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4 years ago

9. Geometry Which expression represents the perimeter of the figure?

Mathematics

1 answer:

Andreas93 [3]4 years ago

8 0

Perimeter is just the addition of the side lengths so add them together:
5c+6 + 2c+5 = 7c+11
Option D.

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Larry claims that (14 + 12) × (8 + 12) and (14 × 12) + (8 × 12) are equivalent because they have the same digits and the same op

FromTheMoon [43]

Answer:

$(14+12)\times (8+12) > (14\times 12)+(8\times 12)$

Step-by-step explanation:

First let us evaluate the value of both the expressions.

$(14+12)\times (8+12) = 26\times 20 = 520$

$(14\times 12)+(8\times 12) = 168 + 96 = 264$

a) Hence, Larry's claim that both the expressions are equivalent is wrong.

The evaluation of the expressions have been shown above. The second expression was obtained by swapping the addition and multiplication order and that created the difference.

b) Clearly,

520 > 264

Therefore,

$(14+12)\times (8+12) > (14\times 12)+(8\times 12)$

$(14+12)\times (8+12)$ is greater by the expression $(14\times 12)+(8\times 12)$ by a value of 520 - 264 = 256.

7 0

3 years ago

3) Sarah has $350 in her bank account on Monday. On Tuesday, she deposits (puts

asambeis [7]

Answer:

hello im sam and im going to help you answer your question.

Step-by-step explanation:

you to 350 and add 50 and you get 400

now you take 500 out and now u are in debt of -100$

4 0

3 years ago

5+(-13)=????<br>??????????

chubhunter [2.5K]

Answer:

-8

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Solve the system of equations by multiplying and adding. braceleftze −6x + 9y = −39 8x + y = 0 Write the solution as an ordered

Strike441 [17]

Answer:

$(\frac{1}{2},-4 )$

Step-by-step explanation:

the system of equations is:

$-6x+9y=-39\\8x+y=0$

First, we multiply the second equation by -9:

$-9(8x+9y=0)\\-72x-9y=0$

and now we add this to the first original equation:

$-6x+9y=-39\\-72x-9y=0\\-------\\-78x+0y=-39$

we have eliminated the y variable, so we can solve for x:

$-78x=-39\\x=-39/(-78)\\x=0.5=\frac{1}{2}$

with this value of x, we substitute it on the second of the original set of equations to find the value of y:

$8x+y=0\\8(0.5)+y=0\\4+y=0\\y=-4$

the answer as an ordered pair is:

$(\frac{1}{2},-4 )$

7 0

3 years ago

I need help with these 2 questions, please also try to explain how to get it.

faust18 [17]

The red lines signify congruency. Meaning, if one angle (say <EFD) is 75 and has one red line and <JAB also has one red line, it means it also equals 75.
Just like <GHF is 130 and has two lines, <JBC also has two red lines, so it also equals 130.

6 0

4 years ago