Answer:
(a) 3 - 2x - 2x² (b) -21
Step-by-step explanation:
given, y +2x² = 3 -2x
make y the subject:
y = 3 - 2x - 2x²
if y = f(x)
then
f(x) = 3 - 2x - 2x²
(b)<u> to find f(3) we need to replace x with 3:</u>
<u />
3 - 2(3) - 2*(3)²
-21
Answer:
£23
Explanation:
6x10=60
2x1.5=3
3.14x2^2=12.566
60-3-12.566=44.433
44.43/10=4.43
5 bags
5x4.60=23
=£23
Answer:
B
C
B
Step-by-step explanation:
1. Percent means out of 100
8% = 8/100
.08
B
2. Is means equals and of means multiply
W = 48% *180
W = .48 *180
W =86.4
C
3. Is means equals and of means multiply
80 = 125% * W
80 = 1.25 W
Divide each side by 1.25
80/1.25 = W
64
B
Answer:
The answer is $31,722.
Step-by-step explanation:
10,000 x 1.08 = 10,800
Do this 14 more times, your answer times 1.08.
You end up with 31,721.6911418.
Rounded to the nearest dollar, that would be $31,722.
Answer: 20 strawberries
1 litre of orange juice
500ml yogurt
2
Step-by-step explanation:
Based on the recipe, the average for 1 smoothie, we need buy 5 strawberries, 1/4 litre of orange juice, 125ml yogurt, 1/2 banana
Thus, for 4 smoothies, we need the average quantity for 1 smoothie multi with 4
- 5*4 = 20 strawberries
- 1/4 litre *4 = 1 litre of orange juice
- 125ml yogurt * 4 = 500ml yogurt
-1/2 of banana * 4= 2 banan
