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WITCHER [35]
3 years ago
8

8. Over a period of 3 hours, the outside temperature changed an average of -2.25 Fahrenheit per hour. Which statement correctly

describes the change in the temperature from the beginning to the end of the 3 hour period?
a. The temperature decreased by 0.75 degrees Fahrenheit.

a. The temperature decreased by 0.75 degrees Fahrenheit.


b. The temperature increased by 0.75 degrees Fahrenheit.

b. The temperature increased by 0.75 degrees Fahrenheit.


c. The temperature decreased by 6.75 degrees Fahrenheit.

c. The temperature decreased by 6.75 degrees Fahrenheit.


d. The temperature increased by 6.75 degrees Fahrenheit.
Mathematics
1 answer:
ryzh [129]3 years ago
4 0

Answer:

c

Step-by-step explanation:

-2.25*3 = 6.75 decreased (since negative)

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Find the midsegment of triangle ABC so that it is parallel to side BC and label it as segment EG on the graph coordinate of E: _
Sholpan [36]

Answer:

Coordinate of E: (-2,3) Coordinate of G: (2.5, 1.5)

Step-by-step explanation:

You first have to find the midpoints of AC and AB.

AC X coordinate:

X1+X2/2

Substitute the x points of AC in

1+(-5)/2=-2

AC Y coordinate:

Y1+Y2/2=3

Substitute the y points of AC in

5+1/2=3

You do the same thing with the AB line. I am pretty sure this works and I hope this helps!




5 0
3 years ago
The points (–2, 4) and (–2, –2) are vertices of a heptagon. Explain how to find the length of the segment formed by these endpoi
Scrat [10]

Answer:

The segment is 6 units long.

Step-by-step explanation:

The points (–2, 4) and (–2, –2) are vertices of a heptagon. We have to explain how to find the length of the segment formed by these endpoints.

If two points at the ends of a straight line PQ are P(x_{1},y_{1}) and Q(x_{2},y_{2}), then the length of the segment PQ will be given by the formula  

\sqrt{(x_{1} - x_{2})^{2} + (y_{1} - y_{2})^{2}}

Now, in our case the two points are (-2,4) and (-2,-2) and the length of the segment will be  

\sqrt{(- 2 - (- 2))^{2} + (4 - (- 2))^{2}} = 6 units. (Answer)

5 0
4 years ago
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Completely factor the following expression t^2+4tv+4^2
VashaNatasha [74]
Here is all I got for you. From the starting expression to the simplest one.
t^2 + 4tv + 4^2 =
t^2 + 4tv + 16 = 
t(t + 4v) + 16

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3 years ago
L is the midpoint of line segment KM. If KL = 2x - 3 and LM = x + 7. find the value of x.
tatyana61 [14]

Answer:

x = 10

Step-by-step explanation:

Since L is the midpoint

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2x-3 = x+7

Subtract x from each side

2x-3-x = x+7-x

x-3 = 7

Add 3 to each side

x-3+3 = 7+3

x = 10

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