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3 years ago

The length of a rectangle is 4 in longer than its width. if the perimeter of the rectangle is 28 in , find its area.

Mathematics

1 answer:

ra1l [238]3 years ago

7 0

The area is 45 inches squared

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Can you please solve and explain how

Karolina [17]

First, it would help to simplify each side more:

Left side: 36 + 3(4x - 9) = 36 + 12x - 27 = 12x + 9

Right side: c(2x + 1) + 25 = 2cx + c + 25

Write the simplified equation:

12x + 9 = 2cx + c + 25

Usually when there is no solution, the coefficients of the variable on both sides are the same, so we can make the coefficient if x on the right side into 12:

2cx >>> 12x

Then, c must equal 6 to make this true.

The answer is choice (C).

6 0

3 years ago

Read 2 more answers

A circle has a circumference of 3.14 What is the diameter of the circle?

Sonbull [250]

3.82 is the answer for that but what is the unit of measurement

4 0

3 years ago

Calculate the length of the line segment. round your answer to the nearest tenth.

Sunny_sXe [5.5K]

Answer:

c) 8.6

Step-by-step explanation:

Take the coordinates of the two points.

(0,8) and (7,3)

Formula:

√(x₁ - x₂)² + (y₁ - y₂)²

Substitute:

√(0 - 7)² + (8 - 3)²

√(-7)² + (5)²

√(49) + (25)

√(74) ≈ 8.6

8 0

3 years ago

I need help with numbers 1-4 please if someone could help me

laila [671]

You can use the slope formula or just calculate
$\frac{rise}{run}$
So for the first problem you run 3 units right and rise 5 units so
$\frac{rise}{run} = \frac{5}{3}$
2. Notice the y axis goes by 2 units.
$\frac{ - 10}{4} = \frac{ - 5}{4}$
3.
$\frac{0}{12} = 0$
4.
$\frac{2}{0} = undefined$
Please let me know if you have questions

3 0

3 years ago

How many radians is -135°

Yuri [45]

Answer:

-3/4 pi radians

Step-by-step explanation:

180° is 1 pi radian

Hence, -135° = -135/180 pi radians

= -0.75 pi radians

= -3/4 pi radians

6 0

3 years ago