Answer:
23
Step-by-step explanation:
2x+ 8(2)= 30
2x+ 16=30
2x=14
x=7
9514 1404 393
Answer:
24
Step-by-step explanation:
If 7/15 are fond of cricket, the remaining number is 1 -7/15 = 8/15 of the class. The number of students in the class is ...
25 + 20 = 45
so 8/15 of the class is ...
(8/15)(45) = 8(45/15) = 8(3) = 24
24 students are fond of football.
Answer:
a) y = 2x⁴ -18x² +8x +24
b) 4th degree; tends toward +∞ when |x| gets large
Step-by-step explanation:
a) When r is a root of the polynomial, (x -r) is a factor. The given roots mean the factors are ...
y = a(x -(-1))(x -(-3))(x -2)(x -2) = a(x+1)(x+3)(x-2)²
The product of the constant terms is a(1)(3)(2²) = 12a. This is the y-intercept, which is said to be 24. So ...
12a = 24 ⇒ a = 2
The polynomial function is then ...
y = 2(x +1)(x +3)(x -2)²
y = 2x⁴ -18x² +8x +24
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b) The leading coefficient of this 4th-degree polynomial is positive, so when x has large positive or negative values, the function value will tend toward positive infinity.
Answer:
If they work continuously for 8 hours they can bake 32 cookies but that's a really long time to bake lol
Step-by-step explanation:
Answer is 42. 70 x .4 =28. 70-28