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maria [59]
3 years ago
10

0.985 rounded to the nearest tenth

Mathematics
1 answer:
GarryVolchara [31]3 years ago
8 0
They always try to trick you with this.  Remember anything 5 or above would round up, anything 4 and under would round down.  So look for the tenth place.  that's the 9.  The number to the right is 8 which is greater than 5.  That means round up.  You can't round it to 0.1 because that takes it back down.  So you just move it over.  The answer is 1.0.
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What is the area of a sector when theta = 15º and r = 4
Afina-wow [57]

Answer:

2.09 sq. units

Step-by-step explanation:

We can simply use the formula for area of a sector of a circle.

Area of sector = \frac{\theta}{360}*\pi r^2

Where  \theta is the angle and r is the radius.

<em>It is given that the angle is 15 and radius is 4. We plug them in and find the area:</em>

<em>\frac{\theta}{360}*\pi r^2\\=\frac{15}{360}*\pi (4)^2\\=\frac{1}{24}*16\pi\\=2.09</em>

<em />

<em>Thus area of sector is 2.09  sq. units.</em>

7 0
3 years ago
For the following system of equations, what is the x-value of the solution?
lesantik [10]

Answer:

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Step-by-step explanation:

Multiply the first equation by -3 and add the second equation.

  -3(-x +2y) +(6y) = -3(6) +(x +18)

  3x -6y +6y = -18 +x +18 . . . . eliminate parentheses

  3x = x . . . . . . . . .simplify

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4 0
3 years ago
1. In some music, a whole note equals one measure, a quarter note
Ipatiy [6.2K]

Answer:

3 eighths are needes to make up the rest of the measure.

Step-by-step explanation:

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2/4 + 1/8+x=1

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x=1 - 5/8

x=3/8

We need three eights.(Because 3/8=1/8+1/8+1/8 and 1/8 represents an eights)

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3 years ago
Given triangle abc with b=10 and c=12 what is the measure of angle a that will maximize the area of the triangle
Natali [406]
So use the <span>Pythagorean Theorem. A^2 + B^2 = C^2    10^2 +12^2 = 15.6 hope this helps.

</span>
6 0
4 years ago
Negative 820 square root
erma4kov [3.2K]
A negative number doesn't have a square root...
only one number has to be negative not both... 
and 820 doesn't have a perfect square root... 
it would be 28.635...
7 0
3 years ago
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