Answer:
88
Step-by-step explanation:
Use the algorithm method.
8 14
9 4
- 6
8 8
2 Therefore, 94-6=8894−6=88.
8888
A quadratic function is given by y = ax^2 + bx + c
c(2) = a(2)^2 + 2b + c = 45
4a + 2b + c = 45 . . . (1)
c(4) = a(4)^2 + 4b + c = 143
16a + 4b + c = 143 . . . (2)
c(10) = a(10)^2 + 10b + c = 869
100a + 10b + c = 869 . . . (3)
Solving (1), (2) and (3) gives a = 9, b = -5, c = 19
Therefore, c(x) = 9x^2 - 5x + 19
c(7) = 9(7)^2 - 5(7) + 19 = 9(49) - 35 + 19 = 441 - 16 = 425
Therefore, it costs $425 to produce 7 calculators.
The answer would be C because the inequality is greater than 70 but less then 80.
Answer:
34% = 272 students
100% = 272/34%
= 800 students
Step-by-step explanation:
to check whether the answer is correct
= 34% × 800
= 272 students
Answer:120-96=24 24 more red than yellow
Step-by-step explanation:
