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3 years ago

A polygon with side lengths of 6, 9, and 15 forms a triangle. True False

Mathematics

2 answers:

Leni [432]3 years ago

6 0

I believe the answer is false

Butoxors [25]3 years ago

3 0

Try this: Combine 6 and 9, obtaining 15.

Compare this sum, 15, to the length of the 3rd side: 15.

If placed end to end, the 2 sides with lengths 6 and 9 form a new line of length 15. We'd end up with this new line superimposed on the 3rd side (with length 15).

Think: Do 2 straight lines of length 15, superimposed on one another, form a triangle?

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2 years ago

Please help! What is the answer?

telo118 [61]

Answer: 6.4cm

Step-by-step explanation:

The area of a trapezoid is given as:

= 1/2(a + b)h

We then slot the given values into the formula. This will be:

1/2(15.8 + b) × 7.3 = 81.03.

7.3(15.8 + b)= 81.03 × 2

7.3(15.8 + b) = 162.06

115.34 + 7.3b = 162.06

7.3b = 162.06 - 115.34

7.3b = 46.72

b = 46.72/7.3

b = 6.4

Therefore, the answer is 6.4cm.

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3 years ago

F(x)=x2 + 2x2-x-2 Help please

mel-nik [20]

The answer is d. Hopefully you get it right

6 0

3 years ago

Given f(x)= 3x+2, what is the Inverse Function?

Grace [21]

Answer:

Step-by-step explanation:

For this case we must determine the inverse of the following function:

$f(x)=3x-2$

Step 1:

We would write

$y=f(x)$ or $y=3x-2$

Step 2:

We clear x:

$y+2=3x$

$\frac{y+2}{3}=x$

Step 3:

"x" and "y" are exchanged:

$y=\frac{x+2}{3}$

The inverse is:

$f^{-1}(x)=\frac{x+2}{3}$

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3 years ago

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Dafna11 [192]

Answer:

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Step-by-step explanation:

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