3. 20, 16, 20, 17.5, 19.5, 18, 23
4. 21, 20, 24, 22, 22, 22, 16
5. 100, 90, 72, 95, 85, 83, 89, 81, 86, 93, 98
6. 4, 3, 1, 1, 2, 2, 3, 3, 2
To find the mean, you add up all the numbers and divide by the number of terms in the set. So...
3. (20+16+20+17.5+19.5+18+23) / 7 = 134 / 7 = about 19.14285714 or 19 and 1/7
4. (21+20+24+22+22+22+16) / 7 = 147 / 7 = 21
5. (100+90+72+95+85+83+89+81+86+93+98) / 11 = 972 / 11 = about 88.363636... or 88 and 4/11
6. (4+3+1+1+2+2+3+3+2) / 9 = 21 / 9 =2 .333... or 2 and 1/3
You cannot evaluate for (g o f)(0). You will get an undefined answer.
(g o f)(x) tells you to plug in the f(x) function for the x-variable in the g(x) equation; so it would be like saying g(f(x)). This would result in (g o f)(x) = (1/x) - 4. Now plug in 0, (g o f)(0) = 1/0 - 4. One cannot divide by zero in order to simplify the equation and get an answer... unless an undefined answer counts, which I'm pretty sure it doesn't.
The value of the given expression is 20.
An expression in math is a sentence with a minimum of two numbers or variables and at least one math operation. This math operation can be addition, subtraction, multiplication, or division.
Given that, h=4 and j=6 we need to find hj-h
hj-h
put h=4 and j=6
4 x 6 - 4
= 24 - 4
= 20
Hence, the required value is 20.
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Answer:
C) 5
Step-by-step explanation:
The expression is correct because changing the place in the multiplication operation does not affect the final result.
An equation is a statement that two expressions, which include variables and/or numbers, are equal. In essence, equations are questions, and efforts to systematically find solutions to these questions have been the driving forces behind the creation of mathematics.
It is given that,the equation is 1.8 x 3) x 2.1 = 3 x (1.8 x 2.1) t
L.H.S
=(1.8×3)×2.1
=5.4×2.1
=11.34
R.H.S.
=3 x (1.8 x 2.1)
=3×3.78
=11.34
L.H.S.=R.H.S.
Thus, the expression is correct because changing the place in the multiplication operation does not affect the final result.
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