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antiseptic1488 [7]
3 years ago
10

Please help???

Mathematics
1 answer:
Makovka662 [10]3 years ago
6 0
Radicals are simplified because they take precedence. They take precedence just like exponents, which radicals can be written as exponents. For example 
\sqrt[3]{27} = 27^{\frac{1}{3}}

Also, to add and subtract them you need to have both terms the same so that is another reason why we simplify first. If you did not simplify, the answer would not be the same and come out wrong. For instance
\sqrt{27} = 3\sqrt{3}
3\sqrt{3} + \sqrt{3} = 4\sqrt{3}
Now if you try and add without like terms(radicals) the answer would be incorrect.
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Look at the picture for the question<br> Please answer
Anvisha [2.4K]

Answer:

\large\boxed{D.\ 12x^2-29x+14}

Step-by-step explanation:

Use FOIL: <em>(a + b)(c + d) = ac + ad + bc + bd</em>

(3x-2)(4x-7)=(3x)(4x)+(3x)(-7)+(-2)(4x)+(-2)(-7)\\\\=12x^2-21x-8x+14\qquad\qquad\text{combine like terms}\\\\=12x^2+(-21x-8x)+14=12x^2-29x+14

7 0
3 years ago
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umka2103 [35]

Answer:

y=2x+7

Step-by-step explanation:

If you plug in the x and y values, they are correct.

3 0
2 years ago
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The square root of 7 lies between what two numbers
ExtremeBDS [4]

The square root of 7 would like between 2 and 3. This is because 2 x 2 is 4's square root and 3 x 3 is nine's square root. Seven is between four and nine.

4 0
2 years ago
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Doug collects baseball and football cards. He has 5 baseball cards in his collection for every 4 football cards. If Doug has 68
Andrej [43]
Answer: 85 baseball cards
Explanation: If Doug has 5 baseball cards for every four football cards, that means he has 125%, or 1.25x as many baseball cards as basketball cards at any given moment. If he has 68, we can multiply 68 by 1.25 and get 85 baseball cards
3 0
2 years ago
What number is 60% of 85
ZanzabumX [31]
If you would to solve 60% of 85 is what number, you can calculate this using the following steps:

60% of 85 is x
60% * 85 = x
x = 60% * 85 = 60/100 * 85 = 51

Result: 60% of 85 is 51.
8 0
2 years ago
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