Answer: 12
Step-by-step explanation:
f(2.5) = 2 x (2.5)^2 - 3 x 2.5 + 7
= 2 x 6.25 - 7.5 + 7
= 12.5 -7.5 + 7
= 5 + 7
= 12
Hope this helps!
Answer: 2n
Step-by-step explanation:
Silvia is n, sister is n, total is n+n=2n.
<span>1. </span><span>Round the two given numbers in to
its nearest hundred thousands.
=> produced 7 464 000 tons
=> first, let’s identify where the hundred thousand of this given number is
located.
=> 7 millions, 4 hundred thousands, 6 ten thousands, 4 thousands
=> round to the nearest hundred thousands
=> 7 500 000
=> Produced 21 079 000 tones of wheat
=> let’s determine where is the hundred thousands
=> 2 ten millions, 1 millions, 0 hundred thousands, 7 ten thousands, 9
thousands
=> 21 100 000</span>
Answer:
x = 26
Step-by-step explanation:
1 / 3 (x - 2) = 1 / 5 (x + 4) + 2
1/3x - 2/3 = 1/5x + 4/5 + 2
1/3x - 1/5x = 4/5 + 2/3 + 2
(5x - 3x)/15 = (12 + 10 + 30) / 15
2x / 15 = 52 / 15
2x = 52
x = 52 / 2
x = 26
