Answer:
4. 75
Step-by-step explanation:
To find the area of a triangle, use the formula A = 1/2*b*h. For #4 the base is 15 and the height is 10. So the area is A = 1/2*10*15 = 5*15 = 75.
The area is 75.
Repeat this process with each triangle.
Answer:
Z = 34
Step-by-step explanation:
From the series, we have that:
a = -2
a + d = 7
Hence, -2 + d = 7
∴ d = 7 + 2 = 9
a + 2d = X; a + 3d = Y and a + 4d = Z
-2 + 4(9) = Z
∴ Z = 36 - 2 = 34
Sorry but I don’t see an picture
Answer:
40,320 ways
Step-by-step explanation:
From the above question, we know that there are 8 different coloured crayons
They are arranged in 2 rows, with 4 per row.
The number of different ways through which we can arrange the crayons is determined as:
Since each crayons are differently colored, any color can be first and any color can be in a different spot.
Therefore, this is calculated as:
8!
8! = 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1
= 40,320 ways.