Answer: She needs 86 more pens
Step-by-step explanation: She starts off with 39 pens and she needs to get to 125 so you would subtract 39 from 125 and you would find the answer to how many more she needs.
Ok, use the sum of triangle theorm all angles of the triangle has a sum of 180 degrees. B is 90 degrees because it labeled it self ABC the A angle seems by the degree to be at the top of the triangle and there needs to be a 90 degree angle in a right triangle. Now if you add 90 + 28 you get 118 degrees subtract that from the sum of all the angles ( 180 degrees), and get 62 degrees as angle C. Angle A is 28 degrees, angle B is 90 degrees, angle C is 62 degrees.
Answer:
Step-by-step explanation:r=12cm,h=18cm,v=?
Vol. Of a cylinder=Πr²h
V= Π×12²×18
V= Π×144×18
V=2592Πcm³
Answer:
it would be 3/7
Step-by-step explanation:
3+4=7 3 cousins out of the seven are girls
Answer:
.
Step-by-step explanation:
Given homogeneous equation
Substitute y=ux , 
Now,
Integrating both side we get
lnu=-2lnx+lnC
Where lnC= integration constant
Cancel ln on both side
Substitute
Then we get
xy=C
.
Answer:.
