It’s not a statistical question
Answer:
5
Step-by-step explanation:
First multiply 7 and 4
7 * 4 = 28
Then divide 140 by 28
140/28 = 5
Height is 5
Step-by-step explanation:
- 8 (3n - 5) \\ - 24n + 40 \\ please \: give \: full \: question \\
Answer:
Roots are [4, -14}.
Step-by-step explanation:
1/2 (x+5)^2 + 2 = 42.5
Work out the square of the parentheses:
1/2 ( x^2 + 10x + 25) + 2 = 42.5
Multiply the parentheses by 1/2:
1/2 x^2 + 5x + 12.5 + 2 = 42.5
Subtract 42.5 from both sides of the equation:
1 /2x^2 + 5x +14.5 - 42.5 = 0
Simplify:
1/2 x^2 + 5x - 28 = 0
Multiply through by 2 to get rid of the 1/2:
x^2 + 10x - 56 = 0
Factor:-
(x + 14)(x - 4) = 0
Either x + 14 = 0 giving x = -14.
or x - 4 = 0 giving x = 4.
Answer:
-42
Step-by-step explanation:
2^3+(2-10)-42
8+(-8)-42
0-42
= -42
