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# negative 4 plus 7

negative 4 plus 7

## Research, Knowledge and Information :

### What is negative 7 plus negative 4 - Answers.com

A negative plus a negative is a negative number. It is a larger negative number, that is, it is a smaller number - IOW, it is farther to the left on the number line.

### Adding Positive and Negative Numbers | Wyzant Resources

Adding Positive and Negative Numbers. Once you understand the basics of positive and negative numbers, you can start to add them together. Sometimes this seems ...

### What is negative 4 plus 7 - Answers.com

What is negative 4 plus 6?-6+4=-2 If you find it hard to work negatives out, just switch the numbers around, 4-6=-2 2 people found this useful Edit. Share to: ...

### Subtracting Positive and Negative Integers

Subtracting Negative and Positive Integers. To subtract integers, ... If both signs are negative, the answer will be negative. Example: -8 - (+4) = -8 - 4 = -12;

### Negative 3 minus Negative 7 = POSITIVE FOUR?

Negative 3 minus Negative 7 = POSITIVE FOUR? ... If you want to make a number more negative, you add a negative number to it. by Anonymous: reply 1: 08/31/2015:

### Adding and Subtracting Positive and Negative Numbers

Positive and Negative Numbers ... "Positive 2 plus Positive 3 equals Positive 5" ... Now let's see what adding and subtracting negative numbers looks like:

### MathSteps: Grade 6: Negative Numbers: What Is It?

Operations with Negative Numbers. Commonly, plus and minus signs are used to indicate addition and subtraction, respectively. Those signs can also be used to indicate ...

### Subtracting Positive and Negative Numbers - Wyzant

Subtracting Positive and Negative Numbers. Subtracting positive and negative numbers can also be tricky because there are several rules to remember and follow.

### Plus and minus signs - Wikipedia

The plus and minus signs (+ and −) are mathematical symbols used to represent the notions of positive and negative as well as the operations of addition and subtraction

## Suggested Questions And Answer :

### negative eight minus negative eight equals

-8 - -8= -16 the answer is negative 16 because a negative plus a negative is a positive. so u add. so 8 plus 8 is 16 and then its a negative so negative 16.

### -8/5 + 2/-5

-8/5+2/-5 is the same as -8/5 - 2/5, because the minus sign applies to the whole fraction not to just the top or just the bottom part. The fractions have the same denominator so we can write (-8-2)/5, that is we can add together the two negatives. How do you add two negative numbers? Think of the sign as indicating direction. Plus means go to the right or forwards and minus means go to the left or backwards. In this case take eight steps backwards then go back another two steps. How many steps backwards have you gone? 10, of course, which is -10. -10/5, if there was no minus, would be 2, so you do the division first then call the result negative, so the answer is -2. The rule is: if you multiply or divide two numbers with different signs (no sign at all means plus) the result is always negative; if the signs are the same, two positives or two negatives, the result is always positive.

### five times a number increased by 2 is equal to twice the number decreased by 4.

If the number is x, 5x+2=2x-4, so putting x's on the left and numbers on the right we get 3x=-6, so x is -2. The equals sign changes positive to negative and negative to positive when transfers are made across it. Put x=-2 and check out the question: 5 times the number is -10 plus 2 is -8, and twice the number is -4 less 4 is also -8. Treat negatives as direction backwards and positives as direction forward: negative is steps back and positive is steps forward, so the number -2 is two steps back. Multiply by 5 means 10 steps back; plus 2 is 2 steps forward, making 8 steps back. Twice 2 steps back is 4 steps back; less 4 is 4 steps further back making 8 steps back.

### what is the product of (-3) (-6)

Simple Algebra skills... (Minus X Minus) = positive number. eg. -2x-10 = 20 (Minus X Plus) = negative number. eg. -2x10 = -20 (Plus X Minus) = negative number. (Plus X Plus) = positive number. eg. 2x10 = 20 To answer your question. (-3)(-6) is 18. Brackets or parenthesises in maths, placed next to each other means Times

### Whats 2-(-4)

When you have "minus a negative" back to back... that becomes "plus a positive" 2 - (-4) = 2 + 4 {minus a negative becomes plus a positive} = 6 {added} www.algebrahouse.com

Before, below, loss are examples of negatives, while after, above, gain or profit are examples of positives. All all the things mentioned in the question must happen before the launch, so we add the times together: 2hr 15m plus 20m plus 40m=2hr 15m plus 1hr (40+20 minutes=1hr)=3hr 15m. These must take place BEFORE launch, so this time is negative: -3hr 15m, answer 1.

### what is -t+5=t-19

People have a hang-up over negatives, but really there's no need to panic. After all if the temperature goes down to -2 it just means 2 degrees below zero. You can see this on a thermometer and everyone understands what it means, no problem. Just because negatives show up in mathematical and algebraic expressions is no big deal either. Back to your problem. To solve the equation and find t we need to gather together the unknowns (in this case the variable t) and the knowns, which are just numbers. We need to have the knowns on one side of the equals and the unknowns on the other side for this type of equation. It doesn't matter which side is used for what, although most people feel happier with the unknown(s) on the left and plain numbers on the right. We don't want loads of negatives so what we'll do is take the t's over to the right. When you cross from side of equals to the other, plus changes to minus and minus to plus. Divide changes to multiply and multiply changes to divide. Bring the -t from the left to right and it becomes +t or just t, added to the t already there makes 2t. Now bring the -19 from right to left where it becomes +19, added to the 5 already there makes 24. So we have 24=2t or put another way 2t=24. Take 2 from the left where it's multiplying over to the right where it divides into 24, making 12. So t=12. Bingo!

### integral from 0 to infinity of (cos x * cos(x^2)) dx

The behaviour of this function f(x)=cos(x)cos(x^2) is interesting. The integral is the area between the curve and the x axis. If the functions cos(x) and -cos(x) are plotted on the same graph, the latter form an envelope for f(x). Between x=(pi)/2 and 3(pi)/2, the curve has 4 maxima and 3 minima; between x=3(pi)/2 and 5(pi)/2 there are 7 maxima and 6 minima; between x=(2n-1)(pi)/2 and (2n+1)(pi)/2 there are 3n+1 maxima and 3n minima (integer n>0), a total of 6n+1. (These are based purely on observation, and need to be supported by sound mathematical deduction.) As n becomes large the envelope appears to fill as the extrema become closer together. As x tends to infinity n also tends to infinity. The envelope apparently has as much area above (positive) as below (negative) the x axis so the total area will be zero as the positive and negative areas cancel out. The question is: do the areas cancel out exactly? As x gets larger, the curve starts to develop irregularities and patterns, but it stays within the envelope, and positive irregularities appear to be balanced by negative irregularities, so the overall symmetry appears to be preserved. f(x)=0 when cos(x)=0 or cos(x^2)=0, which means that x=(2n-1)(pi)/2 or sqrt((2n-1)(pi)/2), where n>0. Between 3(pi)/2 and 5(pi)/2, for example, we have sqrt(3(pi)/2), sqrt(5(pi)/2), ..., sqrt(13(pi)/2), because sqrt(13(pi)/2)<3(pi)/20, and this lies between (2n-1) and (2n+1); so n is defined by 2n-1<(2m+1)^2(pi)/2<2n+1.  For m-1 we have 2(n-z)-1<(2m-1)^2(pi)/2<2(n-z)+1, where z is related to the number of zeroes in the current "batch". For example, take m=3: 2n-1<49(pi)/2<2n+1; 49(pi)/2=76.97 approx., so 2n-1=75, and n=38. Also 2(n-z)-1<25(pi)/2<2(n-z)+1 so, because 25(pi)/2=39.27 approx., 2(n-z)+1=41, n-z=20, and z=18. When m=2, 2n-1=39, n=20; 2(20-z)-1<9(pi)/2<2(20-z)+1; 2(20-z)-1=13, 20-z=7, z=13. The actual number of zeroes, Z, including the end points is 2 more than this: Z=z+2. Now we have an exact way to calculate the number of zeroes in each batch. So Z and n are both related to m. The number of extrema, E=Z-1=z+1. In fact, E=int(2(pi)(m-1)+1), where int(a) means the integer part of a, so as m increases, there are proportionately more extrema over the range (2m-1)(pi)/2 to (2m+1)(pi)/2. The figure of 6n+1 deduced earlier by observation approximates to the mathematical findings, because 2(pi) is approximately equal to 6. But we still need to show, or disprove, that the areas above and below the x axis are equal and therefore cancel out. Unfortunately, if we consider the area under the first maximum (between x=(pi)/2 and sqrt(3(pi)/2)), and the area above the first minimum (between x=sqrt(3(pi)/2) and sqrt(5(pi)/2)), they are not the same, so do not cancel out. More...

### can you get a negative answer when adding a positive number and several negative numbers?

Yes, you can. And no, you can't. It all depends on how many negatives there are in the equation. Like multiplying a positive with a negative will equal a negative. Or multiplying a positive times a negative times a negative times a negative will equal a negative, because a plus times a negative equals negative. Multiply the negative with a negative you get a positive. Multiply that positive with the last negative and you get a negative.