3x + y = 10 >>>>>>
6x + 2y = 20
-4x - 2y = 2
2x = 22
X = 11. Y = -23.
2 ounces each sammich made
x=number of sammiches made
y=amount left
amount left=full-gotten
y=40-2 times number of sammiches
y=40-2x
or
y=-2x+40
D is da answer
If <em>x</em> = -1, you have
2(-1) + 3 cos(-1) + <em>e</em> ⁻¹ ≈ -0.0112136 < 0
and if <em>x</em> = 0, you have
2(0) + 3 cos(0) + <em>e</em> ⁰ = 4 > 0
The function <em>f(x)</em> = 2<em>x</em> + 3 cos(<em>x</em>) + <em>eˣ</em> is continuous over the real numbers, so the intermediate value theorem applies, and it says that there is some -1 < <em>c</em> < 0 such that <em>f(c)</em> = 0.
Answer:
- y-intercept: (0, 3)
- axis of symmetry: x = -1
Step-by-step explanation:
The y-intercept is the constant, 3. It is the value of f(0).
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The axis of symmetry of the quadratic function ...
f(x) = ax^2 +bx +c
is ...
x = -b/(2a)
Here, using that formula gives ...
x = -(2a)/(2(a)) = -1
The axis of symmetry is x = -1.
Answer:
x=3
Step-by-step explanation:
I did a 2-column proof for the explanation :)
