Answer:
The soda costs 2.20 and the sandwich costs 7.70
Step-by-step explanation:
To find this, set the soda cost as x. We now know that the sandwich cost is 3.5x. Add these together and set equal to 9.90
x + 3.5x = 9.90
4.5x = 9.90
x = 2.20
This is the cost of the soda. Now we can multiply that by 3.5 to get the sandwich cost.
3.5 * 2.20 = 7.70
X-intercepts
f(x) = 0
4x² - 15x - 4 = 0
4x² - 16x + x - 4 = 0
4x(x - 4) + 1(x - 4) = 0
(x - 4)(4x + 1) = 0 ⇔ x - 4 = 0 or 4x + 1 = 0
x = 4 or 4x = - 1 ⇒ x = - 1/4
Answer: -1/4 and 4.
Answer:
I believe I am correct.
1: slope
2: linear equation
3: y-intercept
4: slope-intercept form
5: y-intercept is (0,6) the slope is -2
6: y-intercept is (0,3.4) the slope is 10/6
7: y-intercept is (0,4) the slope is -4/16
Hope this works for you Jack Jiang.
(7,0) is the right option hope this helps :D
Answer:
C
Step-by-step explanation:
