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Viefleur [7K]
3 years ago
13

Factor the expression x^{2} +4x-21

Mathematics
1 answer:
Nuetrik [128]3 years ago
3 0

Answer:

This factors out to: (x + 7)(x - 3)

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2(vh)/k=r Solve equation for v in terms of all other variables involved
aivan3 [116]

The equation v in terms of other variables is v = kr/2h

<h3>What is the subject of an equation?</h3>

It is a variable which is expressed in terms of other variables involved in the formula.

Formulas are written so that a single variable, the subject of the formula is on the L.H.S. of the equation. Everything else goes on the right side of the equation. We evaluate the formula by substituting for the literal numbers on the right hand side.

2(vh) / k = r

by cross multiplication

2(vh) = kr

divide both sides by 2h

v = kr/2h

In conclusion, v in terms of other variables is  kr/2h

Learn more about subject of an equation: brainly.com/question/657646

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6 0
2 years ago
Why shouldn’t you expect to take a year to pay off a credit card charge?
inessss [21]
Depending on interest it could be doubled if not more.
5 0
3 years ago
What is 24-(-6) because in confused
Natasha2012 [34]

Answer:

30

Step-by-step explanation:

24 - (-6)

Apply rule : -(-a) = a

Negative (-) times a negative (-) is positive (+).

24 + 6

= 30

7 0
3 years ago
Read 2 more answers
Triangle ABC has vertices of A(-6, 7), B (4, -1), and C (-2, -9). What is the length of the median from angle B?
jeka94
Coordinates of the midpoint of AC:
M ( (-6-2) / 2) , ( 7-9 ) /2 ) = ( -4, -1 )
d ( BM ) = √ ( 4 + 4 )² + ( -1+ 1 )²
d ( BM ) =   √  8 ²  =√ 64 = 8
The length of the median from angle B is 8.
6 0
3 years ago
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Divide x ^ 4 + x - 1 by x - 1
vladimir2022 [97]

The required, divide is given by =x^3+x^2+x+2+\frac{1}{x-1}

<h3>What is fraction of polynomial?</h3>

Fraction of polynomial is, in the numerator and in the denominator of a fraction there is polynomial function

=x^3+\frac{x^3+x-1}{x-1}\\

=x^3+x^2+\frac{x^2+x-1}{x-1}\\

=x^3+x^2+x+\frac{2x-1}{x-1}\\

=x^3+x^2+x+2+\frac{1}{x-1}

Thus the required, divide is =x^3+x^2+x+2+\frac{1}{x-1}.

Learn more about Fraction of polynomial here:
brainly.com/question/9686817

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6 0
2 years ago
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