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1 year ago

2 √(5) - √(5) + 4 √(5) + √(3) simplify

Mathematics

1 answer:

konstantin123 [22]1 year ago

4 0

Step-by-step explanation:

2√5 -√5 +4√5 +√3

2-1+4√5 +√3

5√5 + √3

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Can someone help me here

bearhunter [10]

Answer:

Step-by-step explanation:

1. sin 241 = sin(61 + π) = -sin61 = -t^(1/2)

2. sin^2 + cos^2 =1, cos 61= (1-t)^(1/2)

3. [2sin^2 (x)sin(x) +2cos^2 (x)sin(x)]/2cos(x) = 2sin(x) / 2cos(x) = tan(x)

4. tan (x), x do not equal to （π/2 +or- kπ）

x do not equal to 90，270。

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2 years ago

What is 9x + 20y = −18

mojhsa [17]

Y = 1/10
Alternate form

- 1
y=-0.1, y=-10

3 0

2 years ago

1) -24, -4, 16, 36, ...<br> Find a23

viktelen [127]

We're given the Arithmetic Progression <em>-24, -4, 16, 36 ...</em> .

We know that a term in an AP is generally represented as:

$\bf a_n\ =\ a\ +\ (n\ -\ 1)d$

where,

a = the first term in the sequence
n = the number of the term/number of terms
d = difference between two terms

We need to find $\sf a_2_3$ .

From the given progression, we have:

a = -24
n = 23
d = (-24 - (-4) = -20

Using these in the formula,

$\sf a_2_3\ =\ a\ +\ (n\ -\ 1)d\\\\\\a_2_3\ =\ -24\ +\ (23\ -\ 1)\ \times\ (-20)\\\\\\a_2_3\ =\ -24\ +\ 22\ \times (-20)\\\\\\a_2_3\ =\ -24\ -\ 440\\\\\\\bf a_2_3\ =\ -464$

Therefore, the 23rd term in the AP is -464.

Hope it helps. :)

7 0

2 years ago

C an somebody please tell me what 9+10 is?

Mekhanik [1.2K]

' 9 + 10 ' is a simple exercise in addition. Its solution is 19 .

There is junk floating around the internet saying that 9+10=21.
That statement is false, and the arithmetic is wrong.
The whole thing is a joke. If you ask someone to prove it, they will
perform a demonstration with Roman numerals, but the way they handle
the Roman numerals is itself defective, and they're hoping you won't notice.

5 0

3 years ago

Divide 6x^4+2x^3-6x^2-14x-1 by 3x+1

kolezko [41]

Using synthetic division, we find the result of the division
(6x^4 +2x^3 -6x^2 -14x -1)/(3(x +1/3))
to be ...
(6x^3 -6x -12)/3 +3/(3x +1)

The result is ...
2x^3 -2x -4 +3/(3x+1)

3 0

3 years ago