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kotykmax [81]
2 years ago
7

Given that f(x) = ax – 5 and f(4) = 15, determine the value of a.

Mathematics
1 answer:
agasfer [191]2 years ago
8 0

Given that f(x) = ax – 5 and f(4) = 15, then the value of a is 5

The given function is:

f(x)  =  ax  -  5

If f(4)  =  15, then x = 4

Substitute x = 4 into f(x) = ax - 5

f(4)  =  a(4)  -  5

15   =  4a   -  5

Solve for a by adding 5 to both sides

15  +  5  =  4a  -  5  +  5

20    =  4a

Divide both sides by 4

4a/4   =  20/4

a    =  5

Given that f(x) = ax – 5 and f(4) = 15, then the value of a is 5

Learn more on linear functions here: brainly.com/question/15602982

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mina [271]

The answer is 44 and if he deposits it is 33 dollars:

11x4

1x4=4

1x4=4

So 11x4=44

And if he deposits 11 he will have 33

3 0
3 years ago
Find the equation of the line that is perpendicular to the line x = −5 and passes through the point (1, π).
Tanzania [10]

The line x = -5 is a vertical line, therefore the line perpendicular to this line is the horizontal line of the form y = a.

We know that it passes through the point (1, π) → x = 1, y = π.

Therefore we have answer: A) y = π.

5 0
3 years ago
Is the product of two prime numbers a prime number or a composite<br> number?
abruzzese [7]

Step-by-step explanation:

No, the product of two (or more) prime numbers cannot result in another prime number. By definition, a prime number is a number that is divisible by 1 or itself - the act of multiplying two or more primes together will always yield a number divisible by 1, itself and the prime numbers multiplied together to achieve it.

4 0
2 years ago
Read 2 more answers
Find the exact value of cos 75 by using a sum or difference formula
anygoal [31]
Cos 75 = 45 + 30

Formula: cos 45 x cos 30 - sin 45 x sin 30

Cos 45 = root 2 / 2
Cos 30 = root 3 / 2
Sin 45 = root 2 / 2
Sin 30 = 1 / 2

3 0
3 years ago
a piece of thread is 11/12 inches long. Jill needs to cut the thread into 1/6 segments how many segments can she cut?​
zubka84 [21]
Jill can cut 5.5 segments from the amount of thread she has.
5 0
3 years ago
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