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mart [117]
3 years ago
12

The length of a rectangle is 5 yd less than three times the width, and the area of the rectangle is 28 yd2 . find the dimensions

of the rectangle.
Mathematics
1 answer:
Firdavs [7]3 years ago
8 0
The answer is 4.

The formula for the area of a rectangle is A = lw. Substitute, so then it's 28 = (3x-5) * x, and you evaluate.

Hope this helps you! And rate so I can see if I did well!
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Which of the following equations best describes a square root function that is reflected across the x-axis and has a vertex of (
Minchanka [31]

Answer:

C

Step-by-step explanation:

Rather than picking, let's try to construct one from the description.

reflected over the x axis means -\sqrt{x}

the vertex is usually at (0,0), now how do we move a graph?  or in other words  translating it.

To move left and right you use \sqrt{x-h} where if you subtract h you move right and if you add h you move left.  we go from (0,0) to (-4,2).  so 0 to -4 is 4 left, so that means we add 4.

To move up and down we use \sqrt{x}+v Here if v is positive you move up and if v is negative you move down.  going from (0,0) to (-4,2) it moves up 2

So now we put them all together -\sqrt{x+4}+2  And if you look, C matches that exactly.

6 0
2 years ago
Which of the following is not a solution to the system of linear equations below? 5y=3x+15 6x=10y-30 A. (5, 6) B. (–15, 12) C. (
Alecsey [184]
Option B is not a solution.

5y=3x+15
5(12)=3(-15)+15
60=-45+15
60≠-30


Hope I didn't mess up for your sake!
7 0
3 years ago
10+x > 17 solving one step inequalities
pogonyaev

Answer:

x > 7

Step-by-step explanation:

you move over the 10 to the left and it becomes negative.

x > 17 - 10

so then you subtract the 17 - 10 and you would get 7.

x > 7

8 0
2 years ago
Read 2 more answers
The equation C(l) = l3 – l2 + l + 2.5 models the cost to mail a package as a function of its length. To the nearest quarter inch
Anettt [7]

Answer:

Step-by-step explanation:

Set the cost equation C(l) = l3 – l2 + l + 2.5 equal to $11.00 and solve for l:

                                     C(l) = 2l + 2.5 = $11, or

                                               2l = 8.5, or l = length = 4.25 inches

6 0
2 years ago
Read 2 more answers
In the year 2005, there were 100 rabbits in a particular region. Since then, the population has increased by 3.4% per year. Writ
Andreas93 [3]

Answer:

Step-by-step explanation:

Your answer

Ok, lets do it systematically.

2005– 100 rabbits

3.4 % per year increasement.

So every year it increase 0.034 *100 = 3.4 per year

Total 2025-2005= 20 years

So expression is : 0.034*100*year(20)

Answer is : 3.4*20 = 68. So, in 2025, total rabbits will be 168

Mark it as Brainlist answer. Follow me.

3 0
3 years ago
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