3 years ago

Write the following using algebraic notation, using the letter x for any

Mathematics

1 answer:

lbvjy [14]3 years ago

4 0

9514 1404 393

Answer:

2(x+1)

Step-by-step explanation:

x . . . I think of a number

x +1 . . . add 1

2(x +1) . . . double the result

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Solve the system of equations using substitution or graphing.

jok3333 [9.3K]

The correct answer is (-4, -3)

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3 years ago

The diameter of a circle is 18 cm. Find its area in terms of pi

Kobotan [32]

Answer:

I love algebra anyways

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Step-by-step explanation:

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3 years ago

Solve <br>In 2x + In 2=0

irakobra [83]

Solving $ln(2x)+ln(2)=0$ we get, $x=\frac{1}{4}$

Step-by-step explanation:

We need to solve: $ln(2x)+ln(2)=0$

Solving:

$ln(2x)+ln(2)=0$

Adding -ln(2) on both sides:

$ln(2x)+ln(2)-ln(2)=0-ln(2)$

$ln(2x)=-ln(2)$

Using logarithmic rule: if $log_a b =c\,\,then\,\, b=a^c$

So,

$2x=e^{-ln(2)}$

Simplifying:

$2x=(e^{ln(2)})^{-1}\\e^{ln(2)}=2\\2x=(2)^{-1}\\2x=\frac{1}{2} \\x=\frac{1}{2x2}\\x=\frac{1}{4}$

So, Solving $ln(2x)+ln(2)=0$ we get, $x=\frac{1}{4}$

Keywords: Logarithms

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4 0

3 years ago

Which number is prime... 11. 49. 51. 81

Rzqust [24]

The answer to your question is 11

8 0

4 years ago

What is 82,119 rounded to the nearest ten thousand?

Stels [109]

80,000.
To round up to the nearest ten thousand, we would see if the next lower place value has a amount either 5 or higher or 4 or lower.
If it’s five or higher, we round up.
If it’s four or lower, we round down.
We can see that the number in the ten thousands place is 8. The number in the place value after 8 is 2.
2<5 so we round down.
The answer is 80,000.
Hope this helps!

8 0

3 years ago