3 years ago

Find the distance between (3,3) and (4,1)

Mathematics

1 answer:

Varvara68 [4.7K]3 years ago

5 0

Answer:2.24

Step-by-step explanation:

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√(2x-5)=1+√(x-3)

Ostrovityanka [42]

Answer:

x = 3 only

Step-by-step explanation:

$\sqrt{2x-5} =1+\sqrt{x-3}$

$\implies 2x-5=(1+\sqrt{x-3})^2\\\\ \implies 2x-5=x+2\sqrt{x-3} -2$

$\implies x-3=2\sqrt{x-3}$

$\implies (x-3)^2=(2\sqrt{x-3})^2$

$\implies x^2-6x+9=4x-12$

$\implies x^2-10x+21=0$

$\implies (x-3)(x-7)=0$

$\implies x=3, x=7$

Check by substituting found values of x into original equation:

$x=3 \implies \sqrt{2(3)-5} =1+\sqrt{3-3} \implies 1 = 1 \ \ \ \checkmark$

$x=7 \implies \sqrt{2(7)-5} =1+\sqrt{7-3} \implies 3\neq 2 \ \ \ \ incorrect$

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3 years ago

George rode his bike 13 15/4 miles on Saturday, and another 89.4 miles on Sunday. How far did he ride his bike in total on the w

MArishka [77]

He rode 106.15 miles in all because 13 15/4 as a decimal is 16.75. 89.4 plus 16.75 equals 106.15

7 0

3 years ago

A fossil is found that contains 10% of the amount of carbon- 14 found in a living being. About how old is the fossil?

Eduardwww [97]

The answer is b i think
sorry if wrong

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3 years ago

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The difference between two numbers is 3. What is the larger number if the smaller number is -4? *

UNO [17]

Answer:-1

Step-by-step explanation:

Subtract plus 3

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3 years ago

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A hose is left running for 240 minutes to 2 significant figures. The amount of water coming out of the hose each minute is 2.1 l

Gre4nikov [31]

Answer:

Hello,

Step-by-step explanation:

Let say t the time the hose is left running

235 ≤ t < 245 (in min)

Let say d the amount of water coming out of the hose each minute

2.05 ≤ d < 2.15 (why d : débit in french)

235*2.05 ≤ t*d < 245*2.15

<u>481.75 ≤ t*d < 526.75 </u> (litres)

6 0

3 years ago

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