C - remember the vertical line test determines if something is a function. A function has 1 x value for 1 y value. A B and D have more than one y value for a given x value.

7 0

3 years ago

What is the product (3 x 10^9) x (2 x 10^17) in scientific notation?

Nastasia [14]

3*2= 6 and 10^9*10^17=10^26 so the answer is 6*10^26

7 0

3 years ago

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2x^2 + 3x - 12 when x = 5 help pls

cluponka [151]

$\huge\textsf{Hey there!}$

$\mathsf{2x^2 + 3x - 12}$

$\mathsf{= 2(5)^2 + 3(5) - 12}$

$\mathsf{5^2}$

$\mathsf{= 5 \times 5}$

$\mathsf{\bf = 25}$

$\mathsf{2(25) + 3(5) - 12}$

$\mathsf{2(25)}$

$\mathsf{= \bf 50}$

$\mathsf{3(5)}$

$\mathsf{= \bf 15}$

$\mathsf{= 50 + 15 - 12}$

$\mathsf{50 + 15}$

$\mathsf{= \bf 65}$

65 - 12

$\mathsf{= \bf 53}$

$\boxed{\boxed{\huge\textsf{Answer: \bf 53}}}\huge\checkmark$

$\large\textsf{Good luck on your assignment and enjoy your day!}$

~ $\frak{Amphitrite1040:)}$

5 0

3 years ago

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The electricity to run a refrigerator for a week costs $6.30. How much does it cost to run the refrigerator for 365 days?

elena-14-01-66 [18.8K]

Answer: 327.60 dollars

Explanation:

There are about 52 weeks in a year (note that 365/7 = 52.14)

So that means it costs a total of 52*6.30 = 327.60 dollars to run the fridge for a full year.

3 0

3 years ago

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