Well that depends how much you want to pay at once and how much you earn see if you earn $400.00 it will have to pay five times and the actaully cost should be $2200.

8 0

3 years ago

7<img src="https://tex.z-dn.net/?f=%5Csqrt%20-9" id="TexFormula1" title="\sqrt -9" alt="\sqrt -9" align="absmiddle" class="latex

erik [133]

Answer:

= 21i

Step-by-step explanation:

√-9 = 3i

= 7 . 3i

Multiply the numbers: 7 . 3 = 21

= 21i

Hope this helps!

5 0

3 years ago

The sides of a regular 9-sided polygon have been

Maksim231197 [3]

Answer:

x = 100°

Step-by-step explanation:

As the given shape is a regular polygon, the triangles created by extending the sides are <u>isosceles triangles</u>.

To calculate the base angles of the isosceles triangle, find the interior angle of the regular polygon:

$\textsf{Interior angle of a regular polygon} = \dfrac{180^{\circ}(n-2)}{n}$

$\textsf{(where }n \textsf{ is the number of sides)}$

Therefore:

$\textsf{Interior angle of a regular nonagon} = \dfrac{180^{\circ}(9-2)}{9}=140^{\circ}$

As angles on a straight line sum to 180°, the <u>base angle</u> of the isosceles triangle is:

= 180° - interior angle

= 180° - 140°

= 40°

Interior angles of a triangle sum to 180°.

⇒ 2 base angles + x = 180°

⇒ 2 × 40° + x = 180°

⇒ 80° + x = 180°

⇒ x = 180° - 80°

⇒ x = 100°

4 0

2 years ago

Using the simple interest formula I = PRT, calculate the interest that would be earned.

Korolek [52]

SI = P × R × T

SI = 1000 × 6/100 × 2 = $120

4 0

3 years ago