Answer:
C
Step-by-step explanation:
To evaluate f(g(7)), substitute x = 7 into g(x), then substitute the result into f(x)
g(7) = (2 × 7) - 5 = 14 - 5 = 9, then
f(9) = 3(9)² - 4 = 243 - 4 = 239 → C
Answer:
x=3
Step-by-step explanation:
2x + 1 = 3x - 2
2x +3 = 3x
2x-3x= -1x
-1x = -3/-1
x=3
Answer:
358 inches^2
Step-by-step explanation:
SA = 2(lw + lh + wh)
SA = 2 (12*7 + 12*5 + 7*5)
SA = 358
Hope this is helpful !!!!!
The cross products of the proportion are equal.
According to the question, Sonny's equation can be written as follows.
16/x = 48/15
Now, the variable x is replaced by the constant 5. So the equation can now be written as follows.
16/5 = 48/15
When two fractions are equal to one another as shown above, the constants are cross multiplied with one another in order to form an equation.
16*15= 48*5
The values of both the products are equal which is 240.
Therefore, because the cross products of the proportion are equal.
Learn more about Proportion on:
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