The dot on -1 is open, so the number -1 is not included. You need all real numbers greater than -1.
Answer: D
Hello,
5i or -5i since there would be at least 4 roots
Answer B and E
Answer:
The length of each of the other two sides would be 3.1 cm
Step-by-step explanation:
<u><em>The options of the question are</em></u>
A. 3.1 cm
B. 3.2 cm
C. 4.2 cm
D. 6.1 cm
we know that
An isosceles triangle has two equal sides and two equal interior angles
Let
x -----> the length of each of the two equal sides in the isosceles triangle
The perimeter of one isosceles triangle is equal to
![P=2x+2](https://tex.z-dn.net/?f=P%3D2x%2B2)
Remember that
To maximize the use of the wire, the perimeter of 6 earrings (3 pairs of earrings) must be equal to 50 cm
so
![6(2x+2)=50](https://tex.z-dn.net/?f=6%282x%2B2%29%3D50)
Solve for x
![12x+12=50](https://tex.z-dn.net/?f=12x%2B12%3D50)
![12x=50-12](https://tex.z-dn.net/?f=12x%3D50-12)
![12x=38](https://tex.z-dn.net/?f=12x%3D38)
![x=\frac{38}{12}=3.16\ cm](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B38%7D%7B12%7D%3D3.16%5C%20cm)
therefore
The length of each of the other two sides would be 3.1 cm
the 1st on is 16. the 2nd is 15. She went to the 1st doctor more times
The answer is 3.25 or 3 1/4