5j+s=t-2 solve for t
2 answers:
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We have to solve this quadratic equation for n to get <em>which figure has 56 blocks</em>.
For middle term factorization, we need <em>two numbers that multiplied gives us -56 and added gives us 1 (coefficient of n).</em>
<em>Such two numbers are </em><em>8</em><em> and </em><em>-7</em><em>. We can now write,</em>
<em></em>
<u><em>"There is no negative figure number possible, so we disregard -8"</em></u>
Our answer is 7.
ANSWER: The 7th figure has 56 blocks.
The correct option is (B). And
.
Given Equations,
We have to find out Which system of equations is equivalent to the Given system of Equations.
1). System of equation are,
taking - common and transposing to R.H.S we get,
This equation is not equal to equal (2), so the option (1) is not the system of equation equivalent to given Equations.
Similarly, on checking other options,
2. system of equation,
Taking -3 common from L.H.S. we get,
.
Hence the Above system of equation is equivalent to the given system of equation.
So, there is no need to check option (3) and option (4).
Hence the correct option is (B).
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I redrew the triangle (just turned it around it make it easier to understand).
