Answer:
... anything less than 2.98??
Step-by-step explanation:
Answer:
The answer is 105.5 kcal/slice of bread.
Step-by-step explanation:
The kcal per gram of:
- protein = 4kcal/g.
- carbohydrate = 4kcal/g.
- fat = 9kcal/g.
Now, you have:
- 1.5 g of fat + 19g of carbohydrate + 4g of protein = 1 slice of bread.
If we multiply the amount of components by his kcal:
- 1.5g * 9kcal/g + 19g * 4kcal/g + 4g * 4kcal/g;
Now gram/gram = 1, and we can cancel the grams in the equation:
- 1.5* 9kcal + 19 * 4kcal + 4 * 4kcal = 105.5kcal;
Finally, the result of the kcal of the slice bread is:
- 105.5 kcal/slice of bread.
maybe C? sorry i’m not the best at this
Step 1: convert the equation into fhe vertex form
To do you can complete squares:
y = - [x^2 + 4x + 3]
y = - [ (x + 2)^2 - 4 + 3]
y = - [ (x + 2)^2 - 1] = - (x+2)^2 + 1
Then the vertex is (-2, 1)
Now you can drasw the vertex
Step 2: Find the roots (zeros)
y = - [ (x + 2)^2 - 1] = 0
(x + 2)^2 - 1 = 0
(x+2)^2 = 1
(x+2) = (+/-) √1
x + 2 = (+/-1)
x = - 2 +/- 1
x = -1 and x = -3
Now you draw the points (-1,0) , (-3,0)
Step 3: find the interception with the y-axis.
That is y value when x = 0
y = - (0)^2 - 4(0) - 3 = -3
Then draw the point (0, -3)
Step 4: given that the coefficent of x is negative (-1) the parabola is open downward.
So, with those four points: vertex (-2,1), (-1,0), (-3,0) and (0,-3), you can sketch the function.