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B. SOLVE the following questions.
WRITE your SOLUTIONS and BOX your final answer in a piece of paper or notebook.

P.S.: Plss patulong po, deadline ngayon kailangang kailangan po.


B SOLVE The Following Questions WRITE Your SOLUTIONS And BOX Your Final Answer In A Piece Of Paper Or Notebook PS Plss Patulong Po Deadline Ngayon Kailangang Ka class=
B SOLVE The Following Questions WRITE Your SOLUTIONS And BOX Your Final Answer In A Piece Of Paper Or Notebook PS Plss Patulong Po Deadline Ngayon Kailangang Ka class=
B SOLVE The Following Questions WRITE Your SOLUTIONS And BOX Your Final Answer In A Piece Of Paper Or Notebook PS Plss Patulong Po Deadline Ngayon Kailangang Ka class=

Sagot :

Answer:

Step-by-step explanation:

1. A box is (2×-3) by (×+5) by (3×+1), what is the volume of the box

 if x = 3cm ?

Volume of the box is equal to  x  x , or simply multiply all its dimensions - length, width, and height. If x = 3, then

(2×-3) (×+5)(3×+1) = [(2)(3)-3](3+5)[(3(3)+1)]  = ( 3)(8)(10) = 240

Therefore, Volume=240

2. The formula for the area of a triangle is A=bh/2. If the base (b)=10cm and     height(h)=6cm, what is the area of the triangle?

Since area, A = BH/2 = (10 x 6) / 2 = 30

Therefore, Area = 30

3. The length(l) of the rectangle is x²+2×-3 and width(w) is 5×+4 What is the perimeter of the rectangle?

Perimeter of a rectangle is equal to the sum of twice of its length and twice of its width, P = 2L + 2W.

2 x (x²+2×-3) + 2 x (5×+4) = 2x²+4×-6+10×+8 = 2x²+14x+2

Therefore, Perimeter of the rectangle = 2x²+14x+2 units

4. From the sum of 3׳+7ײ-5 and 2ײ + 3×+8 take away  5ײ+×-5.

(3׳+7ײ-5) + (2ײ + 3×+8) - (5ײ+×-5) = (3׳+9ײ+3x+3)-(5ײ+×-5)

= 3׳+4ײ+4x-2

5. What should be added to 3׳+4ײ-7 to have a sum of  4׳+ײ+5?

(4׳+ײ+5) - (3׳+4ײ-7) = (׳-3ײ+12)

Therefore, (׳-3ײ+12) should be added to (3׳+4ײ-7) to have a sum of (4׳+ײ+5.