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Anon25 [30]
4 years ago
11

Josh estimates the height of his desk. what is a reasonable estimate?

Mathematics
2 answers:
Zielflug [23.3K]4 years ago
8 0
2 feet is a reasonable answer
Phantasy [73]4 years ago
5 0
2 feet is a reasonable estimate
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Find the slope of a line passing through (-5, -2) and (4, 1)?
dem82 [27]

Answer:

1/3

Step-by-step explanation:

6 0
3 years ago
PLease hurry! i need it! And the testing thing is happening, so before 6 pm?
ololo11 [35]

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8 0
3 years ago
Is the expression 7 (6x-8y) equal to 42x-56y
Bond [772]
Yes☺
you are right 7 times 6 is 42 and 7 times. 8 is 56
3 0
3 years ago
Read 2 more answers
The equation of a circle is x2 + y2 + Cx + Dy + E = 0. If the radius of the circle is decreased without changing the coordinates
tatyana61 [14]

Answer:

There will be no change in C and D but E must increase.

Step-by-step explanation:

We are given a equation of circle as:

x^2+y^2+Cx+Dy+E = 0

it could also be represented in general form of equation of circle as:

(x+\dfrac{C}{2})^2+(y+\dfrac{D}{2})^2=\dfrac{C^2}{4}+\dfrac{D^2}{4}-E

( since we add both the side of the equality by \dfrac{C^2}{4} and  \dfrac{D^2}{4} )

Hence, on comparing the equation with general form of the equation:

(x-g)^2+(y-h)^2=r^2

The center of circle is (g,h) and radius is r.

Here we have the center as:

(\dfrac{-C}{2},\dfrac{-D}{2})

and radius is given aS:

r=\sqrt{\dfrac{C^2}{4}+\dfrac{D^2}{4}-E}\\\\r=\sqrt{\dfrac{C^2+D^2-4E}{4}

r=\dfrac{\sqrt{C^2+D^2-4E}}{2}

As there is no change in the center hence the value of \dfrac{-C}{2} and \dfrac{-D}{2} remains unchanged i.e. the value of C and D remains unchanged.

Now we are given that the radius of the circle is decreased.

that means the change in radius is due to the change in E.

Hence for the quantity r=\dfrac{\sqrt{C^2+D^2-4E}}{2}\\ to decrease E must increase so that the total quantity decreases.

Hence there will be no change in C and D but E must increase in order to decrease the radius of circle.

6 0
3 years ago
Read 2 more answers
A wrestler competes in 40 matches. Of those matches, he won 16. What percent of the matches did the wrestler win?
valkas [14]

Answer:

40%

Step-by-step explanation:

16/40 × 100 = 40%

16 divided by 40 multiplied by 100 will give you your answer which is 40

6 0
2 years ago
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