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3 years ago

Please help me 80 points for who answers :)

Mathematics

2 answers:

irga5000 [103]3 years ago

8 0

Answer:

the sum of two negative integers is a negative integer. (T)

the sum of two positive integers is a positive integer. (T)

the additive inverse of any integer and its opposite is equal tu zero. (F)

to find the sum of a positive and a negative integer, take the absolute value of each integer and them subtract these vakues. (T)

Lana71 [14]3 years ago

6 0

Answer:

the sum of two negative integers is a negative integer. true

the sum of two positive integers is a positive integer. true

to find the sum of a positive and a negative integer take the absolute value of each integer and then subtract these values.

true

the additive inverse of any integer and its opposite is equal to 0. false

The sum of any integer and its opposite is equal to zero.

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Help meeeeeeee please :(.

vodomira [7]

Answer:

$x^{3} -5x^{2} -6x +8 \frac{-2}{x + 3}$

Step-by-step explanation:

$x^{3} -5x^{2} -6x +8 \frac{-2}{x + 3}$

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4 years ago

Students are making ornaments and each takes 1 2 of a piece of Bristol board. They go to the cupboard and find 1 1 2 pieces of B

s2008m [1.1K]

Answer: 3

Step-by-step explanation:

Feom the question, we are informed that students are making ornaments and each takes 1/2 of a piece of Bristol board and that they go to the cupboard and find 1 1/2 pieces of Bristol board.

The number of ornaments that they can make will be calculated by dividing 1 1/2 by 1/2. This will be:

= 1 1/2 ÷ 1/2

= 3/2 ÷ 1/2

= 3/2 × 2/1

= 3

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8 0

3 years ago

I JUST NEED AN ANSWER PLEASE

irga5000 [103]

Answer: 1/3

Step-by-step explanation:

lol hope i helped:)

3 0

3 years ago

Find the unknown angle measure by solving for the given variable

tiny-mole [99]

A straight line is 180°. So you can do:

(15x - 4) + (5x - 8) = 180 Simplify

20x - 12 = 180

20x = 192 Find the value of x

x = 9.6

m∠ABD = 15x - 4 Plug in x = 9.6

m∠ABD = 15(9.6) - 4 = 144 - 4 = 140°

m∠DBC = 5x - 8 Plug in 9.6

m∠DBC = 5(9.6) - 8 = 48 - 8 = 40°

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3 years ago

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