Answer:
A) 7x^2-7x+15
Step-by-step explanation:
f(x) = 4x2 - 5x + 7,
g(x) = 3x2 - 2x + 8
f(x) +g(x) =
4x^2 - 5x + 7 + 3x^2 - 2x + 8=
7x^2-7x+15
Answer:
The volume of the cone is 314yd³
Step-by-step explanation:
radius = half of diameter
d = 10yd
r = 10yd / 2 = 5yd
First of all to solve this problem we have to know the formula to calculate the volume of a cone
v = volume
r = radius = 5yd
h = height = 12yd
π = 3.14
v = 1/3 * π * r² * h
we replace with the known values
v = 1/3 * 3.14 * (5yd)² * 12yd
v = 1/3 * 3.14 * 25yd² * 12yd
v = 314yd³
The volume of the cone is 314yd³
Answer:
Kirby Middle School
The percentage of students who used Snap the most is given as:
= 44%
Step-by-step explanation:
a) Data and Calculations:
App Number of Students
Face 8
Snap 22
Insta 20
Total 50
The percentage of Snap users = Number of Snap users/Total users * 100
= 22/50 * 100 = 44%
b) This represents the proportion of all the students surveyed about the use of social media app. Since 22 students used Snap out of 50, it means that 44% of the survey sample used Snap. This is against 16% (8/50) who used Face and 40% (20/50) who used Insta.
The number of applicants that were not accepted are calculated to be 1260.
The number of applicants that were not accepted can be determined as follows;
Since 2 out of every 9 applicants are accepted; therefore the total number of applicants out of which 360 applicants were accepted can be calculated as follows;
360 × 9 / 2 = 3240 / 2 = 1620
Therefore the total number of applicants is calculated to be 1620, out of these 1620 applicants, 360 were accepted therefore the number of applicants that were not accepted can be determined by subtraction.
The number of applicants that were not accepted can be determined by subtracting the accepted applicants from the total number of applicants as follows;
Applicants not accepted = 1620 - 360
Applicants not accepted = 1260
Therefore 1260 applicants were not accepted by the program.
To learn more about subtraction; click here:
brainly.com/question/13378503
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