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OlgaM077 [116]
2 years ago
14

Someone please help me asap i am confused

Mathematics
2 answers:
Lynna [10]2 years ago
8 0
1- 2000
2- 680000
3- .0000007
4- .00135
5- 3062000
6- 7x10^5
7- 3.2x10^7
8- 4.5x10^-2
9- 3.46781x10^-5
10- 1.3x10^18
trapecia [35]2 years ago
6 0
1.) 2000 2.) 680000 3.) .0000007 4.) .00135 5.) 3062000 6.) 7x10^5 7.) 3.2x10^7 8.)4.5x10^-2 9.)3.46781x10^-5 10.) 1.3x10^18
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A) Rationalise the denominator of<br> 20/root 10<br> Give your answer in its simplest form.
denis-greek [22]

‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎\bigstar \boxed{\large\bf{\leadsto 2\sqrt{10}}}

__________________________________________

\large\bf{Here,}

‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎\large\bf{⟹\frac{20}{\sqrt {10}}}

❒ Multiply the numerator and denominator by \bf{\sqrt{10}}

‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎\large\bf{⟼\frac{20}{\sqrt{10}}\times\frac{\sqrt{10}}{\sqrt{10}}}

‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎\large\bf{⟼\frac{20\sqrt{10}}{(\sqrt{10})^2}}

‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎\large\bf{⟼\frac{20\sqrt{10}}{10}}

‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎\large\bf{⟼2\sqrt{10}}

5 0
2 years ago
Read 2 more answers
Algebra 2 Question, tagged in the link
deff fn [24]
The answer to the question

7 0
2 years ago
How do I resolve this? <br> Como resuelvo esto?
Nikolay [14]

\bf \textit{area of a circle}\\\\ A=\pi r^2~~ \begin{cases} r=radius\\ -----\\ A=144\pi  \end{cases}\implies 144\pi =\pi r^2\implies \cfrac{144\pi }{\pi }=r^2 \\\\\\ 144=r^2\implies \sqrt{144}=r\implies \boxed{12=r} \\\\\\ \textit{circumference of a circle}\\\\ C=2\pi r\qquad \qquad C=2\pi \boxed{12}\implies C=24\pi

4 0
3 years ago
7,14,21,28,35, __
8_murik_8 [283]

Answer:

the patters is that they are multiple of 7.. so next number is 42.

which means option D <u>The missing number is even</u> is correct..

6 0
2 years ago
Which of the following are solutions to the equation below?
inysia [295]

The answer is C and D

First we must make one side of the equation zero, so we subtract 7 on both sides of the equation, making the equation 9x^2 - 6x - 6 = 0

Then we will use the quadratic formula to find the answers.

using the Quadratic Formula where:

a = 9, b = -6, and c = -6

and the formula is 6 +- \sqrt{6^{2} } -4 (9)(6) /2 (9)

6 0
3 years ago
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