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2 years ago

When subtracting with negative numbers, change the problem to an problem and

Mathematics

1 answer:

pychu [463]2 years ago

4 0

Answer:

Subtracting a number is the same as adding the opposite of the number

Step-by-step explanation:

Subtracting a negative number from a negative number – a minus sign followed by a negative sign, turns the two signs into a plus sign. So, instead of subtracting a negative, you are adding a positive. Basically, - (-4) becomes +4, and then you add the numbers. For example, say we have the problem -2 - –4.

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3.41 rounded to the nearest tenth please help

horrorfan [7]

Your answer would be 3.4

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2 years ago

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What is the solution to these equations y= 2x +1 and x +2y= 27

Llana [10]

Answer:

The first one is -1/2

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2 years ago

What is |-8| ? -16

olga nikolaevna [1]

Answer:

Those little "sticks" are called absolute value.

For example, the absolute value of 2 is 2, and the absolute value of −2 is also 2. The absolute value of a number may be thought of as its distance from zero along real number line.

Thus, it doesn't matter if the number is positive or negative. As it only counts its distance from 0, on the number line.

I hope it helps.

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2 years ago

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Y varies directly as x squared. y is 18 when x is 3. Find y if x is 4. Any help? thanks

stealth61 [152]

Answer:

Step-by-step explanation:

y ∝ x^2

Introducing the proportionality constant, we have

y = kx^2

Given : y= 18 when x = 3

substitute the given values in order to get the constant

i.e 18 = k x 3^2

18 = 9k

k = 2

therefore the formula connecting x and y

⇒ y = 2x^2

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2 years ago

Factor the following polynomial by grouping.

Olenka [21]

Since all four terms don't have a common factor we will group them in pairs with common factors.
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6uv + 4u - 3v^3 - 2v^2
Take out 2u from the first two terms and -v^2 from the last two terms. The goal is to have a common factor once we take out the GCF's.
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Now we have two terms:
[2u(3v+2)] + [-v^2(3v+2)]
These two terms have a GCF of (3v + 2). Take that out:
(3v + 2)(2u - v^2)

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3 years ago

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