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3 years ago

(2.5 × 10^7) ÷ (5 × 10^4) simplified equation

Mathematics

1 answer:

Zarrin [17]3 years ago

6 0

Answer:

0.5 x 10^3

Step-by-step explanation:

(2.5 x 10^7) /(5 x 10^4)

Divide 2.5 by 5 and subtract the powers. We are subtracting the powers because we are dividing. If we were multiplying, we’d add the powers .

This can be written as

2.5/5 x 10^7-4

0.5 x 10^3

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Makovka662 [10]

Answer:

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Step-by-step explanation:

8 0

2 years ago

find x if the distance between points L and M is 15 and point M is located in the first quadrant. L=(-6,2) M=(x,2)

aivan3 [116]

Answer:

Therefore,

$x = 9$

Step-by-step explanation:

Given:

Let,

point L( x₁ , y₁) ≡ ( -6 , 2)

point M( x₂ , y₂ )≡ (x , 2)

l(AB) = 15 units (distance between points L and M)

To Find:

x = ?

Solution:

Distance formula between Two points is given as

$l(LM)^{2} = (x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}$

Substituting the values we get

$15^{2}=(x--6)^{2}+(2-2)^{2}\\\\225=(x+6)^{2}$

Square Rooting we get

$(x+6)=\pm \sqrt{225}=\pm 15\\\\x+6 = 15\ or\ x+6 = -15\\\\x= 9\ or\ x = -21$

As point M is located in the first quadrant

x coordinate and y coordinate are positive

So x = -21 DISCARDED

Hence,

$x = 9$

Therefore,

$x = 9$

3 0

3 years ago

Factorise fully 20x*x-8x

Monica [59]

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2 years ago

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Answer: c) y=1/5x

Step-by-step explanation: took da test

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3 years ago

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Answer:

Step-by-step explanation:

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2 years ago