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lions [1.4K]
3 years ago
11

What is the value of X

Mathematics
1 answer:
Alex777 [14]3 years ago
3 0

Answer: x= -5

Step-by-step explanation:

  1. Combine like terms: 7/2x and 1/2x are like terms--> adding them we get 8/2x or 4x
  2. Isolate x by subtracting 9/2x from the other side, getting us -1/2x= 2 1/2
  3. Multiply by -2 to get x= -5

These steps are the same for solving all equations with one variable.

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Someone please help me
Phoenix [80]

Answer: 120, 60, 180

Step-by-step explanation:

1) Area of a rectangle's formula is:

l × w

So, looking at the diagram, we get:

6 × 20 = 120 cm²

2) Area of a trapezoid's formula is:

\frac{a+b}{2} × h (where both a and b are the different base lengths)

So, looking at the diagram, we get:

\frac{10+20}{2} × 4 = 60 cm²

3) Add both to find the area of the entire figure.

120 + 60 = 180 cm²

8 0
3 years ago
Find the equation of the line use exact numbers
mart [117]

Answer:

y = -³/2x + 3

Step-by-step explanation:

To find the equation of the line in slope-intercept form, y = mx + b, we need to finder the slope (m) and the y-intercept (b).

✔️Slope (m) = ∆y/∆x

Using two points on the line, (0, 3) and (2, 0),

Slope = (0 - 3)/(2 - 0) = -3/2

Slope (m) = -³/2

✔️y-intercept (b) = 3 (this is the y-cooordinate of the point where the line intercepts the y-axis)

✔️To write the equation, substitute m = -³/2 and b = 3 into y = mx + b

This:

y = -³/2x + 3

4 0
3 years ago
Please Helppp!!! It was due Yesterday
Rom4ik [11]

Answer:

I really can't help ya

Step-by-step explanation:

Is to do your research

7 0
4 years ago
A circle has an area of 113 square centimeters. What is the radius of the circle?
Agata [3.3K]

So, first you want to have 113 then you are going to want to divide it by pi or 3.14. After that, square it.

Your answer would be 6

8 0
3 years ago
Tiyana is saving for a vacation. She wants to have at least $75 for
ankoles [38]

Answer:

no she will be at 70.8

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7 0
3 years ago
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