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maciemarklin3522
11.06.2021 •
Mathematics
Find the measure of each acute angle. The measure of the top-left angle in the triangle is__º and the measure of the bottom-right angle is__º.
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Ответ:
the top angle is 48
the bottom right angle is 42
Step-by-step explanation:
The sum of the angles of a triangle is 180
90 + 8x+7x = 180
Combine like terms
90 +15x = 180
Subtract 90 from each side
15x = 180-90
15x = 90
Divide by 15
15x/15 =90/15
x = 6
8x = 8*6 = 48 so the top angle is 48
7x = 7*6 = 42 so the bottom angle is 42
Ответ:
Solution given:
8x°+7x°+90°=180°[sum of interior angle of a triangle is 180°]
15x=180°-90°
x=90/15
x=6°
8x=8*6=48°
7x=7*6=42°
Ответ:
Explicit formula for
1)![a_n=17-3(n-1)](/tpl/images/0494/3225/7a468.png)
2)![a_n=(\frac{1}{2} )^{n-1}\cdot 20](/tpl/images/0494/3225/8f10a.png)
Step-by-step explanation:
W have to find the first few terms of the given sequence and then find an explicit equation
Explicit formula = f(n) + d(n-1) , where,
f(n) is first term,
d is common difference,
n-1 is one term less than the term number.
1)
Given :![a_1=17\\\\a_{n+1}=a_n-3](/tpl/images/0494/3225/dc5c2.png)
Thus, we obtained an explicit formula,
2)
Given :![a_1=20\\\\a_{n+1}=\frac{1}{2} \cdot a_n](/tpl/images/0494/3225/15782.png)
Thus, we obtained an explicit formula,
Thus, we obtained an explicit formula,