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ELEN [110]
2 years ago
6

Given the function f(x) = 2x – evaluate f (4). Enter your answer as a decimal.

Mathematics
1 answer:
Nataly_w [17]2 years ago
7 0

Step-by-step explanation:

F(x)=2x

but x= 4

F(x)= 2(4)

F(x)= 8

1/8 is same as 8

0.125

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A carpenter purchased 70ft of redwood and 70ft of pine for a total cost of $282. A second purchase, at the same prices, included
dedylja [7]
I think the answer is $2.01 per 1ft of redwood and pine

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7 0
3 years ago
Lucy wants to be exempt from her semester exam. In order for that to happen, she has to average an 85 over 3 test grades. Her fi
anastassius [24]

Answer:

<em>Grades to be scored in 3rd exam = 88</em>

Step-by-step explanation:

Given that average of 3 numbers is 85.

First two numbers are 81 and 86.

To find:

3rd number so that average is 85

Solution:

Let the third number = x

Formula for average is:

Average = \dfrac{Sum\ of\ numbers}{Total\ count\ of\ numbers}

Here, sum of numbers = 81+86+x =167+x

Total count of numbers = 3

85 = \dfrac{167+x}{3}\\\Rightarrow x=255-167\\\Rightarrow \bold{x=88}

<em>Grades to be scored in 3rd exam = 88</em>

8 0
3 years ago
What is the solution to the equation?
Charra [1.4K]

through my calculations x=8

7 0
3 years ago
Read 2 more answers
Adult tickets to the fall play cost $8 and student tickets cost $4. The drama class sold 30 more adult tickets than student tick
nignag [31]
The class sold 80 adult tickets.<span />
8 0
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What is the Common Difference for the following sequence? 2 /3 , 1 /3 ,0,− 1/ 3 , -2/ 3 ,⋯,
allsm [11]
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In short, Your Answer would be -1/3

Hope this helps!
8 0
3 years ago
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