The given question is 8+13+18+...... which is in arithmetic progression . And for arithmetic series, we have to use the following formula for nth term .
Here a =8 , d=5
So we get
And the required expression for n=7 is
Answer:
57
Step-by-step explanation:
We need to create a ratio. so Aubree practices the piano for 1197 min: in 3 weeks. So for 1 week, we have to divide 1197 by 3, so 1197/=399. And so we know that 1 week is 7 days, just divide 399 by 7! 399/7=57. The rate that she practiced per day is 57 minutes. So one last final step just to check if this answer is correct is to divide 57 by 60, and that is 0.95. 0.95 out of 1.00 minutes per day is 95/100. Cross multiply with x/60, and you will get your answer, which is 57.
Answer:
B edge 2020
Step-by-step explanation:
Answer:
9.4 units
Step-by-step explanation:
Step one:
given data'
We are given the coordinates
x1=4.2
x2=-5.2
y1=-2
y2=-2
Required
The distance between the points
Step two:
The expression for the distance is
d=√((x_2-x_1)²+(y_2-y_1)²)
substitute
d=√((-5.2-4.2)²+(-2+2)²)
d=√((-9.4)²
d= √88.36
d= 9.4 units
