A high school has 1,100 students. In a random sample of 40 students, 26 own one or more pets. Predict the number of students at
1 answer:
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Answer:
see explanation
Step-by-step explanation:
Using the rule of logarithms
• x = n ⇔ x =
Hence
with b = 4 and n = - 2
= - 2, then
=
← in exponential form
Answer:
Step-by-step explanation:
to figure out b we can consider the following formula:
the form of vertex coordinate given by
so according to the question
by order pair we obtain:
now substitute the value of h and a to the formula:
simplify multiplication:
cross multiplication:
divide both sides by -1:
now we need to figure out C to do so substitute -7 for x and -5 for y which yields:
simplify square:
simplify multiplication:
simplify addition:
cancel 49 from both sides:
hence,
- b=-14
- C=-54