Answer:
Yes
Step-by-step explanation:
The answer is: [C]:
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"The graph of the function touches the x-axis at x = 3."
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Explanation:
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Write the function as the following equation:
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x² − 6x + 9 = 0 .
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Factor the "left hand side of the equation":
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(x −3) (x − 3) = 0 .
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→ Solution: x = 3 (when y = 0).
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The answer is: [C]:
________________________________________
"The graph of the function touches the x-axis at x = 3."
_____________________________________________________
He saved $3.30 in all.
Step-by-step explanation:
Let,
Number of nickels = x
Number of dimes = y
According to given statement;
Jeff saved 33 more nickels than dimes.
x = y+33 Eqn 1
He had 4 times as many nickels as dimes.
x = 4y Eqn 2
Putting value of x from Eqn 2 in Eqn 1
Dividing both sides by 3
Putting y=11 in Eqn 2
Therefore,
Total coins = 44 nickels + 11 dimes
We know that;
1 nickel = 5 cents
1 dime = 10 cents
Total coins worth = 44*5 + 11*10 = 220+110 = 330 cents
Dividing by 100 to convert into dollars
He saved $3.30 in all.
Keywords: linear equation, addition
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550-(120+100)=330
330/3=110
£110