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vagabundo [1.1K]

2 years ago

5

The temperature of a freezer started at 18ºC. After cooling for a few hours, the freezer had a temperature of –12ºC. What is the

difference between the new, colder temperature and the original temperature?

1 answer:

Llana [10]2 years ago

8 0

18* is 18 above 0. -12* is 12 below 0.
So add: 18+12=X. The difference in temperature is X :)

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3 years ago

Select all the ordered pairs that satisfy the function y = 3x + 5. A. (2, –1) A. , (2, –1) B. ( –3, –4) B. , ( –3, –4) C. ( 4, 1

Ne4ueva [31]

Answer:

B. ( –3, –4)

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Step-by-step explanation:

Function: y = 3x + 5

Using method of elimination

A. (2, –1)

x = 2, y = -1

-1 = 3 (2) + 5

-1 ≠ 11

This option is incorrect!

B. ( –3, –4)

x = -3, y = -4

-4 = 3 (-3) + 5

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This option is correct!

C. ( 4, 17 )

x = 4, y = 17

17 = 3 (4) + 5

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17 = 17

This option is correct!

D. ( 3, 8 )

x = 3, y = 8

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8 = 9 + 5

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This option is incorrect!

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3 years ago

Refer to the data above. What number represents the slope of the line, if the points on the graph above were joined?

Dmitrij [34]

Answer:

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Step-by-step explanation:

Calculate the slope m using the slope formula

m = $\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

with (x₁, y₁ ) = (2, 80) and (x₂, y₂ ) = (4, 160) ← 2 points on the line

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4 0

2 years ago