3 years ago

Help me it’s due today

1 answer:

5 0

Answer: um not sure

Step-by-step explanation:

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Vilka [71]

The area of the triangle with vertices $(x_1,y_1),(x_2,y_2),(x_3,y_3)$ is

$\frac{1}{2}\left|\begin{array}{ccc}1&x_1&y_1\\1&x_2&y_2\\1&x_3&y_3\end{array}\right|$ .

Inserting numerical values, the are of the triangle with vertices (0, 0), (6, 2), (4, 8) is

$\Delta = \frac{1}{2}\left|\begin{array}{ccc}1&0&0\\1&6&2\\1&4&8\end{array}\right |\\
\Delta = 0.5(48-8)\\
\Delta = 20 \;square\; units$

7 0

3 years ago

rodikova [14]

Answer:

Step-by-step explanation:

Replace the variable xx with −1-1 in the expression.

f(−1)=−3⋅−1+8f(-1)=-3⋅-1+8

Simplify the result.

Tap for fewer steps...

Multiply −3-3 by −1-1.

f(−1)=3+8f(-1)=3+8

Add 33 and 88.

f(−1)=11f(-1)=11

The final answer is 1111.

=11

I want brainless pleased

8 0

2 years ago

Evgesh-ka [11]

10+5=15 so $100/15= 6.67hrs. She could work about 7hrs.
she could work 7 hrs if rounded to nearest tenth

8 0

3 years ago

nika2105 [10]

5(9 + 7) = 5 x 9 + 5 x 7 = 45 + 35

3 0

3 years ago

tatiyna

9.81 or 98.1 pretty sure it's the first one

3 0

3 years ago