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jolli1 [7]
3 years ago
13

Aisha just received a paycheck from her new job she spends some of it buying music online and saves the rest in a bank account h

er savings is given by y=50-1.99x where x is the number of songs she downloads at $1.99 per song write the equation in function notation
Mathematics
1 answer:
oee [108]3 years ago
4 0
With Function Notation, f(x) just means the y. Since the equation is y = 50 - 1.99x you just replace y with f(x). If they ask you to solve the equation you created just plug in the number of songs into x. Example: x=5 so f(5)
Hope I helped!
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Solve 4(x + 1) = 4x + 4<br><br> A- No solution<br> B- 0<br> C- All real numbers<br> D- 1
Tcecarenko [31]
The answer is: c- all real numbers
8 0
3 years ago
∠A and ​ ∠B ​ are vertical angles with m∠A=x and m∠B=3x−60 . What is m∠A ?
quester [9]
As they are vertical angles, their magnitude would be equal.
x = 3x - 60
3x - x = 60
2x = 60
 x= 30

In short, Your Answer would be 30

Hope this helps!
3 0
3 years ago
In tennis, a first serve can be an ace, a fault, or it can be returned. In one match, a tennis player hit 24 aces, which was 25
Anastaziya [24]

Answer:

16 faults

Step-by-step explanation:

<u><em>The correct question is</em></u>

In tennis, a first serve can be an ace, a fault, or it can be returned. In one match, a tennis player hit 24 aces, which was 2/5 of all her first serves. If 1/3 of her first serves were returned, how many of the tennis player's first serves were faults?

Let

x -----> the number of all her first servers

y ----> the number of first services returned

z ---> the number of first services faults

we know that

The number of aces plus the number of returned plus the number of faults must be equal to the number of all her first services

so

x=24+y+z

step 1

Find out the number of all her first servers

we have that

24=\frac{2}{5}x

Solve for x

x=24(5)/2\\x=60\ first\ services

step 2

Find out the number of first services returned

y=\frac{1}{3}x

substitute the value of x

y=\frac{1}{3}(60)=20\ returned

step 3

Find out the number of first services faults

x=24+y+z

we have

x=60\\y=20

substitute and solve for z

60=24+20+z

60=44+z

z=16\ faults

6 0
2 years ago
If f(x) = x2 + 1 and g(x) = x – 4, which value is equivalent to mc024-1.jpg
icang [17]
Given that f(x)=x^2-1 and g(x)=x-4, the value of (f*g)(10) will be:
f*g=(x^2-1)(x-4)
=x^2(x-1)-1(x-4)
=x^3-x^2-x+4
=x^3-x^2-x+4

next we find (f*g)(10), we substitute the value of x in our expression.
(f*g)(10)=10^3-10^2-10+4
=894

5 0
3 years ago
Read 2 more answers
Which of the following is true regarding the solution to the logarithmic equation below? log subscript 2 baseline (x 11) = 4. x
frez [133]

The value of x is 5. Thus, the correct statement is:

x = 5 is a true solution because log subscript 2 Baseline (16) = 4

<h3>Data obtained from the question </h3>
  • Log₂ (x + 11) = 4
  • Value of x =?
<h3>How to determine the value of x </h3>

Log₂ (x + 11) = 4

x + 11 = 2⁴

x + 11 = 16

Collect like terms

x = 16 – 11

x = 5

<h3>**Check** </h3>

Log₂ (x + 11) = 4

x = 5

Log₂ (5 + 11) = 4

Log₂ 16 = 4

Find the value of Log₂ 16

Log₂ 16 = n

16 = 2ⁿ

2⁴ = 2ⁿ

n = 4

Thus,

Log₂ 16 = 4

Therefore, the correct answer to the question is:

x = 5 is a true solution because log subscript 2 Baseline (16) = 4

Complete question

Which of the following is true regarding the solution to the logarithmic equation below? log Subscript 2 Baseline (x + 11) = 4. x + 11 = 2 Superscript 4. x + 11 = 16. x = 5. x = 5 is not a true solution because log Subscript 5 Baseline (16) not-equals 2 x = 5 is not a true solution because log Subscript 5 Baseline (16) not-equals 4 x = 5 is a true solution because log Subscript 2 Baseline (16) = 4 x = 5 is a true solution because log Subscript 4 Baseline (16) = 2

Learn more about Logarithm equation:

brainly.com/question/7302008

4 0
2 years ago
Read 2 more answers
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