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Aneli [31]
2 years ago
8

Pleaseeee helppp meee

Mathematics
1 answer:
Marysya12 [62]2 years ago
6 0
5) To find the answer we can set up a proportion (see image 1), then solve for x. 5 x 1000/100 = x
x = 50
The answer is 50. :)

7) Set up another proportion (see image 2), then solve for x again. 
100 x 100/25 = x
x = 400

Hope this helps! :)

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Answer:

120

Step-by-step explanation:

All the angles should add up to equal 180 so,

28 + 32 + ? = 180

60 + ? = 180

180 - 60 = 120

7 0
3 years ago
The mean is defined as a
OverLord2011 [107]
All the numbers added up then divided by the amount of numbers.

EX: 5 + 10 + 3 + 8 + 9
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salantis [7]

I would not normally stop to answer this question, mainly because
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I do have to stop here and leave a remark, however. 

Math and Physics are closely enough related that I would not
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A rainbow is always a part of a circle.
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6 0
3 years ago
Read 2 more answers
Write an equation in standard form of the hyperbola described.
marishachu [46]

Check the picture below, so the hyperbola looks more or less like so, so let's find the length of the conjugate axis, or namely let's find the "b" component.

\textit{hyperbolas, horizontal traverse axis } \\\\ \cfrac{(x- h)^2}{ a^2}-\cfrac{(y- k)^2}{ b^2}=1 \qquad \begin{cases} center\ ( h, k)\\ vertices\ ( h\pm a, k)\\ c=\textit{distance from}\\ \qquad \textit{center to foci}\\ \qquad \sqrt{ a ^2 + b ^2} \end{cases} \\\\[-0.35em] ~\dotfill

\begin{cases} h=0\\ k=0\\ a=2\\ c=4 \end{cases}\implies \cfrac{(x-0)^2}{2^2}-\cfrac{(y-0)^2}{b^2} \\\\\\ c^2=a^2+b^2\implies 4^2=2^2+b^2\implies 16=4+b^2\implies \underline{12=b^2} \\\\\\ \cfrac{(x-0)^2}{2^2}-\cfrac{(y-0)^2}{12}\implies \boxed{\cfrac{x^2}{4}-\cfrac{y^2}{12}}

5 0
2 years ago
What fraction of each gallon of purple paint is red
mixas84 [53]

Answer:

4/7 of purple paint is red paint.

Step-by-step explanation:

4 0
3 years ago
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