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3 years ago

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Mathematics

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ollegr [7]3 years ago

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Determine the area of squre ABCD with AB=3cm

Travka [436]

Answer:

Area: $9 cm^{2}$

Step-by-step explanation:

Since all sides of a square have equal lengths, the area of the square is $a^{2}$ (a = length of a side).

Since the length of the side of the square is given (is 3cm), the area of the square is $(3cm)^{2}$ = $9cm^{2}$

8 0

3 years ago

Read 2 more answers

2 (y+6) + 6 (y+6) Expand and simplify

san4es73 [151]

Hi there! The answer is 8y + 48.

$2(y + 6) + 6(y + 6)$
First work out the parenthesis.

$2y + 12 + 6y + 36$
Rewrite the expression in order to collect the terms.

$2y + 6y + 12 + 36$
Next up, collect the terms.

$8y + 48$
Now we've found our answer.

5 0

3 years ago

PLEASE HELP ME ASAP ITS A EXAM

bearhunter [10]

Answer:

6x = 48, 180/z = 90, and 10y + 8 + 138 = 180

Step-by-step explanation:

48 and six x are vertical angles they form a kind of x so they are complementary or equal

180/z and the 90 degree angle are supplementary meaning they add to 180 so 90 minus 180 = 90

the same thing is true for 10y + 8 its supplementay with 138 so 10y + 8 + 138 = 180

7 0

3 years ago

2/3/ -1 1/3 I am confused

juin [17]

Answer: -3

Step-by-step explanation:

2/3-11/3

= 2-11/3

=-9/3

=-3

4 0

3 years ago

Rebecca gets a part time job in order to pay for her cheerleading uniform. her employer tells her that she will be earning $7.25

qwelly [4]

Answer:

$1972

Step-by-step explanation:

We are given that Rebecca will earn $7.25 per hour for her job and she is promised to have 34 hour workdays per week.

We are to find the minimum amount of money she will gross in eight weeks.

Number of hours of work in 8 weeks = $34 \times 8$ = 272 hours

Minimum amount of money she will earn in 8 weeks = $272 \times 7.25$ = $1972

4 0

3 years ago