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KIM [24]
3 years ago
12

What is the area of the trapezoid below?

Mathematics
2 answers:
Arisa [49]3 years ago
4 0

Answer is:

36 square root of 3 c m squared

TEA [102]3 years ago
3 0
The answer is A. 36\sqrt{3} cm^{2}
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Describe the steps you would use to solve the equation 5( 2a - 3 ) = 20 + a.
Valentin [98]

Answer:

Distribute the 5 to get 10a-15=20+a and solve

4 0
2 years ago
Find the perimeter.
Scorpion4ik [409]

Answer:

7 1/3 inches

Step-by-step explanation:

2 (1 3/4 + 1 11/12)

9+11

3/4+11/12= -------------

12

20/12

=1 2/3+ 2

2(3 2/3)

= 7 1/3

7 0
2 years ago
30 POINTS<br><br> why are 3/4 and 6/8 equivalent
umka21 [38]

3/4 and 6/8 are equal and this is right I believe

4 0
3 years ago
the height of a triangle is 4 meters less than the base. if the area of the triangle is 6 m^2 what is the height of the triangle
inna [77]

Answer:

2m

Step-by-step explanation:

Alrighty let's do this.

We know that formula for the Area of a triangle is:

A = \frac{1}{2}bh

They give us the area as 6m^2, so let's include it in the equation.

6 = \frac{1}{2}bh

Now we reach a stage where we have 2 unknown variables! That means we can't solve it in its current state. So the idea you should have in cases like these where you have 2 or more unknown variables is, "Can I represent this one variable in terms of another variable?" In this case you can do exactly that. You can represent height in terms of length of the base. We are told the height of the triangle is 4 meters less than the base. That is telling us that h = b-4

So replace h in the equation with b-4.

You will now get:

6 = \frac{1}{2}b(b-4)

Now we can work towards solving. Let's get simplifying.

12 = b(b-4)\\12 = b^2 - 4b\\

bring everything to one side so we can make a quadratic and factor:

0 = b^2 - 4b - 12\\0 = (b-6)(b+2)\\\\b = 6\\b\neq -2

We get that b=6.

Since we need the height of the triangle we'll need to call back on what h is. We found earlier that h = b - 4, so to find h, we just sub in our b value into that.

h = (6) - 4 = 2

We find that h=2

7 0
2 years ago
The total bill for dinner, including tax, was $65.81. In Indiana there is a 7% sales tax. What was the price of the meal before
Ratling [72]

Answer:

$56.41

Step-by-step explanation:

You have to divide the total bill by the sales tax and the multiply that number by 100. Then subtract that number from the total bill and that's how you get your answer.

4 0
3 years ago
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