Mathematics, 14.12.2019 02:31 thefandomarmy24

5r +3= 3 + 5r
what does are equal

Answers: 2

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Answer from: ciya12

r is equal to all numbers from -infinity to infinity.

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Answer from: dondre54

All real numbers.

Step-by-step explanation:

Any value of r makes the equation true.

Interval Notation:

(- ∞, ∞)

Step 1: Simplify both sides of the equation.

5r + 3 = 5r + 3

Step 2: Subtract 5r from both sides.

5r + 3 - 5r = 5r + 3 - 5r

3 = 3

Step 3: Subtract 3 from both sides.

3 - 3 = 3 - 3

0 = 0

Therefor, your answer would be "All real numbers"

Hope this helps!

Answer from: Quest

Answer: d. 39 cmin the diagram, the approximate length of the minor arc de is 39 centimetres.step-by-step explanation: the formula for the length of an arc in a circle is as displayed below.let the length of the minor arc de = xx = 2( pi )r × angle of sector / 360°from this, we will substitute the values given from the problem into the formula to obtain the length of the minor arc de.x = 2( pi )r × angle of sector / 360°r = radius = 25cmpi as an approximate value = 3.14angle of sector = 120°x = 2( 3.14 )( 25 ) × 120° / 360°x = 157 × 1 / 4x = 39.25x = 39 ( rounded to the nearest whole number as an approximate value )
Ineed as soon as possible ! what is the approximate length of the minor arc de

Ineed as soon as possible ! what is the approximate length of the minor arc de

Answer from: Quest

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,

b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,

and solve for the variable

* lets solve the problem

∵ $7^{x}=77$

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴ $ln(7^{x})=ln(77)$

- use the rule $ln(a^{n})= nln(a)$

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴ $x=\frac{ln(77)}{ln(7)}=2.23$

* the solution of the equation is 2.23 to the nearest 2 decimal places

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5r +3= 3 + 5r
what does are equal...