Answer:
The answer is -77
Step-by-step explanation:
Ok, so assuming by x2 you mean x squared, I will solve this. So basically when you have a function, f(-7) would mean that you would have to replace all the x's in the equation with -7. So let's write that out. that would be f(-7) = -7^2 + (-7*4). So now according to PEMDAS, you would solve the exponent first, and -7^2 is equal to -49, because when you solve it you would do -(7^2), which is -(49), which is then -49. So now you have f(-7)= -49+ (4*-7). Solving for (4*-7), you get -28. This leaves you with -49 + (-28), which is -49 - 28. Simplifying that, you get the answer, which is -77.
Answer:
We set up 2 equations
A) C + A = 100
B) 5C + 12A = 780
We multiply A by -5
A) -5C -5A = -500 then we add B
B) 5C + 12A = 780
7A = 280
Number of Adults = 40
5C = 780 - 40*12
5C = 780 -480
5C = 300
Number of Children = 60
Step-by-step explanation:
Answer:
-1 as minus one whole is less than minus 0.5
Step-by-step explanation:
Answer:
The median for the students is 2 and the median for the teachers is 3.
Step-by-step explanation:
Answer:
Option 4 is the right answer.
Step-by-step explanation:
As we know in the given circle area of minor segment having an angle ∅ and radius of the circle r is shown by
Area of the minor segment / Area of the circle = ∅ / 360° (∅ is in degrees)
Area of the minor segment / πr² = ∅ / 360°
Area of the minor segment = (∅ / 360°) × πr²
Therefore Option 4 is the right answer.
