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Alexandra [31]
3 years ago
11

Find the value of x. A) 10 B) 16 C) 9 D) 14

Mathematics
1 answer:
Jet001 [13]3 years ago
3 0
It’s 10 or 9 I think it is probably 10
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Whats the vertex form of y=x^2-20x+15
Sveta_85 [38]
This looks like a parabola so:
y=x^2 - 20x + 15  -->  x^2 - 20x +15=y
(x^2 -20x)=y - 15  -->  (x - 10)^2=y - 15 +100  ( used complete the square)
(x - 10)^2=y + 85

6 0
3 years ago
Pls help find shaded area
Pavlova-9 [17]
<h3>Exact area = 12pi - 9*sqrt(3)  square inches</h3><h3>Approximate area = 22.1106545749577 square inches</h3>

==========================================================

Work Shown:

Assuming the chord is horizontal along with the diameter, then this means the two smallest minor arcs are both 30 degrees each. This leaves the northern most arc to be 180-30-30 = 120 degrees in measure

A = area of northern sector (you can think of it as a pizza slize)

A = (angle/360)*pi*r^2

A = (120/360)*pi*6^2

A = 12pi

B = area of triangle

B = (1/2)*side1*side2*sin(included angle)

B = (1/2)*6*6*sin(120)

B = 18*sqrt(3)/2

B = 9*sqrt(3)

C = area of shaded region

C = A - B

C = 12pi - 9*sqrt(3)  .... exact area

C = 22.1106545749577 ... use a calculator to get the approximate area

6 0
3 years ago
Find the solution set.<br><br> |x| = -16<br><br> { }<br> {-4, 4}<br> {-16, 16}<br> {-32, 32}
Otrada [13]
This an { } solution  because the absolute value is always a positive number unless there is a negative sign in front of the brackets.  

hope this helps :)

7 0
3 years ago
Read 2 more answers
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V125BC [204]

Answer: 13)74

14)53

Step-by-step explanation:

5 0
3 years ago
A store pays $29.99 for a pair of jeans. The percent of markup is 20%. What is the selling price, including markup, for 5 pairs
Zanzabum

Answer:

$179.94  for 5 pairs of jeans

Step-by-step explanation:

4 0
3 years ago
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