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Nata [24]
3 years ago
14

A bulletin board is 3 ft high. the area is 15 sq ft. what is the perimeter?

Mathematics
1 answer:
Ipatiy [6.2K]3 years ago
5 0
First step: Find how wide the bulletin board is
     15 ft² ÷ 3 ft = 5 ft
Step the second: Use the perimeter formula P = 2l + 2w
     P = 2(5) + 2(3)
     <u>P = 16 ft</u>
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Solve the equation, and check the solutions (√x+3)+6=3.
larisa86 [58]

Answer:

The equation has no solution.

Step-by-step explanation:

Hi there!

First, let´s write the equation:

(√x + 3) + 6 = 3

To solve the equation, let´s subtract 6 to both sides of the equation:

√x + 3 = -3

subtract 3 to both sides of the equation:

√x = -6  (the square root of any number can´t be negative, but let´s solve it anyway and then check the solution).

Square both sides of the equation:

x = 36

Now, let´s check the solution:

(√x + 3) + 6 = 3

x = 36

(√36 + 3) + 6 = 3

(6 + 3) + 6 = 3

9 + 6 = 3

15 ≠ 3

Then, the equation has no solution.

Have a nice day!

6 0
3 years ago
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SOVA2 [1]

Answer:

5/7

Step-by-step explanation:

You find a slope by using the equation y2-y1/x2-x1.

In this case: 15-5/21-7

10/14

5/7

6 0
3 years ago
64×15=32×30 true or false
Dima020 [189]

\large \mathfrak{Solution : }

Yes, it's true because the value of LHS = RHS if we solve it .

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4 0
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Serggg [28]
Same here, we do a quick switcharoo on the variables first,

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Lapatulllka [165]

Answer:

I think the answer would be C.

Step-by-step explanation:

hope I help

3 0
3 years ago
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