and has a slope
Leokris [45]
Y - y 0 = m ( x - x 0 )
x 0 = 6, y 0 = -3,  m = 1/2
The point-slope form of the equation is:
y + 3 = 1/2 ( x - 6 )
3 0
3 years ago
Jim’s backyard is rectangular with dimensions of 80 feet by 120 feet. He is planning to designate part of the yard to plant a ve
mariarad [96]
Solution: 5,400 feet^2
Step by step solution:
3/4=0.75
(80*0.75)(120*0.75)
(60)(90)
5400
5,400 feet^2
Hope that helps :)
5 0
2 years ago
The nose of the origami dog is a right angle with sides that are 2 cm, 3 cm, and 3.6 cm long. What is the area of this triangle?
Maslowich

Given:

The sides of a right triangle are 2 cm, 3 cm, and 3.6 cm.

To find:

The area of the right triangle.

Solution:

Area of a triangle is:

Area=\dfrac{1}{2}\times base\times height

In the given triangle 3.6 cm is the largest side, it means 3.6 cm is the length of the hypotenuse. So, 2 cm and 3 cm and the base and height of the triangle.

Now, the area of the given triangle is:

Area=\dfrac{1}{2}\times 2\times 3

Area=3

Therefore, the area of the given triangle is 3 square cm.

4 0
2 years ago
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