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aleksklad [387]
3 years ago
13

Factor completely 2. 4x² – 9 [2 pts]

Mathematics
1 answer:
Nat2105 [25]3 years ago
8 0

Answer:

(2x+3) (2x-3)

Step-by-step explanation:

Both 4 and 9 have square roots and the problem is a difference of two squares. So if factored, one parenthesis will have a - and the other will have a +.

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34% of 29.5 is what number
ira [324]
It would be: 29.5*34/100 = 1003/100 = 10.03
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3 years ago
The solution to the system -2x+5y=-15 and 5x+2y=-6 is what
cupoosta [38]

Step-by-step explanation:

−2x+5y=−15 and 5x+2y=−6

Rewrite equations:

−2x+5y=−15;5x+2y=−6

Step: Solve−2x+5y=−15for x:

−2x+5y=−15

−2x+5y+−5y=−15+−5y(Add -5y to both sides)

−2x=−5y−15

−2x−2=−5y−15−2(Divide both sides by -2)

x=52y+152

Step: Substitute52y+152forxin5x+2y=−6:

5x+2y=−6

5(52y+152)+2y=−6

292y+752=−6(Simplify both sides of the equation)

292y+752+−752=−6+−752(Add (-75)/2 to both sides)

292y=−872

292y292=−872292(Divide both sides by 29/2)

y=−3

Step: Substitute−3foryinx=52y+152:

x=52y+152

x=52(−3)+152

x=0(Simplify both sides of the equation)

Answer:

x=0 and y=−3

8 0
3 years ago
Find m <br> A. 40°<br> B. 80°<br> C. 130°<br> D. 260°
alekssr [168]
The answer to this is A. 40
3 0
3 years ago
Read 2 more answers
I NEED SOMEONE TO HELP ASAP: I just need someone to classify all of these things
Sergio039 [100]
Integer, natural, whole, rational, irrational, natural (15/3=5), integer (-12/6=-2), rational, irrational, rational, rational

Natural-the counting numbers (1,2,3,100...)
Whole-all natural AND 0
Integers-add negative numbers (no fractions)
Rational-add fractions and decimals
Irrational-numbers that can’t be a fraction (square root of 3, pi)
Real-all numbers
7 0
3 years ago
the polynomial 3x+5 is divided by x+2 what is the quotient, pls be quick im taking a algebra progress check due in 25 min
il63 [147K]

Answer:

The quotient of the rational function is 3 -\frac{1}{x+2}.

Step-by-step explanation:

We proceed to solve the expression by solely algebraic means below:

1) \frac{3\cdot x + 5}{x+2} Given

2) \frac{(3\cdot x + 5) + 0}{x + 2} Modulative property

3) \frac{(3\cdot x +5) + [1+(-1)]}{x+2} Existence of additive inverse/Associative property

4) \frac{(3\cdot x + 6)+(-1)}{x+2} Definition of addition/Commutative and associative properties

5) \frac{3\cdot (x+2)}{x+2} + \left(-\frac{1}{x+2} \right)   \frac{a+b}{c} = \frac{a}{c} + \frac{b}{c}/ \frac{-a}{b} = \frac{a}{-b} = -\frac{a}{b}/Distributive property

6) 3 -\frac{1}{x+2} Definition of division/Existence of multiplicative inverse/Modulative property/Definition of subtraction/Result

The quotient of the rational function is 3 -\frac{1}{x+2}.

5 0
3 years ago
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