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Answer:
5+4+3=12
708/12=59
59*5=295
59*4=236
59*3=177
Arline=295, Mariana=236, Sue=177
Step-by-step explanation:
Answer:
Option d
Step-by-step explanation:
First multiply matrix A by 9.
Then multiply the matrix B by 5.
When multiplying a matrix by a number x you must multiply each element of the matrix by x.
<u><em>Then we perform operation 9A</em></u>
<u><em>Now we perform operation 5B</em></u>
Now we add the resulting matrices
Step-by-step explanation:
formula of trapezoid's area =1/2(a+b)(height)
a/b= upper or below part of trapezoid
area of trapezoid=1/2 (4+7)(5)
=1/2 (11)(5)
=27.5cm²