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Nadusha1986 [10]
2 years ago
12

Please give the best explanation that you can Thank you!

Mathematics
1 answer:
k0ka [10]2 years ago
8 0

Answer:

12

Step-by-step explanation:

you see that yb=2 and that zc is double yb so zc=4. adn if ay=6 that means double ay= 12 or 8+4=12

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there are 800 students at weaver middle school. to determine which mascot name is preferred by the students at the school, each
daser333 [38]

Answer:

This would not be an appropriate sampling technique because it is biased and it would not be fair for 60 students to choose a mascot for a school with 800 students.

Step-by-step explanation:

3 0
2 years ago
What is the simplified form of 3a^4b^-2c^3?
Simora [160]
<span>3a^4b^-2c^3
</span><span>     3a^4c^3
= --------------
         b^2</span>
7 0
3 years ago
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use an algebraic equation to solve the problem. the sides of a triangle are in the ratio 3:4:5. what is the length of each side
STatiana [176]
This should be the equation:

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3 years ago
3/4+(1/3÷1/6)-(-1/2)=?
Ugo [173]

Answer:

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Step-by-step explanation:

8 0
2 years ago
If you divide one of the roots of the equation 4x2+bx−27=0 by the other root, the quotient will be −3. Find b.
klio [65]
<h3>Answer:</h3>

  ±12   (two answers)

<h3>Explanation:</h3>

Suppose one root is <em>a</em>. Then the other root will be -3<em>a</em>. The product of the two roots is the ratio of the constant coefficient to the leading coefficient:

  (<em>a</em>)(-3<em>a</em>) = -27/4

  <em>a</em>² = -27/(4·(-3)) = 9/4

  <em>a</em> = ±√(9/4) = ±3/2

Then the other root is

  -3<em>a</em> = -3(±3/2) = ±9/2 . . . . . . the roots will have opposite signs

We know the opposite of the sum of these roots will be the ratio of the linear term coefficient to the leading coefficient: b/4, so ...

  -(a + (-3a)) = b/4

  2a = b/4

  b = 8a = 8·(±3/2)

  b = ±12

_____

<em>Check</em>

For b = 12, the equation factors as ...

  4x² +12x -27 = (2x -3)(2x +9) = 0

  It has roots -9/2 and +3/2, the ratio of which is -3.

For b = -12, the equation factors as ...

  4x² -12x -27 = (2x +3)(2x -9) = 0

  It has roots 9/2 and -3/2, the ratio of which is -3.

4 0
3 years ago
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