I need help with a few problems. Please help.
Perform the indicated operation.
-13 - (-22)
_______________
-11 - (-11)
A)9/22
B) 450
C)-13/-11
D)Undefined
Multiply (4)(–5)(10).
Find the reciprocal of (-1/5) (15)
Find the receiprocal of (-1/3)(9/2)(6)
Perform the indicated operation:
15-14
____________
(4)(4)-16
Please Help.
-13-(-22)= -13+22 = 9
-11-(-11)=0
9/0
Thats undefined.
78-63
Of course! I'll be glad to help you with these problems. Let's go through each one step by step.
1) Perform the indicated operation:
-13 - (-22)
_______________
-11 - (-11)
To solve this, let's simplify the numerator and denominator separately:
Numerator: -13 - (-22)
To subtract a negative number, we can change it to addition: -13 + 22 = 9
Denominator: -11 - (-11)
Similarly, we can change this to addition: -11 + 11 = 0
Now, we have the fraction:
9/0
When the denominator of a fraction is 0, it becomes undefined. So, the answer is D) Undefined.
2) Multiply (4)(-5)(10)
To multiply these numbers, we simply multiply them together:
(4)(-5)(10) = -200
So, the answer is -200.
3) Find the reciprocal of (-1/5)(15)
To find the reciprocal of a fraction, we simply swap the numerator and the denominator.
Reciprocal of (-1/5)(15) = (15)/(-1/5)
Now, to divide by a fraction, we can multiply by its reciprocal. So, we multiply the numerator by the reciprocal of the denominator:
(15)/(1/5) = 15 * (5/1) = 15 * 5 = 75
So, the reciprocal of (-1/5)(15) is 75.
4) Find the reciprocal of (-1/3)(9/2)(6)
Similar to the previous problem, we find the reciprocal by swapping the numerator and denominator:
Reciprocal of (-1/3)(9/2)(6) = (6)/(-1/3)(9/2)
Now, let's multiply the fractions together:
(6)/(1/3)(9/2) = 6 * (3/1) * (2/9) = 6 * 3 * 2/1 * 1 * 9 = 36/3 = 12
So, the reciprocal of (-1/3)(9/2)(6) is 12.
5) Perform the indicated operation:
15 - 14
___________
(4)(4) - 16
First, let's simplify the numerator and denominator:
Numerator: 15 - 14 = 1
Denominator: (4)(4) - 16 = 16 - 16 = 0
Again, when the denominator is 0, the fraction becomes undefined. So, the answer is D) Undefined.
I hope this helps!