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3 years ago

Find the area of the trapeziod 25 ft 20 ft 15 ft

Mathematics

1 answer:

Natalka [10]3 years ago

3 0

The area of the trapeziod is 337.5

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X^2 - y^2 = 100

luda_lava [24]

Answer:

Step-by-step explanation:

Let's start by rewriting the second equation in terms of "x":

$x+y=5$

Subtract y from both sides:

$x=5-y$

Now, substitute "5-y" for "x" in the first equation:

$(5-y)^2-y^2=100$

Note that:

$(a-b)^2=a^2-2ab+b^2$

$25-10y+y^2-y^2=100$

Cancel out like terms:

$25-10y=100$

Subtract 25 from both sides:

$-10y=75$

Divide both sides by -10

$y=\frac{75}{-10}=\frac{15}{-2}=-\frac{15}{2}$

Now, substitute this value back into either of the equations to solve for x.

$x+y=5\\x-\frac{15}{2}=5\\$

Add 15/2 to both sides:

$x=5+\frac{15}{2}\\x=\frac{10}{2}+\frac{15}{2}\\x=\frac{25}{2}$

Now, find the difference:

$x-y=\frac{25}{2}-(-\frac{15}{2})=\frac{25}{2}+\frac{15}{2}=\frac{40}{2}=20$

8 0

2 years ago

The table shows Malena's bank account summery for a month. Which two values could be the remaining two debits ?

Bogdan [553]

b, but I'm not sure. this could very easily be incorrect. you may need to look this up on google first.

6 0

3 years ago

Hello help please i’ll mark brainliest!!!

Wittaler [7]

Answer:

The moon has moved past the full moon and is moving toward the third quarter.

Step-by-step explanation:

7 0

3 years ago

What is the exponent in the power of 10?

Arisa [49]

X^10 the exponent would be 10

4 0

3 years ago

Simplify the expressions by combining like terms<br><br> 1.5r - 3r + 8r + 2.5r

Tomtit [17]

Answer:

Step-by-step explanation:

1.5r - 3r + 10.5r

10.5r + 1.5r = 12r

12r - 3r = 9r

Final Answer = 9r

5 0

3 years ago