All categories

4 years ago

Could I also get help with this one ?

Mathematics

1 answer:

damaskus [11]4 years ago

6 0

Area of a triangle is defined by the following: A = $\frac{1}{2}$ bh where b = base of the triangle and h = height of the triangle.

In this case b = 8cm and h = 9cm
A = $\frac{1}{2}( 8cm)(9cm) = 36 cm^{2}$

You might be interested in

Solve the inequalities and show your work:

stepan [7]

Answer:

x<4

Step-by-step explanation:

x/2-3<-1

Add 3 to each side

x/2-3+3<-1+3

x/2 < 2

Multiply each side by 2

x/2*2 <2*2

x<4

5 0

3 years ago

5 groups of 2 hundredths =

dezoksy [38]

5x0.02=10 hope this helps! :)

7 0

3 years ago

Help Please

pantera1 [17]

7.1 degrees.
5.7-(-1.4)
5.7+1.4= 7.1

Hope I helped!

3 0

2 years ago

Use Cramer’s Rule to solve system of equation.

alisha [4.7K]

$\left\{\begin{array}{ccc}5x+2y=4\\3x+4y+2z=6\\7x+3y+4z=29\end{array}\right\\\\A=\left[\begin{array}{ccc}5&2&0\\3&4&2\\7&3&4\end{array}\right]\\\\\det A=5\cdot4\cdot4+3\cdot3\cdot0+2\cdot2\cdot7-7\cdot4\cdot0-3\cdot2\cdot5-3\cdot2\cdot4=54\\W_x=\left[\begin{array}{ccc}4&2&0\\6&4&2\\29&3&4\end{array}\right]\\\det W_x=4\cdot4\cdot4+2\cdot2\cdot29+6\cdot3\cdot0-29\cdot4\cdot0-3\cdot2\cdot4-6\cdot2\cdot4=108$

$W_y=\left[\begin{array}{ccc}5&4&0\\3&6&2\\7&29&4\end{array}\right]\\\det W_y=5\cdot6\cdot4+3\cdot29\cdot0+4\cdot2\cdot7-7\cdot6\cdot0-29\cdot2\cdot5-3\cdot4\cdot4=-162\\W_z=\left[\begin{array}{ccc}5&2&4\\3&4&6\\7&3&29\end{array}\right]\\\det W_z=5\cdot4\cdot29+3\cdot3\cdot4+6\cdot2\cdot7-7\cdot4\cdot4-3\cdot6\cdot5-3\cdot2\cdot29=324\\\\x=\dfrac{\det W_x}{\det A}=\dfrac{108}{54}=2\\\\y=\dfrac{\det W_y}{\det A}=\dfrac{-62}{54}=-3\\\\z=\dfrac{\det W_z}{\det A}=\dfrac{324}{54}=6$

5 0

3 years ago

Simplify <br><br><br>pls help ASAP

exis [7]

the bottom is 52y^12

and

the top is 8xy^8*2

6 0

4 years ago

Read 2 more answers