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2 years ago

1)When adding two negative numbers, _________ the absolute value of the numbers and keep the negative sign.

Mathematics

2 answers:

rosijanka [135]2 years ago

8 0

1) add.

for example -1 + -2 = - (||-1| + |-2||), which is -(1+2) or -3

2) subtract

for example 4 + -7 = -(||-7| + |4||), which is - |7 - 4| or -3

3) change
for example 3 - (- 2) = 3 + 2

tresset_1 [31]2 years ago

7 0

Answer: first add then stubract then you chanege it

Step-by-step explanation:

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2 years ago

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2 years ago

Can someone help me with solving volume equations?

Helen [10]

Answer:

For 2, 30 cubic m., For 3, 90 cubic cm., For 4, 1000 cubic yards, for 5, 27 cubic mm., For 6, 120 cubic in.

Step-by-step explanation:

You can simply multiply all 3 sides to get the cubic volume B x h is the same as l x w x h

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2 years ago

A central angle θ in a circle of radius 5 m is subtended by an arc of length 6 m.

Marina86 [1]

Answer:

θ=1.2 rad=68.7549°

Step-by-step explanation:

Given

Circle of radius 5
Arc of length 6 subtends angle of θ

$\text{Arc Length}=\text{Radius}\times \text{Angle Subtented(in rad)}$

⇒

$6= 5\times \text{O}\\$

θ $=\frac{6}{5} =1.2rad$

Therefore θ=1.2 rad

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Therefore 1.2 rad= 68.7549°

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2 years ago

Multiple polynomial the (x^3+3x^2+1)(3x^2+6x-2)

Mrrafil [7]

The product of given polynomials is: $3x^5+15x^4-16x^3-3x^2+6x-2$

Step-by-step explanation:

Given polynomials are:

$(x^3+3x^2+1)\\and\\(3x^2+6x-2)$

In order to multiply both polynomials, we will use the distributive property

So,

$= (x^3+3x^2+1)(3x^2+6x-2)\\=x^3(3x^2+6x-2)+3x^2(3x^2+6x-2)+1(3x^2+6x-2)\\=3x^5+6x^4-2x^3+9x^4+18x^3-6x^2+3x^2+6x-2$

Combining like terms

$=3x^5+6x^4+9x^4-2x^3+18x^3+3x^2-6x^2+6x-2\\=3x^5+15x^4-16x^3-3x^2+6x-2$

Hence,

The product of given polynomials is: $3x^5+15x^4-16x^3-3x^2+6x-2$

Keywords: Polynomials, variables

Learn more about polynomials at:

#LearnwithBrainly

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3 years ago