$\bf \stackrel{\textit{dot product}}{\cdot }\implies (a\cdot c)+(b\cdot d) \\\\[-0.35em] ~\dotfill\\\\ \begin{cases} u=&2i+3j\\ v=&-6i-5j \end{cases}\implies \begin{cases} \\ \end{cases} \\\\\\ \cdot \implies (2\cdot -6)+(3\cdot -5)\implies -27$

4 0

2 years ago

3x +4y = - 23<br>2y - x = - 19<br>What is the solution (x, y) to the system of the equations <br>

zloy xaker [14]

Answer:

all work is shown and pictured

6 0

2 years ago

In math a number m increased by 4 is grater than 7 find m

S_A_V [24]

M + 4 > 7
m - 4 > 7 - 4
m > 3

All numbers greater than 3. {4, 5, 6, ...}

7 0

2 years ago