Answer:
She increased 80% the practise time
Step-by-step explanation:
The question is incomplete, the following is missing:
<em>by how much did she increase the time she practised each day?
</em>
From Monday to Wednesday she increased 90 - 50 = 40 minutes the practise time.
To compute the increment as a percentage use: increment/reference *100
In this case, that is: 40/50*100 = 80%, where 50 minutes is taken as a reference.
The slope-intercept form is y = mx + b.
Following that kind of form becomes
2y = -8x + 1
y =(-8x + 1)/2
y = -4x + 1/2
Hope this helps <span>✌️</span>☺️✌️
Answer: i believe bill saved $21.44
Step-by-step explanation: 68.99-57=11.99
37.80-25%=28.35
37.80-28.35=9.45
9.45+11.99=21.44
21 times because you need 7/4=1 gallon and 3/4 just for one and 7x3 =21 so need 21/4
Consider the top half of a sphere centered at the origin with radius
, which can be described by the equation
and consider a plane
with
. Call the region between the two surfaces
. The volume of
is given by the triple integral
Converting to polar coordinates will help make this computation easier. Set
Now, the volume can be computed with the integral
You should get