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Tresset [83]
3 years ago
6

√0.64x² if x≤0 its a simplification problem and the root covers the entire expression

Mathematics
1 answer:
Tanya [424]3 years ago
3 0
The square root symbol (√) signifies the principal square root, that is, the positive one. So √(x^2) = |x|

For x ≤ 0, √(0.64x^2) = -0.8x
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Point O is the center of the circle in the diagram. What is m∠BCA ?
Eduardwww [97]
M ∠ BOA = 360° - 250° = 110°
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Answer: C ) 70°
3 0
3 years ago
??????????????????????????
Mrrafil [7]

Answer:

341°

Step-by-step explanation:

m\angle DPC = m \angle APB = 19° \\ .. (Vertical\: \angle 's) \\\therefore m(arc DC) = m\angle DPC= 19° \\ \because m(arc DBC) = 360°-m(arc DC) \\ \therefore \: m(arc \: DBC) = 360 \degree - 19 \degree \\  = 341 \degree \\  \red{ \boxed{ \bold{\therefore \: m(arc \: DBC)= 341 \degree}}} \\

6 0
4 years ago
The number of coffee shops in a certain country can be modeled by the quadratic function ​f(x)105x²+680x+4296, where​ f(x) is th
grigory [225]

A. X is the number of years after 2000

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Answer for part a: 12,156


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Answer for part b: about 10 years

7 0
2 years ago
What is the function rule for the line?
Papessa [141]

Answer:

A (Wrong)

B (Correct)

C (Wrong)

D (Wrong)

Step-by-step explanation:

The y-intercept is -2 because the line intercepts are touch the y-intercept at -2. Further more find two point on the line that has whole number in the order pair. Which is -\frac{3}{2} meaning that it takes the point to move 3 units down and to 2 right.


7 0
3 years ago
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alexdok [17]
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so y is y.
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the +2 means you will move up or to the right by 2 units

4 0
3 years ago
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