Simplify: |3 – 8| - (12 divided by 3 + 1) to the power of 2

Mathematics

2 answers:

Harlamova29_29 [7]3 years ago

4 0

Answer:

-4

Step-by-step explanation:

Assuming that the following equation is correct, begin by solving the operations within parentheses and absolute value expressions.

|3 - 8| - $(\frac{12}{3+1} )^2$

|-5| - $(\frac{12}{4} )^2$

The absolute value of -5 is 5; -5 is five units away from 0. 12/4 is equal to 3.

5 - $3^2$

5 - 9 = -4

The simplified expression is equal to -4.

Goshia [24]3 years ago

4 0

2.8 I think I’m not sure

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Which of the sets of ordered pairs represents a function?

Marrrta [24]

Answer:

Set A

Step-by-step explanation:

By definition "a function may NOT have two y-values assigned to the same x-value, [but] it may have two x-values assigned to the same y-value."(https://mathbitsnotebook.com/Algebra1/Functions/FNFuncBasics.html)

Set A has follows this set of rules while Set B does not. Also if we graph it, Set B does not pass the vertical line test. (Learn about the vertical line test in the link below).

http://www.coolmath.com/algebra/15-functions/03-vertical-line-test-01

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3 years ago

Aunty Joan packs a packet of sweets to Alice and Olivia. Alice and Olivia share sweets in the ratio 7:3. Alice gives 3 sweets to

aivan3 [116]

Initially, Alice had 28 sweets and Olivia 12 sweets.

Step-by-step explanation:

First assume that Aunty Joan has x number sweets.

Alice and Olivia shared the x sweets in a ration of 7:3, this means

Alice had 7/10 x sweets and Olivia had 3/10 sweets.

Alice gives 3 sweets to Olivia, Alice will remain with ;

$\frac{7}{10} x-3$