Which of the following exponential functions goes through the points (1, 12) and (236)
2 answers:
Answer:
y = 4
Step-by-step explanation:
For an exponential function in the form
y = a
Use the given points to find the values of a and b
Using (1, 12), then
12 = ab → (1)
Using (2, 36), then
36 = ab² → (2)
Divide (2) by (1)
=
, then
3 = b
Substitute b = 3 into (1) for value of a
12 = 3a ( divide both sides by 3 )
4 = a
Thus
y = 4 ← is the exponential function
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Answer:
The value of x is - 11
Step-by-step explanation:
Given as :
∠ M = (5x +90) °
∠ R = 55°
The sum of measure of angle M and R are complementary
Complementary Angle are those when sum of two angle equal to 90°
∵ Angle M and R are complementary in nature
∴ ∠ M + ∠ R = 90°
Or, (5x +90) ° + 55° = 90°
Or, 5x = 90° - 90° - 55°
Or, 5x = - 55°
∴ x = - = - 11
Hence the value of x is - 11 Answer
Option C : $6.50 is the right answer
Step-by-step explanation:
Given
Price of one discounted ticket = $4.00
Total amount spent on discounted tickets = $60.00
So,
Hence he bought 15 tickets
Now,
If he had bought without discount he would have paid $37.50 so
Total price without discount will be: $60.00 + $37.50 = $97.50
So,
Price of one ticket before discount:
Hence,
Option C : $6.50 is the right answer
Keywords: Unit price, linear equation
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