M=0.25 so the answer is a
Part (a)
<h3>Answer: x = -8</h3>
------------------
Work Shown:
2(x-1) = 3(x+2)
2x-2 = 3x+6 .... distribute
2x = 3x+6+2 .... adding 2 to both sides
2x = 3x+8
2x-3x = 8 .... subtracting 3x from both sides
-x = 8
x = -8 ..... multiply both sides by -1
===========================================================
Part (b)
<h3>Answer: x = 5/11</h3>
------------------
Work Shown:
-4(2x-2) = 3(x+1)
-8x+8 = 3x+3 ..... distribute
-8x = 3x+3-8 .... subtract 8 from both sides
-8x = 3x-5
-8x-3x = -5 ... subtract 3x from both sides
-11x = -5
x = -5/(-11) .... divide both sides by -11
x = 5/11
In decimal form, this is approximately equal to 5/11 = 0.4545
<u>Given </u><u>:</u><u>-</u><u> </u>
<u>To </u><u>Find</u><u> </u><u>:</u><u>-</u><u> </u>
- To find the factorised form .
<u>Answer</u><u> </u><u>:</u><u>-</u><u> </u>
Taking the given expression,
→ 4x² - 8x + 4
→ 4x² - 4x -4x + 4
→ 4x ( x - 1 ) -4( x -1)
→ (4x - 4)(x-1)
<u>Hence </u><u>the</u><u> </u><u>required</u><u> answer</u><u> is</u><u> </u><u>(</u><u>4</u><u>x</u><u> </u><u>-</u><u> </u><u>4</u><u>)</u><u>(</u><u> </u><u>x </u><u>-</u><u> </u><u>1</u><u>)</u><u> </u><u>.</u>
Answer: A
golden ratio approximately equals:
(1+sqrt(5))/2=1.618
5/3=1.667
7/5=1.4
10/8=5/4=1.25
17/11=1.545
Change everything to decimal form and see what is closest.
So we can see that the photograph size of 5x3 is the best choice as it is the closest in size to the golden ratio.
Any questions at all please feel free to ask! Thank you so much!
<span> 4×10^7
------------ = 0.5 x 10^4 = 5000
</span><span> 8×10^3
answer
</span><span>3. 5000</span>
