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Thank you sir

4%

Much simpler: Since ab = 100, once you know a + b = 80, substitute 80-b for a in the first equation: (80-b)b = 100 80b - b^2 = 100 b^2 - 80b + 100 = 0 Use quadratic equation as before.

a^2 = b + 73 (1) b^2 = a + 73 (2) Subtracting (2) from (1): a^2 - b^2 = b - a (a + b)(a-b) = -(a-b) Dividing by (a-b) since a <> b: a + b = -1 (3) Adding (1) and (2): a^2 + b^2 = a + b + 146 = -1 + 146 = 145 Since b = -(a + 1) (from (3)): a^2 + (-(a + 1))^2 = 145 a^2 + (a+1)^2 - 145 = 0 a^2 + a^2 + 2a + 1 - 145 = 0 2a^2 + 2a - 144 = 0 a^2 + a - 72 = 0 (a + 9)(a-8) = 0 Remember a + b = -1 when (a + 9) = 0, a = -9 and b = 8 when (a - 8) = 0, a = 8 and b = -9

500 to the power 375 is also very easy and correct answer

4%Ⓜ️

(3^7)*(9^3) 9=3^2, so (9^3) =(3^2)^3 =3^(2*3) =3^6 (3^7)*(9^3) =(3^7)*(3^6) =3^(7+6) =3^13 The correct answer is choice C.. GG.

Left-Hand-Side: sqrt((5*sqrt(5))) 5*sqrt(5) =(5^1)*(5^(1/2)) =5^(1+(1/2)) =5^(3/2) So, sqrt(5^(3/2)) =(5^(3/2))^(1/2) =5^((3/2)*(1/2)) =5^(3/4) Right-Hand-Side: 25^x =(5^2)^x =5^(2*x) =5^(2x) Therefore, 5^(3/4)=5^(2x), which implies that (3/4)=2x, or equivalently, 2x=(3/4). Dividing both sides by 2 (i.e., multiplying both sides by (1/2)) gives us that x=(3/4)*(1/2)=(3/8). Hence, x=(3/8), and we are now done. The correct answer is choice C.. GG.

For multiple choice questions, just do them backwards: Look at the given answers and realize instantly A and B are way to small. Square c in your head and get 10/4 which is 2.5, queck! Takes every sane person 1,5 seconds😂

((20^10)/(40^5)) (Given) Break 20^10 up as (20^5)*(20^5). (((20^5)*(20^5))/(40^5)) Rearranging some terms gives us the following: ((20^5)/(40^5))*(20^5) We focus on the first expression: ((20^5)/(40^5))=(20/40)^5=(1/2)^5 Going back to the problem, we have that ((1/2)^5)*(20^5) ((1/2)*20)^5 (10)^5 (See below for Scratch Work) Scratch Work: (1/2)*20=(1/2)*(20/1)=(20/2)=10 Hence, our final answer is 10^5, which is answer choice A.. GG.

Why are you saying that 4= 400%? That’s wrong! So 80%=8/10 and 20%=2/10 so are you saying that when you divide them the answer is 400? The answer to the question is 4! Not 4% and not 400%

The answer is None! The answer is 4

x = log₄12 = 1 + log₄3 = 1 + lg(3) / (2 lg(2))

500=2x250 reemplazo base y exponente y simplifico Resultado 590²⁵⁰

4 ans

500^500/250^250 500^500 = 500^250.500^250 (500/250)^250 . 500^250 (2)^250 . 500^250 (2.500)^250 1000^250 (10^3)^250 10^750

Isny 10 ko 14.14 sey multiply kue Kiya last ma samjh ni ai?

Sir aapka silver play button aaya

2×4 = 8 400%

👌 👍 😍 🥰 👌

C. Om.

✔(x + 51) = ✔x + 1 [✔(x + 51)]² = (✔x + 1)² x + 51 = (✔x)² + 1² + 2✔x x + 51 = x + 1 + 2✔x 51 - 1 = 2✔x + x - x (50) ÷ 2 = (2✔x) ÷ 2 25 = ✔x (25)² = (✔x)² 625 = |x| 625 = x ; -625 = x

Right answer is 4% not 400%

Still no idea

400% bhi 4 hota hai 400/100 = 4 So your chose option is right

😂😂😂😂 utna somoy menullification korlei ho jata

You are wrong method ✖️ Right ans is 4✔️

merci

C

C) 3/8

en fesant le calcul sous la racine je trouve 676 -576 dc 100 mais je ne comprends pas l'intêrêt de factoriser en 1 ligne et ensuite comment vous trouvez racine 50 *2, svp?calcul normal suffisant on calcule ce qui a sous la racine, puis à la fin avec . 26/07/24

((5^5)/(25^2)) (Given) ((25*25*5)/(25*25)) (See below for Scratch Work) The two factors of 25 in both the numerator and the denominator cancel each other out, leaving us with just the 5 in the numerator, so the final answer is 5. GG. Scratch Work: 5^5=5*5*5*5*5=25*25*5 25^2=25*25

5

10

Hi

Hi

طرفین رو. به توان دو. میرسونبم میشه چهارصد رو. چهار و....

100

지수 1 차이는 두배차이라는걸 알면, 보는 순간 답은 2⁴⁹가 바로 보임.

ऑप्शन नंबर ए सही है कैलकुलेटर से जोड़कर देख लो राइट आंसर 4%😮😮

100%=always 1 So 400% = 4 If we convert 4 into % then 4/1 ×100= 400% Jab fraction ko % mai Change krte h to 100 se into karte hai Or jab % ko fraction mai badlna ho tab 100 se devide Example 10% ko fraction mai badlna hai to 10×1/100= 1/10 Agar 1/2 ko % mai badlna hai to 1/2×100= 100/2= 50%

A

itna simple question ka solve galat dia hua h apne

bhai ku baccho k bhavshye se khel rhe ho ye solve galat h apka isko delet kardo

C

First view and comment sir

1/2=20%. So 80%=4/5 Solution :- 80% ÷ 20% => 4/5× 5/1 because when we divided the fraction and we invert it => 4 ×100% => 400% HOW IS MY EXPLANATION PLEASE IF IT IS GOOD PLEASE LIKE ❤ =

3⁷.9³ =3⁷.(3.3)³ =3⁷.3³.3³ =3^(7+3+3) =3¹³

i have not seen any logical reason

Option test 🥴🥴🥴 9 ans