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Ad libitum [116K]
3 years ago
14

Numerical expression definition

Mathematics
2 answers:
Gre4nikov [31]3 years ago
5 0
A numerical expression is a mathematical phrase involving only numbers and one or more operational symbols.
geniusboy [140]3 years ago
3 0
Relating to or expressed a number or numbers.
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The measures of the acute angles of a right triangle are in the ratio 5:7
Umnica [9.8K]

Answer:

37.5:52.5

Step-by-step explanation:

5u + 7u = 90

12u = 90

u = 7.5

 

So the angles are (5x7.5) =37.5 degrees

(7x7.5) = 52.5 degrees.

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3 years ago
5x/6-x/3+1 =8/9 <br> Find the LCD that would eliminate the fractions
Vadim26 [7]

Answer:

answer is in the picture

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3 years ago
If a randomly selected person can ride a bike to school, what is the probability the person is a boy?
Elina [12.6K]

the answer would be 11 out of 30 because there is 11 boys in total and the total of boys and girls is 30 so the answer is 11 out of 30

5 0
4 years ago
My question is in the picture pls help
eduard
Your answer is accute
3 0
3 years ago
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In a video game, two objects move around the screen according to the equations r = 4cos(0) and r= -1 +
Ugo [173]

Answer:

The correct option is;

\left ( -2,\dfrac{2 \cdot \pi }{3} \right)

Step-by-step explanation:

The given parameters are

The equation of motion of one (the first) object is r = 4·cos(θ)

The equation of motion of the other (the second) object is r = -1 + 2·cos(θ)

Equating both equations gives;

4·cos(θ) = -1 + 2·cos(θ)

4·cos(θ) - 2·cos(θ) = -1

2·cos(θ) = -1

cos(θ) = -1/2

θ = Arccos(-1/2) = 120° = 2·π/3

Therefore, the two equations are equal when θ = 2·π/3 for which we have;

r = 4·cos(2π/3) = -2 and r = -1 + 2·cos(2π/3) = -2

∴ r = 4·cos(2π/3) = -1 + 2·cos(2π/3) = -2

The coordinate that represents a possible collision point of the objects in the form (r, θ) is therefore \left ( -2,\dfrac{2 \cdot \pi }{3} \right)

8 0
3 years ago
Read 2 more answers
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