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3 years ago

At 6:00 A.M the temperature was 25 F.At 9:00 P.M the temperature was -13F,What was the difference in the temperature?

Mathematics

2 answers:

Alex73 [517]3 years ago

5 0

The difference is 38 degrees

rjkz [21]3 years ago

3 0

Yeah I got 38 degrees

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Malia is placing a barrier around the edge of a circular path with a diameter of 13 meters. The barriers are in lengths of 2.5 m

Bezzdna [24]

Answer:

B. 17

Step-by-step explanation:

We have been given that Maria is placing a barrier around the edge of a circular path with a diameter of 13 meters.

Since we know that circumference of a circle equals $2\pi r$ , where,

r= Radius of the circle.

Since we have been given the diameter of the circular path, so let us divide our given diameter by 2 to find radius of our circular path.

$\text{Radius of circular path}=\frac{13}{2}=6.5$

Let us find the circumference of our circular path.

$\text{Circumference of circular path}=2*3.14*6.5$

$\text{Circumference of circular path}=40.82$

Since circumference of circular path is 40.82 meters, so to find the number of pieces of barrier we will divide circumference of circular path by length of each barrier.

$\text{Number of barriers used}=\frac{40.82}{2.5}$

$\text{Number of barriers used}=16.328$

As the barrier will be used as a whole piece, therefore, Malia needs 17 pieces of barrier and option B is the correct choice.

3 0

2 years ago

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A stock valued at $100 decreases in value by 9.5% each year? What is the function?

Lynna [10]

Answer:

the function is y= 100-0.095x

Step-by-step explanation:

Step one:

given data

A stock valued at $100 decreases in value by 9.5%

let the number of years be x

Step two:

Hence, the rate of decrease is 0.095

therefore the function is

y= 100-0.095x

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2 years ago

Find the distance between the points (0,-8) and (8,-3). The answer must be a whole number or a fully simplified radical expressi

BigorU [14]

Answer:

The distance in radical expression form is d= $\sqrt{89}$

Step-by-step explanation:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\d=\sqrt{(8-0)^2+(-3-(-8))^2}\\d=\sqrt{(8)^2+(5)^2}\\d=\sqrt{(64)+(25)}\\d=\sqrt{89}\\$

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2 years ago

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2 years ago

What is 412,639 rounded to the nearest thousand

MariettaO [177]

Answer:

413,000

Step-by-step explanation:

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