rewrite the following equation as a function of x.

25x⁴-625y-500=0

a. f(x)=1/25x⁴+4/5

b. f(x)=-25x⁴+5/4

c. f(x)1/25x⁴-4/5

d. f(x)=25x⁴-5/4

C. f(x)1/25x⁴-4/5

Step-by-step explanation:

I got it right in a test.

i would say c is the best answer, hope it's right!

good luck! =)

cutie~

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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step-by-step explanation: