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.
I would say c because FE is a radius BA i think is a chord and EC isn't even a line
Answer:
6
Step-by-step explanation:
<em> ° • .°• ✯</em>
<em> ° • .°• ✯ ★ * ° °· </em>
<em> ° • .°• ✯ ★ * ° °· . • ° ★ • ☄</em>
<em> ° • .°• ✯ ★ * ° °· . • ° ★ • ☄▁▂▃▄▅▆▇▇▆▅▄▃▁▂</em>
Answer:

Step-by-step explanation:
Radius = r = 9 cm
Angle = θ = 200° = 3.5 radians
Now,

Area = 1/2 (9)²(3.5)
Area = 1/2 (81)(3.5)
Area = 282.7 / 2
Area of sector = 141.4 cm²
Answer:
She used 118 inches of ribbon.
Step-by-step explanation:
Convert the yards to inches.
4.5 yards= 162 inches.
Convert feet to inches.
3 feet= 36 inches.
She has 44 inches of ribbon left.
Now you subtract.
162-44= 118