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serious [3.7K]
3 years ago
9

What is the area of the triangle?

Mathematics
1 answer:
elixir [45]3 years ago
3 0
Area are all sides multiplied the formula can be found online
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What is 0.82 as a fraction
shepuryov [24]
I am pretty sure it's 82/100.
4 0
3 years ago
Read 2 more answers
Solve for z<br> THANK U SM<br> I WILL MARK BRAINILIEST
Anit [1.1K]

Answer:

z=7

Step-by-step explanation:

Combine like terms: 2z=14

Reduce the greatest common factor on both sides of the equation z=7

answer: z= 7

3 0
2 years ago
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(x+1)(x+8)=<br><br><br> can somebody help me on this
goblinko [34]
X^2+8x+x+8 simplifies to x^2+9x+8
8 0
3 years ago
A rectangular prism has a length of 12 inches, a width of 5 inches, and a height of 4 1/4 inches.
Darya [45]

Answer:

130.56

Step-by-step explanation:

Volume of the prism is 12×5×4.25=255 in³

Volume of the cubes are 1.25³=1.953125 in³

255/1.953125 = 130.56 in³

brainliest plz

5 0
2 years ago
What is the determinant of the coefficient matrix of this system? <br> 4x-3y=-8 <br> 8x-3y=12
gladu [14]

The coefficient matrix is build with its rows representing each equation, and its columns representing each variable.

So, you may write the matrix as

\left[\begin{array}{cc}\text{x-coefficient, 1st equation}&\text{y-coefficient, 1st equation}\\\text{x-coefficient, 2nd equation}&\text{y-coefficient, 2nd equation} \end{array}\right]

which means

\left[\begin{array}{cc}4&-3\\8&-3\end{array}\right]

The determinant is computed subtracting diagonals:

\left | \left[ \begin{array}{cc}a&b\\c&d\end{array}\right]\right | = ad-bc

So, we have

\left | \left[\begin{array}{cc}4&-3\\8&-3\end{array}\right] \right | = 4(-3) - 8(-3) = -4(-3) = 12

8 0
3 years ago
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