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andre [41]
4 years ago
11

If f(x)=3x+2.5, determine the value of f(3)

Mathematics
1 answer:
djverab [1.8K]4 years ago
8 0

Answer: f(3)=11.5

Step-by-step explanation:

In order to solve this equation, all you have to substitute the value inside of the parenthesis with the value of x in the equation after the equals sign. SO...

f(3)=3x+2.5

f(3)=3(3)+2.5

f(3)=9+2.5

f(3)=11.5

Hope this helps!

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After eating at your favorite restaurant, you know that the bill before tax is
elixir [45]

Answer:

$3.16

Step-by-step explanation:

6% x $52.60 = $3.16 (2dp)

Topic: Percentage

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8 0
3 years ago
Why isn’t the maximum ACT score (36) at the 100th percentile?
irga5000 [103]

Answer and Explanations

ACT score percentile help colleges compare students with one another, rather than just looking at everyone’s score. The  score range is between 1 and 36, the highest score that one can receive on the ACT is 36. Moreover, 36 is the perfect score.

The maximum ACT score (36) is that in 2018, only 3,741 students (out of millions of test-takers) scored a perfect 36 on the ACT.  The 99th percentile of test-takers includes those who earn 35 or 34 on the ACT. We can miss up to five questions on the ACT and still earn a 36. That is a reason why the maximum ACT score is 36 at the 100th percentile.

The ACT score report will provide more information about test-taking experience in the form of sub score. The higher the score,  you will get into the colleges of your choice.

5 0
4 years ago
Which of the following most accurately describes when a debit card transaction takes effect? a. The transaction is completed alm
nika2105 [10]
The sentence on letter A most accurately describes when a debit card transaction takes effect.
>The transaction is completed almost immediately after making the purchase.

>A debit card is a plastic payment card that provides cardholders electronic access to their bank account(s) at a financial institution. Some cards may bear a stored value with which a payment is made, while most relay a message to the cardholder's bank to withdraw funds from a payer's designated bank account.

8 0
3 years ago
Read 2 more answers
13. The area of the rectangle shown below is 2x2 - x - 15 square units. What is the
Anit [1.1K]

Answer:

width = (x - 3)

Step-by-step explanation:

2x² - x - 15 has two factors, one of which is '2x + 5'

we can find the other factor to be 'x - 3', which represents the width

4 0
3 years ago
A farmer needs to fence in a rectangular plot of land, and he has 200 meters of fence to work with. He is going to construct the
zvonat [6]

Answer:

the farmer will need to have 2 pieces of 50 m and one of 100m to maximise the area ( Maximum area=5000 m²)

Step-by-step explanation:

if we assume that the southern fence is not required and if we denote a= length of each lateral side and b= length of the front side , we will have:

Area=A= a*b

Total length of fence=L= 2*a+b

therefore

L= 2*a+b → b= L- 2*a

A= a*(L-2*a) = a*L - 2*a²

therefore

A= a*L - 2*a² → 2*a² - a*L + A = 0

a=  [L ± √((-L)²- 4*2*A)]/(2*2) = L/4  ± √(L²- 8*A) /4

a= L/4  ± √(L²- 8*A) /4

when A goes bigger √(L²- 8*A) diminishes,  but since the minimum possible value √(L²- 8*A) is 0 , then A can not go higher than L²- 8*A=0

therefore

L²- 8*A max=0 → A max = L²/ 8 = (200m)²/8= 5000 m²

and since √(L²- 8*A)=0

a=L/4 = 200m/4 = 50 m

b= L- 2*a = 200m - 2* 50m = 100 m

6 0
3 years ago
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