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Simora [160]
3 years ago
11

How can you add the fractions 3/10 and 2/5? Explain

Mathematics
2 answers:
boyakko [2]3 years ago
6 0
Make them have the same denominator

3/10 + 4/10= 7/10

2/5 x 2 = 4/10
Vinvika [58]3 years ago
5 0
3/10+ 2/5
= 3/10+ 4/10 (common denominator is 10)
= 7/10

The final answer is 7/10~


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now, what is the piece-wise when x = 2? well, f(2) = x² or (2)² or 4

that means, the linear needs to hit it at that point, to make it so, let's make it the slope of the linear, the same as the quadratic's.

what's the quadratic's slope? well, simple enough

\bf \left. \cfrac{dy}{dx}=2x \right|_{x=2}\implies 4\impliedby \textit{this means }
\begin{array}{llll}
mx+b\\
\uparrow \\
4
\end{array}

so we have y = 4x + b

now, recall, for the quadratic, when x =2, y = 4, so for the linear, when x = 2, y = 4 as well, this means

\bf 4 = 4(2) + b\implies 4=8+b\implies 4-8=b\implies \boxed{-4=b}
\\\\\\
mx+b\implies 4x-4\\\\
-------------------------------\\\\
f(x)=
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x^2&x\le 2\\
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check the picture below.

4 0
3 years ago
Will someone please help me out I forgot how to do these
malfutka [58]

Answer:

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adelina 88 [10]

TU=13; UV= 13; TV=26

Step-by-step explanation:

Hope this helped!

6 0
3 years ago
Read 2 more answers
If a rectangle is 2 meters more than its width, and the area of it is 80 square meters, what is the length and width?
bezimeni [28]
Ok I think it means that the length l of the rectangle is 2 m more than is width w...
The area is A=l*w=(w+2)*w=80
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6 0
3 years ago
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