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Sonja [21]
3 years ago
12

Write in ordinary form 8.14 x 10-8

Mathematics
1 answer:
amid [387]3 years ago
8 0

Answer:

Hello!

______________________

8.14*10=81.4 Is correct

Step-by-step explanation: Multiply 10 by 8.14.

Hope this helped you!

:D

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The coordinates of the endpoints of AB and CD are A(2,
Ratling [72]

Answer:

Option 1: CD is a perpendicular bisector of AB

Step-by-step explanation:

Let us find out the slopes of various line segments and the Distances and then we will draw the conclusions accordingly.

Formula to find slope

m= \frac{y_2-y_1}{x_2-x_1}

Formula to Find Distance between two points

D=\sqrt{(y_2-y_1)^2+(x_2-x_1)^2}

mAB ( represents , Slope of AB )

1. mAC= \frac{3-2}{2-5}=\frac{1}{-3}=-\frac{1}{3}

2. mBC=\frac{2-1}{5-8}=\frac{1}{-3}=-\frac{1}{3}

3. mCD=\frac{5-2}{6-5}=\frac{3}{1}=3

4. AC=\sqrt{(3-2)^2+(2-5)^2} =\sqrt{(1)^2+(-3)^2}=\sqrt{1+9}=\sqrt{10}

5. BC=\sqrt{(2-1)^2+(5-8)^2} =\sqrt{(1)^2+(-3)^2}=\sqrt{1+9}=\sqrt{10}

mAC = mBC  , and C is common point , hence these three are collinear points  making a straight line whole slope is -\frac{1}{3}

mAB=-\frac{1}{3}

mCD=3

mAB \times mCD = -\frac{1}{3} \times 3 = -1

Hence CD ⊥ AB

Also

From Point 4 and point 5 above , we see that

AC = CB

Hence CD bisect AB at C, also CD ⊥ AB

There fore

CD is a perpendicular bisector of AB

Therefor option 1 is true

4 0
3 years ago
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3 years ago
Express 900cmcubic in dm cubic​
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Answer:

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Step-by-step explanation:

1 dm = 10cm

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1000 cm³ .............. 1 dm³

900 cm³ ................x dm³

x = 900×1/1000 = 0.9 dm³

6 0
2 years ago
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If 20 tickets to a carnival cost $120.00, make a
aivan3 [116]
120/20=6 so it’s six dollars a ticket
1=$6
3=$18
4=$24
5=$30
6=$36
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8 0
2 years ago
What is the answer to -7y=-91
Fofino [41]
The answer to this question is y = 13 
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