Answer:
a. is 5
c. is 3
e. is 6
b. is 1
d. is 4
f. is 2
Step-by-step explanation:
The sequence is arithmetic since the common difference that is equal
d=11-15=7-11=-4
a(n) = a1 +(n-1)d
a1=15
=
a(n) = 15+(n-1)-4
Answer: D. 40
Step-by-step explanation:
Given: Number of students liked vanilla or chocolate ice cream =
Number of students liked chocolate =
Number of students liked vanilla=
Now, Number of students liked vanilla and chocolate ice cream is given by :-

Number of students liked vanilla and chocolate ice cream= 40
Answer:
D. When its angles are right angles.
Step-by-step explanation:
A rhombus can be a rectangle when its angles are right angles.
Answer:
Step-by-step explanation:
Given
Initial Temperature = -10
Increment = 5
Required
Solving (a): Write an Equation
The equation is to add the initial temperature and the increment
i.e
Equation = Initial Temperature + Increment
Solving (b): Solve the equation
Substitute values for initial temperature and the increment
Result = -10 + 5
Result = -5
Solving (c):
It's a negative answer because the increment in temperature is not greater than the initial temperature