Answer to part A: 11w^2+7z^2
Answer to part B: 14w^2+9w
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Explanation:
For part A, the expression 4w^2+7w^2+7z^2 has one pair of like terms. That pair is 4w^2 and 7w^2 which combine to 11w^2. You add the coefficients to get 4+7 = 11, then tack w^2 onto everything to say 4w^2+7w^2 = 11w^2
We cannot combine 11w^2 and 7z^2 as they aren't like terms. So we leave it as 11w^2+7z^2
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In part B, the like terms are 15w and -9w. They combine to 15w-9w = 6w. You can think of it like 15-9 = 6 then stick a 'w' to each term. We cannot combine the w^2 term with the w terms.
Answer:
the addition property of equality
Step-by-step explanation:E
Square root of 156 is 12.5 which is not a whole number. Square root of 169 is 13. So It is a perfect square.
<em>Where's the figure?</em>
<em>∝</em><em> Sidhdi</em>
Answer:
Wavelength of blue light in air is 4860 A.U and in water 3654 A.U. If the wavelength of the yellow light in air is 5890 A.U, determine its wavelength in water.