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snow_lady [41]
3 years ago
13

Which shows a rational number plotted correctly on a number. line

Mathematics
1 answer:
aliina [53]3 years ago
4 0

Answer:

If this is the question you are referring to, then the answer is B, which is already highlighted for your convenience.

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Tara standing 20 feet from a tree and the angle of elevation is 72°. About how tall is the tree?
Zinaida [17]

Answer:

Approx 61.554 feet

Step-by-step explanation:

Since we are dealing with the opposite and adjacent sides, we will use tangent as our ratio.

Since the angle of elevation is 72 degrees, the left side of our equation is tan(72).

The right side of the equation is opposite over adjacent.

x/20

Set these equal to each other.

tan(72) = x/20

Simplify.

20 tan(72)=x

20(3.078) = x

x is approximately 61.554.

4 0
3 years ago
What quadratic formula do I need to use to solve 3x(x+6)=-1
timofeeve [1]

Answer:

\Large  \boxed{x_1=\frac{9+\sqrt{51} }{3}  \ \  ;  \ \ x_2=\frac{9-\sqrt{51} }{3} }

Step-by-step explanation:

\displaystyle \Large \boldsymbol{} 3x(x+6)=-10  \\\\3x^2+18x=-10 \\\\3x^2+18x+10=0 \\\\D=324-120=204 \\\\ x_{1;2}=\frac{18\pm2\sqrt{51} }{6} =\frac{9\pm\sqrt{51} }{3}

3 0
3 years ago
Geometry help please! Which rule explains why these triangles are scalene in both of these problems? A. SSS B. SAS C. AA D. None
yKpoI14uk [10]

Answer:

B. SAS

Step-by-step explanation:

67-61 degrees-47

side-angle-side

SAS

4 0
3 years ago
A rug is 4 m wide. How much is this in centimeters?
Crank
It's very simple
1m=100cm
4m=4×100=400cm
6 0
3 years ago
Read 2 more answers
The explicit rule for a sequence is an=14-9n <br> What is the recursive rule for the sequence?
natulia [17]
You have to add it then divide it 
6 0
3 years ago
Read 2 more answers
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