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MissTica
3 years ago
5

Regina graphs the relationship between temperature(in C) and elevation (in m) in 9 different cities.

Mathematics
1 answer:
Black_prince [1.1K]3 years ago
4 0

Answer:

-6,5

Step-by-step explanation:

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How to find median with even amount of numbers?
Paladinen [302]
Sort the numbers in ascending or descending order, then eliminate the greatest and least numbers until you're left with the middle two. The median is the average of the last two numbers.

For example, the median for the set \{2,10,-1,4\}=\{-1,2,4,10\} is 3 because the middle two numbers are 2 and 4, and their average is \dfrac{2+4}2=3.
8 0
3 years ago
Solve the equation without the use of a calculator. please Help!!! Thank you!!!<br> 12x^3-30x=5-2x^2
nata0808 [166]

So, since we have a cubic equation with 4 terms, the first thing we should try is factoring by grouping, so:

12x^3+2x^2-30x+5 =0 \implies \\ 2x^2(6x+1)-5(6x+1)=0 \implies \\ (2x^2-5)(6x+1) = 0

Now that we've factored our equation, we can use ZPP and break it up:

2x^2-5 = 0 \implies \\ 2x^2=5 \implies\\ x^2=\frac{5}{2} \implies\\ x=\pm\frac{\sqrt{5}}{\sqrt{2}}=\pm\frac{\sqrt{10}}{2} \\ \\ 6x+1 =0 \implies \\ 6x=-1 \implies\\ x=\frac{-1}{6}

So, our solutions are:

x\in \{\frac{\sqrt{10}}{2},-\frac{\sqrt{10}}{2},-\frac{1}{6}\}

4 0
3 years ago
I dont know what a complementary angle is, can someone help me with this quistion please?
Allisa [31]

Answer:

A, complementary angles sum up to 90°

8 0
3 years ago
Sketch the graph of a function f for which f(0)=0,f'(0)=3,f'(1)=0, and f'(2)= -1
vichka [17]
I think you have to sketch the graph
8 0
3 years ago
Maths question trigonometry help pleassssee
r-ruslan [8.4K]

Answer:

x=4.5

Step-by-step explanation:

Using sohcahtoa we know tangent is equal to (length of side opposite to the angle ) / (lenth of side adjacent to the angle)

therefore: tan (theta) = (x-3) / (x) = 1 / 3

now cross multiply

3(x-3) = x

now solve for x

3x - 9 = x

-9= -2x

x= 4.5

7 0
2 years ago
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