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Jet001 [13]
3 years ago
8

3/4(8x-4)=7x+2 This is a linear equation please help!

Mathematics
2 answers:
aleksandrvk [35]3 years ago
4 0

Simplify the left hand side by multiplying the terms in the parenthesis by 3/4, i.e. divide them by 4 and multiply them by 3:

\dfrac{3}{4}(8x-4)=7x+2 \iff 3(2x-1)=7x+2 \iff 6x-3 = 7x+2

Subtract 6x from both sides:

-3=x+2

Subtract 2 to both sides:

x=-5

mixas84 [53]3 years ago
3 0
Distribute 3/4 into the parentheses, set the equation equal to each other. subtract 7 from both sides of the x’s equation and then solve.
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Given that h(x) = 3x −19, find the value of x that makes h(x) = 71.
rosijanka [135]

Keywords:

<em>Equation, variable, value, clear </em>

For this case we have an equation with a variable of the form y = h (x). Where h (x) = 3x-19. Given the value ofh (x) = 71, we want to find the value of the variable "x". So, we have:

h (x) = 3x-19\\71 = 3x-19

We must clear "x", for this, we add "19" to both sides of the equation:

71 + 19 = 3x-19 + 19\\90 = 3x

We divide between "3" on both sides of the equation:

\frac {90} {3} = \frac {3x} {3}\\30 = x

Thus, the value of the variable "x" is 30.

Answer:

x = 30

Option A

6 0
3 years ago
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This is the last question need answered so please help me
shusha [124]
Assuming that is a square pyramid

that is the square base+4 triangles
that is
side^2+4(1/2bh)
where b=side=14in
and h=height=13in

surface area=14^2+4(1/2)(14)(13)
SA=196+(2)(182)
SA=196+364
SA=560 square inches
6 0
3 years ago
What is the domain of the following graph? Please don't put links down I cant download them.
rosijanka [135]

Answer:

-infinity, infinity

Step-by-step explanation:

Domain is x, and in a quadratic equation like this one the x axis goes on forever. So the first answer of -infinity, infinity is correct.

8 0
3 years ago
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PLSSS HELP. WILL MARK BRAINLIEST. A rectangle has sides measuring (6x + 4) units and (2x + 11) units. Part A: What is the expres
Leni [432]

Answer:

Below.

Step-by-step explanation:

Part A: (6x+4)(2x+11)=12x^2+66x+8x+44=12x^2+74x+44

Part B: Degree = 2, Classification = Quadratic

Part C: The polynomial is closed because it is multiplied. You CANNOT close under division.

4 0
3 years ago
If a parking lot holds 1,600 cars and fills 3/4 of its spaces, how many spaces are filled?
AnnyKZ [126]

The total space in the parking lot is 1600 cars

It is mentioned that \frac{3}{4} parts of this parking is filled

Now we are required to find what is the three-fourths part of 1600

To find it we multiply \frac{3}{4} times 1600

\frac{3}{4}  X 1600

= \frac{3X1600}{4}

=\frac{4800}{4}

= 1200 cars

Hence 1200 cars fills the three-fourths of the car parking lot that has a capacity of 1600 cars

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