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3 years ago

Could 8.8cm, 8.0cm, and 8.8cm be the side lengths of a triangle? Yes or no?

Mathematics

1 answer:

Ne4ueva [31]3 years ago

4 0

Answer:

yes it could be

Step-by-step explanation:

the sum of any two sides needs to be greater than the value of the third, 8.8 +8.8 is greater than 8.0, 8.8 + 8.0 is greater than 8.8

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What is the value of 3x^2 + 5x + 25 when x = 3

pshichka [43]

Answer:

Step-by-step explanation:

3x^2 + 5x + 25 when x = 3

= 3(3)^2 + 5(3) + 25

= 3(9) + 15 + 25

= 27 +15 + 25

= 67

6 0

3 years ago

CAN YOU PLS HELP MEEEE

laiz [17]

Answer:

10x - 2y

Step-by-step explanation:

simplify the expression.

8x–2y + x + x

combine numbers that have the same variables

8x + x + x

*those x have 1 coefficient each.

it will be 8x+1x+1x = 10x then –2y

10x–2y.

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8 0

3 years ago

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KonstantinChe [14]

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3 years ago

Verify the equation is an identity cos (180 - x) = - cos x Show Work plzzz!!!

astra-53 [7]

check your Unit Circle for the values of at 180°

$cos(\alpha - \beta)= cos(\alpha)cos(\beta) + sin(\alpha)sin(\beta) \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ cos(180-x)=-cos(x) \\\\[-0.35em] ~\dotfill\\\\ cos(180^o-x)\implies cos(180^o)cos(x)+sin(180^o)sin(x) \\\\\\ (-1)cos(x)+(0)sin(x)\implies -cos(x)$

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2 years ago

Graphing the Solution of an Inequality on the Number Line

katrin2010 [14]

Answer:

x < 4

Step-by-step explanation:

Step 1: Simplify both sides of the inequality.

Step 2: Subtract x from both sides.

Step 3: Subtract 6 from both sides.

Step 4: Multiply both sides by 4/(-1).

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3 years ago