1. -24 • 5 = ?
A. -100~~?
B. -120
C. 120
D. 90
2. What is the product of -8 and -7?
A. 56
B. -56~~?
C. 63
D. -63
3. Which of the following has a product of -40?
A. (2)(20)
B. (-4)(-10)~~?
C. (8)(-5)
D. (-7)(60)
4. Which integer represents the total change in altitude of an airplane descending 5 feet every second for 15 seconds?
A. 65~~?
B. 75
C. -75
D. -65
5. Find the product.
10 • -5 • -4 • 3=?
A. -600
B. -500
C. 500~~?
D. 600
Plz halp
- times - is plus
so,
#1 is correct
#2,3 are wrong
#4 is wrong (descending means -5 ft/sec)
#5 is ok. Odd how you got that right, but missed #2,3...
question #1 is -120
question #2 is 56
question #3 is (8)(–5)
question #4 is -75
question #5 is 600
trust i just completed this exact test and there are all right
I stand corrected then! Thank you for providing the correct answers.
1. To solve this multiplication problem, you need to multiply -24 by 5. The result will depend on the rules of multiplying positive and negative numbers. When you multiply two numbers with different signs (a positive number and a negative number), the product will be negative. So, the correct answer is B. -120.
2. To find the product of -8 and -7, you need to multiply these two numbers. When you multiply two negative numbers, the product will be positive. Therefore, the correct answer is A. 56.
3. The product of (-4)(-10) is the only option that gives a negative result. When you multiply two negative numbers, the product will be positive. So, the correct answer is B. (-4)(-10).
4. The altitude of the airplane is descending, which means it is going down. Therefore, the change in altitude will be negative. The formula to find the total change in altitude is: change in altitude = rate of descent × time. In this case, the rate of descent is -5 feet per second and the time is 15 seconds. So, the total change in altitude will be (-5) × 15 = -75. The correct answer is C. -75.
5. To find the product of the given numbers, you need to multiply them together. Remember that when you have an even number of negative signs, the result will be positive, and when you have an odd number of negative signs, the result will be negative. In this case, there are three negative signs, so the product will be negative. Therefore, the correct answer is A. -600.