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pentagon [3]
3 years ago
10

(2x^3+4x^2-3)+(6x^3+4x-4)​

Mathematics
2 answers:
sukhopar [10]3 years ago
8 0

Answer:

8x^3 + 4x^2 + 4x -7

Step-by-step explanation:

Add like terms.

zepelin [54]3 years ago
3 0

Answer: everything is explained in the picture

Step-by-step explanation:

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A number w added to 2.3 is more than 18
DanielleElmas [232]
2.3 + w > 18
-2.3 -2.3
w > 15.7
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3 years ago
Solve for x, give exact answers: 6x^2 - 7x - 3 = 0
Novosadov [1.4K]

Answer:

Step-by-step explanation:

6x∧2-7x-3=0

the coefficient of x² multiplied by -3 = -18

we need to look for 2 numbers that when we add it to together it will equate to -7x

+2 and -9 is the answer

6x∧2+2x-9x-3=0

2x(3x+1)-3(3x+1)=0

(2x-3)(3x+1)=0

equate each brackets to 0

2x-3=0   3x+1=0

2x=3        3x=-1

x=3/2         x=-1/3

4 0
3 years ago
Read 2 more answers
What is the equation of the line that passes through the point (3, 4) and has a slope<br> of - 2/3?
fgiga [73]

Answer: y= - 2/3x+6

Step-by-step explanation:

Just plug in values into this equation (slope intercept form)

y=mx+b

3 is x value

4 is y value

m is the slope which is - 2/3

So after you plug in the values, solve for b ("b" is the y intercept):

4=-2/3(3)+b

4=-2+b

b=6

Then add in the b value into your equation and you will get y= - 2/3x+6

8 0
2 years ago
Whats 1/2 + 8 9/14 please help ASAP
LenaWriter [7]

Answer: 9 /17 as fraction 9.143 Simplify

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Scan domain, range and graph of the following functions:
FinnZ [79.3K]
Sorry can't include the graphs, just subsitute y for f(x) and graph by subsituting values


so domain is the set of numbers you are allowed to use
range is the set of number you get from inputing the numbers from the domain into the function


so normally the domain is all real numbers
you must exclude number from the domain that make mathematical  undifined impossible stuff exg dividing by zero so
not sure about the ranges so I will leave that out


a. denomenator is x-2
cannot be zero
x-2=0
add 2
x=2

domain: all real numbers except for 2




b. x+2=deomenator
x+2=0
subtract 2
x=-2
x acannot be -2

domain: all real numbers except for -2

c
x cannot be 0
domain: all real numbers except for 0


d. x cannot be -1
domain: all real numbers except for -1


e: x cannot be a negative number or 0
domain: all real numbers greater than zero


f: x cannnot be -2
domain: al real numbers except -2

g: x cannot be 0
domain: all real number except 0

h: x cannot be zero
domain: all real numbers except 0

i: x cannot be 1
doman: all real number except 1

j: 5x-2=0
add 2
5x=2
divide 5
x=2/5

x cannot be 2/5
domain: all real numbers except for 2/5


5 0
3 years ago
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