Answer:
Step-by-step explanation:
3x +4y= 8, where y =8x-20
3x + 4(8x - 20) =8
3x + 32x - 80 =8
3x +32x =8 +80
35x =88
x=88/35
x= 2.514
Word form: Six hundred thousand plus eighty thousand plus ten
Number form: 600,000+80,000+10
It would be a negative number
Answer:
Arc length of arc BC is 6.98 units or roughly 7 units.
Step-by-step explanation:
First recall that the formula for the circumference of a circle is C = 2πr, where r is the radius. Here the radius is 4 units. so the circumference of the (entire) circle is C = 2π(4 units) = 8π units.
The central angle for the arc shown in yellow is 100 degrees. The length of this arc is a fraction of C as found earlier:
100
------- * 8π units = 800π/360 units, or 6.98 units (about 7 units).
360
Arc length of arc BC is 6.98 units or roughly 7 units.
Answer:
-9
Step-by-step explanation:
0.1 x (-9 ) = - 0.9
- 0.9 x - 9= 8.1