Answer:
5.36
Step-by-step explanation:
Given that:
<BAD = <CAE, therefore, BD = EC
Let's take x to be the length of BD = EC
BD + DE + EC = BC
BC = 20,
BD = EC = x
DE ≈ 9.28
Thus,
x + 9.28 + x = 20
x + x + 9.28 = 20
2x + 9.28 = 20
Subtract 9.28 from both sides
2x + 9.28 - 9.28 = 20 - 9.28
2x = 10.72
Divided both sides by 2 to solve for x
![\frac{2x}{2} = \frac{10.72}{2}](https://tex.z-dn.net/?f=%20%5Cfrac%7B2x%7D%7B2%7D%20%3D%20%5Cfrac%7B10.72%7D%7B2%7D%20)
![x = \frac{10.72}{2}](https://tex.z-dn.net/?f=%20x%20%3D%20%5Cfrac%7B10.72%7D%7B2%7D%20)
![x = 5.36](https://tex.z-dn.net/?f=%20x%20%3D%205.36%20)
BD ≈ 5.36
Answer: (3, 1) :)
Explanation:
-6x + 8y = -10
-4x + y = -11
-32x + 8y = -88
26x = 78
x = 3
-18 + 8y = -10
8y = 8
y = 1
(Also, can I have brainliest please?)
its y-axis for the first answer and the other one its, y=-x
Answer:
Step-by-step explanation:
120 +-20 =(100 ; 140) -> X±k*σ= 100 =>k=1
According to Chebyshev, approximately 66.67% of the data lie within one standard deviation of the mean
->66.67%*560 = 373 products in (100;140)