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Paul [167]
3 years ago
10

If vector A⃗ has components Ax and Ay and makes an angle θ with the +x axis, then...

Mathematics
1 answer:
Lesechka [4]3 years ago
7 0
If vector A⃗ has components Ax and Ay and makes an angle θ with the +x axis, then tanθ = Ay/Ax to get the angle of the vector components. Since the trigonometric function of tanθ is sinθ over cosθ, and since sinθ = y/r and cosθ = x/r.
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Which answer, to the correct number of significant figures, is closest to the true value of the expression: (9.1 x 104 )(1.1 x 1
DIA [1.3K]

Answer : The correct answer is, -13000 g

Explanation :

Significant figures : The figures in a number which express the value -the magnitude of a quantity to a specific degree of accuracy is known as significant digits.

The rule apply for the multiplication and division is :

The least number of significant figures in any number of the problem determines the number of significant figures in the answer.

The given expression is:

(9.1\times 10^4)(1.1\times 10^{-5})(\log 10^{-13})(1000)g

As we know that,

\log 10^{-13}=-13

\Rightarrow (9.1\times 10^4)(1.1\times 10^{-5})(-13)(1000)g

\Rightarrow -13013g

True value means, the rounding off the number. So,

\Rightarrow -13000g

Therefore, the correct answer is, -13000 g

3 0
3 years ago
HELP <br> Solve for x. <br><br> −0.84x≤168<br><br><br><br> Enter your answer, as an inequality
Elenna [48]
X is greater than or equal to -200
3 0
3 years ago
3(x+1)(x-1)=7x<br> (By quadratic formula)
Vlada [557]

Answer:

Step-by-step explanation:

3(x^{2} - 1) = 7x\\ 3x^{2} - 7x - 3 =0

x = [-(-7)±\sqrt{49 - 4(3)(-3)}] / 2(3)

x= (7 ±√85) / 6

3 0
3 years ago
12c - 4c + 18 = 50 solving for variable
iren [92.7K]

Answer:

c=4

Step-by-step explanation:

subtract 50-18= 32

then subtract 12c-4c= 8c

8c=32

divide 8c by 32 which gives you

c=4

5 0
4 years ago
Read 2 more answers
Vanessa invested$2,500 into an account that will increase in value by 3.5% each year. Write an exponential function to model thi
natulia [17]
Y = 2,500 x 1.035^x
2,500 x 1.035^20 = 4,974.5 (result is rounded)
4 0
3 years ago
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