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liberstina [14]
3 years ago
7

The perimeter of a rectangle is 18cm- if the

Mathematics
1 answer:
Sergio [31]3 years ago
7 0

Step-by-step explanation:

perimeter=2(l+b)

18=2[(x+2)+x]

18=2(x+x+2)

18=2(2x+2)

18=4x+4

collecting like terms

18+4=4x

22=4x

dividing by 4

22/4=x

5²/4=5½

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Factor by grouping.<br> 5w+2w + 25w + 10
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Answer:

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Step-by-step explanation:

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What is the equation of the line that is perpendicular to y= -3x + 1 and passes through (2,3)?
Aleonysh [2.5K]

Answer:

\large\boxed{y=\dfrac{1}{3}x+2\dfrac{1}{3}}

Step-by-step explanation:

\text{Let}\ k:y=_1x+b_1\ \text{and}\ l:y=m_2x+b_2.\\\\l\ \perp\ k\iff m_1m_2=-1\to m_2=-\dfrac{1}{m_1}\\============================\\\\\text{We have}\ y=-3x+1\to m_1=-3.\\\\\text{Therefore}\ m_2=-\dfrac{1}{-3}=\dfrac{1}{3}.\\\\\text{The equation of the searched line:}\ y=\dfrac{1}{3}x+b.\\\\\text{The line passes through }(2,\ 3).

\text{Put the coordinates of the point to the equation.}\ x=2,\ y=3:\\\\3=\dfrac{1}{3}(2)+b\\\\3=\dfrac{2}{3}+b\qquad\text{subtract}\ \dfrac{2}{3}\ \text{from both sides}\\\\b=2\dfrac{1}{3}

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3 years ago
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Answer the question to become brainliest
marishachu [46]

Answer:

2406.17 cm³

Step-by-step explanation:

The following data were obtained from the question:

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Next, we shall determine the base area of the pyramid. This can be obtained as follow:

Base length (L) = 17.2 cm

Base area (B) =.?

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Finally, we shall determine the volume of the pyramid. This can be obtained as follow:

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3 years ago
Need help, Due ASAP!
VMariaS [17]

Stop posting on here and do the work yourself I usually don't mind helping people but in some cases, I need to just say do it by yourself look at notes look up the answer there are a million things you can do instead of spam posting all your questions good day

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