Answer:
142 cm^2
Step-by-step explanation:
2(L*H)+2(L*W)+2(W*H)=SA
7*3=21
21*2=42
7*5=35
35*2=70
5*3=15*2=30
30+70+42=142
So basically the fraction 1/6 is referring to the ratio of yards, where it represents 1 yard. 1/6 of 6 yards = 3 feet
Put it another way:
1/6 of 6 is 1. So that's 1 yard!
Answer:
$445.2
Step-by-step explanation:
If the sales tax is 6%, she is paying 106% of the original price. 6% of 420 is 25.2.
420+25.2 equals 445.2 $
Answer:
-9 1/4
Step-by-step explanation:
The values of the functions are f(4) = 47, f(k) = 2(k)^2 + 4(k) - 1 and f(x + h) = 2x^2 + 4hx + 2h^2 + 4x + 4h - 4
<h3>How to evaluate the expression?</h3>
The function is given as:
f(x) = 2x^2 + 4x - 1
To calculate f(4), we have:
f(4) = 2(4)^2 + 4(4) - 1
Evaluate the expression
f(4) = 47
To calculate f(k), we have:
f(k) = 2(k)^2 + 4(k) - 1
To calculate f(x + h), we have:
f(x + h) = 2(x + h)^2 + 4(x + h) - 1
Expand
f(x + h) = 2(x^2 + 2hx + h^2) + 4x + 4h - 4
Expand
f(x + h) = 2x^2 + 4hx + 2h^2 + 4x + 4h - 4
Read more about functions at:
brainly.com/question/4025726
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