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4 years ago

The perimeter of a rectangle playground is 40 yards it is 1 1/2 yards longer than it’s Wide what is the area of the playground

Mathematics

1 answer:

Sladkaya [172]4 years ago

4 0

Times and add. for example perimeter is adding all sides

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Can someone please help me please?

max2010maxim [7]

Answer:

B, C, D and E. A and F are incorrect

Step-by-step explanation:

5 0

3 years ago

If <img src="https://tex.z-dn.net/?f=x-12%5Csqrt%7Bx%7D%20%2B36%3D0" id="TexFormula1" title="x-12\sqrt{x} +36=0" alt="x-12\sqrt{

Elis [28]

Answer:

x = 36

Step-by-step explanation:

$x - 12\sqrt{x} + 36 = 0$

Subtract x and 36 from both sides.

$-12\sqrt{x} = -x - 36$

Divide both sides by -1.

$12\sqrt{x} = x + 36$

Square both sides.

$144x = x^2 + 72x + 1296$

Subtract 144x from both sides.

$0 = x^2 - 72x + 1296$

Factor the right side.

$0 = (x - 36)^2$

$x - 36 = 0$

$x = 36$

Since the solution of the equation involved squaring both sides, we musty check the answer for possible extraneous solutions.

Check x = 36:

$x - 12\sqrt{x} + 36 = 0$

$36 - 12\sqrt{36} + 36 = 0$

$36 - 12\times 6 + 36 = 0$

$36 - 72 + 36 = 0$

$0 = 0$

Since 0 = 0 is a true statement, the solution x = 36 is a valid solution.

6 0

4 years ago

If a measured distance of 5 inches on a map respresents an actual distance of 3 miles, what is the fractional scale of the map?

OverLord2011 [107]

5 inches: 3 miles
1 inch: 0.6 miles

8 0

4 years ago

Match the exponential expression with its rule:

mina [271]

1.=d
2.=a
5.=b
4.=e
3.=c

6 0

4 years ago

A ladder is placed with its foot 5m from the bottom of a wall 12m high. The top of the ladder just

Stels [109]

Answer:

13 m

Step-by-step explanation:

The ladder forms a right triangle with the wall that has legs of 5 and 12. We need to solve for the length of the ladder, which in this case, is the hypotenuse of the right triangle. You could use the Pythagorean Theorem but there's an easier way to do this. We can use the 5 - 12 - 13 Pythagorean triple so we know that the length of the ladder is 13 m.

8 0

4 years ago