The length of fourth side is: 8a-2
Step-by-step explanation:
Given
Perimeter = P = 39a-7
![Side1 = s_1 =9a\\Side2=s_2=5a+1\\Side3=s_3=17a-6\\Side4=?](https://tex.z-dn.net/?f=Side1%20%3D%20s_1%20%3D9a%5C%5CSide2%3Ds_2%3D5a%2B1%5C%5CSide3%3Ds_3%3D17a-6%5C%5CSide4%3D%3F)
The perimeter is given by:
![P = s_1+s_2+s_3+s_4\\39a-7 =9a+5a+1+17a-6+s_4\\39a-7=31a-5+s_4\\s_4=39a-31a-7+5\\s_4=8a-2](https://tex.z-dn.net/?f=P%20%3D%20s_1%2Bs_2%2Bs_3%2Bs_4%5C%5C39a-7%20%3D9a%2B5a%2B1%2B17a-6%2Bs_4%5C%5C39a-7%3D31a-5%2Bs_4%5C%5Cs_4%3D39a-31a-7%2B5%5C%5Cs_4%3D8a-2)
The length of fourth side is: 8a-2
Keywords: Perimeter, trapezoid
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Answer: 25%
Step-by-step explanation:
Original price of chocolate = $48
Price taken off for Tom = $12
i.e $12 out of $48 means Tom bought the chocolate $32
Hence, percent discount = (Price taken off/Original price) x 100%
= (12/48) x 100%
= 0.25 x 100%
= 25%
Thus, the percentage discount on the chocolate is 25%
Answer:
true by subtract ing 8 we solve it.
Answer:
Yes, only one trial had a result of 19 or larger.
Step-by-step explanation:
The claim reported is that only about half of high school seniors study for upcoming math test. However, at Garfield a sizeable number of the 30 surveyed observation gave a symmetrical distribution about the study pattern of their high school seniors with only one trial a frequency of yes greater than or equal to 19