Answer: 7n - 13
Step-by-step explanation:
Apply the distributive property.
4n + 3n + 3 ⋅ -5 + 2
Multiply 3 by -5
4n + 3n - 15 + 2
Add 4n and 3n
7n - 15 + 2
Add - 15 and 2
7n - 13
hope this helps :)
Answer:
Heads and heads (HH) , Heads and tails (HT)
Step-by-step explanation:
Answer:
D = 9.80
Step-by-step explanation:
To find AB, we'll use the distance formula:
Distance Formula = ![\sqrt{(x2-x1)^2+(y2-y1)^2}](https://tex.z-dn.net/?f=%5Csqrt%7B%28x2-x1%29%5E2%2B%28y2-y1%29%5E2%7D)
D = ![\sqrt{(10-1)^2+(3-7)^2}](https://tex.z-dn.net/?f=%5Csqrt%7B%2810-1%29%5E2%2B%283-7%29%5E2%7D)
D = ![\sqrt{(9)^2+(-4)^2}](https://tex.z-dn.net/?f=%5Csqrt%7B%289%29%5E2%2B%28-4%29%5E2%7D)
D = ![\sqrt{81+16}](https://tex.z-dn.net/?f=%5Csqrt%7B81%2B16%7D)
D = ![\sqrt{96}](https://tex.z-dn.net/?f=%5Csqrt%7B96%7D)
D = 9.80 (Upto 3 sfs)
Answer:
Step-by-step explanation:
hello :
x² - 6x = 7
x² - 6x+9-9___= 7
(x - 3 )²= __16_
x - 3= +/-_4__
x-3=4__and x-3 =_-4_
Answer: ![\triangle ABC\sim \triangle EDC](https://tex.z-dn.net/?f=%5Ctriangle%20ABC%5Csim%20%5Ctriangle%20EDC)
That is, triangles ABC and EDC are similar.
Step-by-step explanation:
Given : ![AB\parallel DE](https://tex.z-dn.net/?f=AB%5Cparallel%20DE)
AE and BD are the common transversal of the parallel lines AB and DE,
Then By the alternative interior angle theorem,
![\angle BAC\cong \angle DEC](https://tex.z-dn.net/?f=%5Cangle%20BAC%5Ccong%20%5Cangle%20DEC)
And, ![\angle ABC\cong \angle EDC](https://tex.z-dn.net/?f=%5Cangle%20ABC%5Ccong%20%5Cangle%20EDC)
Thus, By AA similarity postulate,
![\triangle ABC\sim \triangle EDC](https://tex.z-dn.net/?f=%5Ctriangle%20ABC%5Csim%20%5Ctriangle%20EDC)
⇒ triangles ABC and EDC are similar.