Answer choices............................
Answer:
one solution (-2 ; 5)
Step-by-step explanation:
hello : 2x + 3y= 11
...(*)
-x-5y=-23.....(**)
by(**) : x= -5y+23
put this value into (*) : 2(-5y+23)+3y=11
-10y+46+3y=11
-7y = -35
y=5
but x= -5y+23
so : x= -5(5)+23 =-2
We know that
[perimeter of rectangle]=2*(<span>length+width)
</span>
Let
x-----------> length
y-----------> width
so
P=2*(x+y)-----------> 244=2*(x+y)-----> x+y=122-------> y=122-x
Area=x*y-------> x*(122-x)----> 122x-x²
find the derivative function and equals to zero
122-2x=0-----> 122=2x----------> x=61 m
y=122-x------> y=122-61---------> y=61 m
<span>the maximum area is given by a square
</span>
the answer is
is a square of side 61 m
Before you begin, familiarize yourself and keep in mind the
order of operations- PEMDAS (parenthesis, exponents, multiplication, division,
addition, subtraction). You must do all math problems using this.
17. Add all the
numerators since they are like-terms. 12/3 – then simplify it – 4.
18. Do the inner most
parenthesis first, add the numerators – 3/5. To multiply a fraction and a whole
number, multiply the numerator and the whole number, and then simplify – 15/5,
3, then divide 15 by 3 – and your answer
is 5.
19. Parenthesis first – 10/6. Then multiply the numerator
and the whole number and simplify – 120/6 – 20.
20. Parenthesis – 4.2 – multiply by 8 – 33.6.
21. Parenthesis – 4 – multiply by 3.6 – 14.4.
22. PEMDAS, so division goes before subtraction – 8.4.
Try the rest for yourself; that’s the only way you’ll learn.
Feel free to message me for more help.
