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Rudiy27
2 years ago
13

WORK OUT (8*10^-3)*(2*10^-4)

Mathematics
2 answers:
Talja [164]2 years ago
6 0
(8 x 10^-3) x (2 x 10^-4)

10^-3 = 1/10^3, which is equal to 1/1000

10^-4 = 1/10^4, which is equal to 1/10000

8 x 1/1000 = 8/1000

2 x 1/10000 = 2/10000

(I’m turning these into decimals because it’s easier lol)

0.008 x 0.0002 = 0.0000016

In scientific notation, it is 16 x 10^-7

Hope this helped!
frutty [35]2 years ago
4 0
-First we have to work out what’s in parenthesis.
(8*10^-3)=(8*0.001)=0.008

-This is for the second parenthesis
(2*10^-4)=(2*0.0001)=0.0002

-Now we multiply them together

ANSWER: 0.0000016



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Step-by-step explanation:

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Write a pair of equivalent expressions using distributive property
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The distributive property "distributes" a number through all numbers/terms in a set of parentheses by multiplication.


EXAMPLES
Equivalent expressions are the first and last steps. The middle step just shows the work.

5(2 + 3x)= (5*2) + (5*3x)= 7 + 15x

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ANSWER:
Only one pair below is needed for your answer.

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10(4x + 5)= 40x + 50


Hope this helps! :)

7 0
2 years ago
Two right triangles are shown. First, find the missing leg of the triangle on the right. Then you have two lengths to use to fin
jasenka [17]

Answer:

x = 30m

Step-by-step explanation:

<u>GIVEN :-</u>

There are 2 right-angled triangles.

In the triangle on the right side ,

  • Hypotenuse = 26m
  • Base = 10m

In the triangle on the left side ,

  • Base = 18m

<u>TO FIND :-</u>

  • Length of the common perpendicular to both triangles.
  • Length of the hypotenuse of the triangle on the left side.

<u>FACTS TO KNOW BEFORE SOLVING :-</u>

  • Hypotenuse = \sqrt{Base^2 + Perpendicular^2}.
  • Perpendicular = \sqrt{Hypotenuse^2 - Base^2}

<u>SOLUTION :-</u>

In the triangle on the right side ,

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⇒ Perpendicular of the triangle on right side = Perpendicular of the triangle on left side.

In the triangle on the left side ,

Hypotenuse = \sqrt{24^2 + 18^2} = \sqrt{576 + 324} = \sqrt{900} = 30m

∴ x = 30m

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from the x-axis to furthest point,

there is a difference of 6 units. Height 6

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