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photoshop1234 [79]
3 years ago
14

Why is the simplified value of the expression below? -8*(-3)

Mathematics
1 answer:
kirill115 [55]3 years ago
8 0
When you multiply two numbers which have the same sign the answer is positive. Therefore multiply eight and three to get 24 and the answer is positive; therefor the answers 24.
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Explain the rules for multiplication and division to convert units. How do you know when to multiply and when to divide to conve
Dima020 [189]
Well, units divide and multiply just like numbers. That's why Area is in units of  distance squared (cm × cm = cm²) and volume is cubic distance (m × m × m = m³).

Likewise other mathematical operations can be performed on them, including division where they can cancel out of the equation.

For instance, a rate, speed, slope or conversion factor is usually one unit divided by another unit. Like so...

speed = 5 meters per second
= \frac{5m}{1sec}

If you are given a distance traveled, let's say 100 meters and asked to solve for time it takes to get there. You would divide by the speed so that meters cancel leaving only time.

** Of course to divide by a fraction is to flip and multiply so really you're just multiplying by it, making sure the same units are diagonal and cancel out like so:

100 m *  \frac{1sec}{5m} = 20 sec


Hope this helps!

4 0
3 years ago
The number of points that lie on a period at the end of sentence are
Airida [17]
Infinite is your answer :)
7 0
3 years ago
The variable x represents a value in the set (4,5,6,7) which value of x makes 2(x-4) + 3=5 a true statement ?
brilliants [131]

Answer:

5

Step-by-step explanation:

2(1)+3=5

the answer is 5

5 0
2 years ago
What is the correct answer for Shayla's problem? Explain where she went wrong.
Tasya [4]
I believe that the slope is -1/2
6 0
3 years ago
Starting at a fixed time, each car entering an intersection is observed to see whether it turns left (L), right (R), or goes str
lisov135 [29]

Answer:

x=3, 5, 4, 4, 3

Step-by-step explanation:

Given:

Starting at a fixed time, each car entering an intersection is observed to see whether it turns left (L), right (R), or goes straight ahead (A) such that the experiment terminates as soon as a car is observed to turn left.

X = the number of cars observed

For outcome RRL,

experiment terminates after the third car, so, X = 3

For outcome AARRL,

experiment terminates after the fifth car, so, X = 5

For outcome AARL,

experiment terminates after the fourth car, so, X = 4

For outcome RRAL,

experiment terminates after the fourth car, so, X = 4

For outcome ARL,

experiment terminates after the third car, so, X = 3

6 0
3 years ago
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