On page number 3 Q1 AND Q2 I NEED THE ANSWER PLS HELP ME OUTLOOK IN THE PDF AND GO TO PAGE 3
1 answer:
Answer:
Q2
(a) A = 150 cm², Peri = 50 cm (b) A = 64 cm², Peri = 32 cm (c) A = 74 cm², Peri = 33 cm
Step-by-step explanation:
From the pdf file attached,
Q1.
If the area of each square is 1 cm³, Therefore,
The length of each square in the diagram is 1 cm.
To draw the a rectangle on the diagram such that the perimeter is 12 cm.
We have to count 4 squares from left to right, and then, 2 squares from up to down
As shown is the diagram attached.
Q2
(a) Area = (l+b)
Where l = 15 cm, b = 10 cm.
Area = 15×10
Area = 150 cm²
While
Perimeter = 2(l+b)
Perimeter. = 2(15+10)
Perimeter. = 2(25)
Perimeter. = 50 cm
(b) Area = L²
Where L = 8 cm
Therefore,
Area = 8²
Area = 64 cm²
While
Perimeter = 4L
Perimeter = 4×8
Perimeter = 32 cm
(c) Area of the compound shape = (5×4)+(6×9)
Area of the compound shape = 20+54
Area of the compound shape = 74 cm²
While
Perimeter = 10+9+6+4+4
Perimeter = 33 cm
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Short answer: (-8)^2 + 8 x -8 = 0
Use PEMDAS
"Evaluate the expression" just means solve until you can't simplify anymore. You must solve it in a certain order according to PEMDAS: Parentheses, Exponents, Multiply, Divide, Add, Subtract.
What does the beginning of the expression look like? It is
.
According to PEMDAS, you must solve what is in the parentheses *first*. But, since there is only a number (-8), there is nothing to solve for and you can move on to exponents.
The squared symbol, the little 2, means you have to square what is *inside* the parentheses. = 64, because -8 times itself is 64.
Next comes multiplication. Remember, we are not working from left to right. We must multiply the values on the far right before we do any adding, because multiplication comes *before* addition.
(64) + (8 times -8)
(64) + (-64)
Finally, we can add. In this case, because we are adding a negative number, we are really subtracting. 64 + -64 equals 0.
Use PEMDAS
"Evaluate the expression" just means solve until you can't simplify anymore. You must solve it in a certain order according to PEMDAS: Parentheses, Exponents, Multiply, Divide, Add, Subtract.
What does the beginning of the expression look like? It is
According to PEMDAS, you must solve what is in the parentheses *first*. But, since there is only a number (-8), there is nothing to solve for and you can move on to exponents.
The squared symbol, the little 2, means you have to square what is *inside* the parentheses.
Next comes multiplication. Remember, we are not working from left to right. We must multiply the values on the far right before we do any adding, because multiplication comes *before* addition.
(64) + (8 times -8)
(64) + (-64)
Finally, we can add. In this case, because we are adding a negative number, we are really subtracting. 64 + -64 equals 0.
Answer:
Step-by-step explanation:
Let
y -----> the profit earned by the hot dog stand daily
x ----> the number of hot dogs sold
we know that
The linear equation that represent this problem is equal to
This is the equation of the line into slope intercept form
where
----> is the slope
---> is the y-intercept (cost of the day's supply)