Answer:
isosceles triangle
Step-by-step explanation:
An isosceles triangle has 2 congruent sides
The triangle described here has 2 congruent sides of 8 cm
The triangle is isosceles
Answer:
Length x Width x Height = Volume of Cube


Because half of 8 is 4

Divide 1 by 1/2 or .5... 1 becomes 1/1 and 1/2 is flipped to 2/1, then multiply
Answer:
Please check the explanation.
Step-by-step explanation:
Given
f(x) = 3x + x³
Taking differentiate



solving






now solving




Thus, the expression becomes


Thus,
f'(x) = 3 + 3x²
Given that f'(x) = 15
substituting the value f'(x) = 15 in f'(x) = 3 + 3x²
f'(x) = 3 + 3x²
15 = 3 + 3x²
switch sides
3 + 3x² = 15
3x² = 15-3
3x² = 12
Divide both sides by 3
x² = 4



Thus, the value of x will be:

Would it be 0,-4 and 0,-2