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amid [387]
3 years ago
8

The point on the number line shows the opposite of 2 1/2 , or the opposite of the opposite of .

Mathematics
2 answers:
Fynjy0 [20]3 years ago
5 0
I think the answer is -21,-12
Vitek1552 [10]3 years ago
4 0

Answer:

-2 1/2

Step-by-step explanation: the opposite of the opposite is the same number but negative

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The volume of cube is 343 cubic centimeters.What is the suface area of the cube
Ann [662]
The cube root of 343 is 7.
One side has an area of 7*7 = 49 square cm
There are 6 sides to a cube
6 * 49 is the surface area = 294
7 0
3 years ago
Part 1<br> Simplify each fraction. Some fractions can be simplified more<br> than once.<br> 66/108
levacccp [35]

Answer:

11/18

Step-by-step explanation:

divide the numerator and denomonater by the GCD, whic is 6.

then you would get the reduced fraction of 11/18

4 0
3 years ago
The number of people , d, in thousands applying for medical benefits per week in a particular city can be modules by the equatio
Mekhanik [1.2K]

Answer:

<h2>4773 peoples.</h2>

Step-by-step explanation:

Given the number of people d, in thousands applying for medical benefits per week in a particular city c modeled by the equation d(t)=2.5 sin(0.76t+0.3)+3.8 where t is the time in years, the maximum number of people tat will apply will occur at d(t)/dt = 0

Differentiating the function given with respect to t, we will have;

d(t)=2.5 sin(0.76t+0.3)+3.8

First we need to know that differential of any constant is zero.

Using\ chain\ rule\\\frac{d(t)}{dt} = 2.5cos(0.76t+0.3) * 0.76 + 0\\ \\\frac{d(t)}{dt} = 1.9cos(0.76t+0.3)

If \frac{d(t)}{dt} =0 then;

1.9cos(0.76t+0.3) = 0\\\\cos(0.76t+0.3)  = 0\\\\0.76t+0.3  = cos^{-1} 0\\\\0.76+3t = 90\\\\3t = 90-0.76\\3t = 89.24\\\\t = 89.24/3\\\\t = 29.75years

To know the maximum number of people in thousands that apply for benefits per year in the city, we wil substitute the value of t = 29.75 into the modeled equation

d(t)=2.5 sin(0.76t+0.3)+3.8\\d(29.75) = 2.5 sin(0.76(29.75)+0.3)+3.8\\d(29.75) = 2.5 sin(22.61+0.3)+3.8\\\\d(29.75) = 2.5 sin(22.91)+3.8\\\\d(29.75) = 0.9732+3.8\\d(29.75) = 4.7732\\\\

Since d is in thousands, the maximum number of people in thousands will be 4.7732*1000 = 4773.2 which is approximately 4773 peoples.

3 0
3 years ago
Find the area of the shape.
-BARSIC- [3]

Answer:

12.56

Step-by-step explanation:

area of a circle is A=πr^2

radius is 2

a= 3.14 (2)^2

=3.14 x 4

=12.56

7 0
2 years ago
Write an equation in slope-intercept form of the line with slope −4/5 that contains the point (−5, −4).
Tomtit [17]
From the slope our equation so far is
y = -4/5x + B
Now we find B
-------------------------
To find be all we have to is substitute (-5,-4) for x and y in <span>3x + 5y = 15 
</span>(-4) - (-4/5)( -5) = b
-8 = b
---------------------------------
So your equation would be y = -4/5x - 8
6 0
3 years ago
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