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swat32
3 years ago
9

On a certain day, the temperature changed at a rate of 3°F per hour. How long did it take for the change in temperature to be -3

3°F?
​
Mathematics
1 answer:
mamaluj [8]3 years ago
7 0

Answer:

I think 11 hours.

Step-by-step explanation:

If I know starting temp such as 0 degrees then I can say that it would take 11 hours as 11*3 = 33. If it is 3 degrees, then it would 3*12 = 36 degrees.

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The measure of an exterior angle of a regular polygon is 45. What is the interior angle and how many sides?
Brilliant_brown [7]

Check the picture below.

\bf \textit{sum of all exterior angles in a polygon}\\\\ n\theta = 360~~ \begin{cases} n=\stackrel{number~of}{sides}\\ \theta =angle~in\\ \qquad degrees\\[-0.5em] \hrulefill\\ 0=45 \end{cases}\implies n(45)=360\implies n=\cfrac{360}{45}\implies \stackrel{\textit{an octagon}}{n=8}

3 0
3 years ago
Please select the word from the list that best fits the definition
Ann [662]

Answer:

-line graph

Step-by-step explanation:

We are going to take the definition of all the terms and then deduced our correct answer.

<u>Pictograph</u> : Pictograph also known as pictogram uses picture to represent data.

<u>Pie graph</u>: It is a chat that uses pie slices to represent relative size of data.

<u><em>Line graph:</em></u> A line graph is a graph with points connected by lines to show changes in value  over time.

<u>Bar graph</u>: A bar graph uses rectangular box known as bars to represent data, it is relatively used to show size

<u>Double bar graph</u> : A double bar graph uses two bars beside each other two represent data. It can be used to compare two data groups.

From the above definition, we can deduced that the word that shows data over time is the line graph  

6 0
3 years ago
Please help me wiyh this<br> In triangle △WXY, XY ≅ WX and m∠X=38 Find m∠W
noname [10]
A because fhmwtjstney egg scbwfjrw eyed tenet her
6 0
3 years ago
Help me with this question!
Damm [24]

Answer:

it will cost him £2.38

Step-by-step explanation:

bc you first multiply 4.25kg with £1.40 and that equals to 5.95

then you take 5.95 and devide it with 2.5 kg then that equals to £2.38.

I hope that this helped you.

8 0
3 years ago
How many solutions does the equation x_1 +x_2+x_3+x_4+x_5=21 have where x_1, x_2, x_3, x_4, and x_5 are nonnegative integers and
omeli [17]

Step-by-step explanation:

x_{1} + x_{2} + x_{3} + x_{4} + x_{5} = 21\\     (given)

Let us consider :

x_{1} = t_{1} + 1

x_{2} = t_{2}

x_{3} = t_{3}

x_{4}  = t_{4}

x_{5} = t_{5}

Now, by substituting the above considerations in the above equation, we get:

t_{1} + 1 + t_{2} + t_{3} + t_{4} + t_{5} = 21\\

t_{1}  + t_{2} + t_{3} + t_{4} + t_{5} = 20\\

where,

t_{i} \geq 1

then it follows

n = 20

r = 4

then no. of solutions for the eqn = _{r}^{n + r}\textrm{C}

                                                      = _{4}^{24}\textrm{C}

                                                      = 10626

Answer :

no. of solutions for the eqn 10626

4 0
3 years ago
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