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Volgvan
3 years ago
6

May I know why is the answer 1/2? Any idea Thank you!

Mathematics
1 answer:
ElenaW [278]3 years ago
8 0

let's put value of t in equation.

x = 2√t

x = 2√y

x/2 = √y

(x/2)^2 = y

y = x^2 /4

now let's differentiate it with respect to x.

dy/dx = 2x/4 = x/2

differentiating again wrt to x

d^2y/dx^2 = 1/2

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How to complete equation and tell property with 21*blank =9*21
LenaWriter [7]

21*x=9*21

9*21=189

21*x=189

Divide 189 by 21 to solve for X or in this case "Blank"

189/21= 9


5 0
3 years ago
I need help please.
inn [45]
➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖
6.008 can be written as =

▪️6008 / 100
▪️6008 / 100
= 3004 / 50
= 1502 / 25
= 1502 / 25 in mixed fraction .
➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖
That’s it...
7 0
3 years ago
A class consists of 55% bots and 45% girls. It is observed that 25% of the class are boys and scored an A on the test, and 35% o
oksian1 [2.3K]

Answer:

0.1575

Step-by-step explanation:

Probability of picking a girl is 0.45 and probability of a girl scoring A is 0.35.

Therefore probability of a girl scoring A is 0.45*0.35=0.1575

8 0
3 years ago
100pts help with math study guide?
OleMash [197]
C=90°

Since the triangles are similar, the angles will be the same. A corresponds with D and equals 75° and B corresponds with E and equals 15°, so C and F must be 90°, since the angles in a triangle add up to 180°.

Hope this helps :)
7 0
3 years ago
Read 2 more answers
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aleksklad [387]

Answer:

a

Step-by-step explanation:

do 2 x 2 you should get the right answer

8 0
3 years ago
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