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4 years ago

Explain how to write the number that is 0.02 less than 1.423

Mathematics

1 answer:

irina1246 [14]4 years ago

3 0

You would take 1.423 - .02 = 1.403

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Jordan is five years old. his mother says to him "if you have two apples and i give you two more apples, how many apples will yo

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Answer should be 2 and he says 4

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4 years ago

Find the equation for the circle with a diameter whose endpoints are (3,-1) and (-2,-1)

cricket20 [7]

Answer:

The equation for the circle is: $(x-\frac{1}{2} )^2 + y^2 = (\frac{5}{2} )^2$

Step-by-step explanation:

Here, let us assume the two end points of the diameter are:

P (3,-1) and Q (-2,-1)

Now, as we knew diameter is the chord that passer through the center of the circle.

⇒ Mid point of DIAMETER = Center coordinates of the Circle

Let us assume O(x,y) is the center of the line segment PQ.

So, by MID POINT FORMULA:

$(x,y)= (\frac{3 -2}{2} , \frac{-1-1}{2} ) =( \frac{1}{2},\frac{-2}{2}) \\\implies (x,y) =( 0.5 , -1)$

⇒ The center coordinates of the circle = O(0.5,-1) ...... (1)

Now, RADIUS = Half of DIAMETER

Using DISTANCE FORMULA:

$PQ = \sqrt{(3-(-2))^2 + (-1 - (-1))^2} = \sqrt{(5)^2 + 0} = 5$

So, Radius = 5/2 = 2.5 units

Now, the equation of circle with radius r and center coordinate ( h,k) is given as: $(x-h)^2 + (y-k)^2 = r^2$

Substitute r = 2.5 and (h,k) = (0.5,0) we get:

$(x-0.5)^2 + (y-0)^2 = (2.5)^2\\\implies (x-\frac{1}{2} )^2 + y^2 = (\frac{5}{2} )^2$

Hence the equation for the circle is: $(x-\frac{1}{2} )^2 + y^2 = (\frac{5}{2} )^2$

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4 years ago

How do you write 766% as a decimal

Rashid [163]

7.66. If 100%=1, then 700%= 7. Then if 10%=.1 then 60%=.6. And lastly if 1%=.01 then 6%=.06. Add them all up: 7+.6+.06= 7.66. HTH

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3 years ago

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PLS HELP ASAP NO TROLLS!

galben [10]

Prop Q because the line opposite is the biggest making it the widest angle

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3 years ago

Divide -5/12 and -5/8

kiruha [24]

Answer:

2/3

Step-by-step explanation:

-5/12 ÷ -5/8

Copy dot flip

-5/12 * -8/5

The 5's cancel

-8/-12

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3 years ago

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