3 years ago

Is 14 a root of the equation 2x - 16 = - 44 ? Why or why not

Mathematics

1 answer:

vampirchik [111]3 years ago

4 0

Answer:

Step-by-step explanation:

If x = 14 is a root then substituting x = 14 into the equation should make both sides equal.

2(14) - 16 = 28 - 16 = 12 ≠ - 44

Thus x = 14 is not a root of the equation

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Answer:

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Step-by-step explanation:

Because these numbers aren't included in the solution.

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3 years ago

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Alex

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Find limit as x approaches 2 from the left of the quotient of the absolute value of the quantity x minus 2, and the quantity x m

Molodets [167]

Answer:

$\lim_{x \to 2^-} \frac{|x-2|}{x-2}=-1$ .

Step-by-step explanation:

We want to find $\lim_{x \to 2^-} \frac{|x-2|}{x-2}$ .

By definition:

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Since we want to find the Left Hand Limit, we use f(x)=-(x-2)

$\implies \lim_{x \to 2^-} \frac{|x-2|}{x-2}=\lim_{x \to 2} \frac{-(x-2)}{x-2}$ .

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3 years ago

the sum of 2 numbers is 49. Twice the smaller number is 97 less than 3 times the larger number. What are the numbers?

ivanzaharov [21]

Answer:

let the larger and smaller number be x and y respectively

first condition

x + y = 49

second condition

3x = 2y+97

3x-2y =97

Multiplying first condition by two and adding both equations

2x + 2y = 98

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x = 195/5 = 39

putting the value of x in

x + y = 49

y = 49 -39 = 10

again

Step-by-step explanation:

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3 years ago

The sales tax on a used car is $168168, and the sales tax rate is 55%. Find the purchase price (the price before taxes are

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Answer:

$92492.40

Step-by-step explanation:

168168.00 - 55% (75675.60)= $92492.40

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4 years ago