The answer to number 55 is B because if the cube has six numbers, then each number will have a probability of 1/6
Answer:
Step-by-step explanation:
The answer is A, C, D, and E. I just took the test.
The area of steel before cutting:
Area =
cm²
= 
Hence, Area=
Area of steel after cutting out the 11*6 inside dimensions.

As the area should be close to 28 cm square, so equation becomes:
or 
Now for the answer, kindly see the image attached. It gives x=0.76
Hence, the answer is 0.76 cm.
Answer:
The length of y is 8
Step-by-step explanation:
∵ The two chords of the circle intersected at a point
∴ 4 × 12 = 6 × y
∴ y = 48 ÷ 6 = 8
Answer: 8 (The second option).
Step-by-step explanation:
1. To solve this exercise you draw a line to a point O, this lines will bisect the angle of Z∠60°. Then will obtain two into two right triangles with two angles of 30° at the point Z.
2. The lenght XY will be twice the lengt XO or YO.
3. Let's calclate XO as following:

4. Then, XY is:
