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Rashid [163]
3 years ago
15

Find the area of the trapezoid. A. 675 ft2 B. 337.5 ft2 C. 187.5 ft2 D. 150 ft2

Mathematics
2 answers:
Grace [21]3 years ago
5 0
I think ur answer will be b
Sergeeva-Olga [200]3 years ago
5 0

Answer: B. 337.5\text{ ft.}^2

Step-by-step explanation:

The area of trapezoid is given by :-

\text{Area}=\dfrac{1}{2}h(a+b), where a and b are the parallel sides and h is the height.

From the given picture, we have

Height (h) = 15 ft

a =  20 ft.

b =  25 ft.

Then , the area of trapezoid is given by :-

\text{Area}=\dfrac{1}{2}(15)(20+25)\\\\\Rightarrow\text{Area}=337.5\text{ ft.}^2

Hence, the area of trapezoid is 337.5\text{ ft.}^2

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Mrac [35]

Answer:

A Exactly one solution

Step-by-step explanation:

\left \{ {{6x-3y=9} \atop {6x+y=9}} \right.\\\\\left \{ {{6x-3y=9} \atop {-6x-y=-9}} \right\\\\Then, \\\\-4y=0\\\\\\ y=0\\\\

Putting y=0 at second equation, we have

-6x=-9\\\\x=\frac{9}{6} =\frac{3}{2}

The unique solution is (\frac{3}{2} , 0)

3 0
3 years ago
I need help ASAP) i need both answers (person who gets it right gets a brainlist and 5 stars)
Flauer [41]

Answer:

Part A: 24 meters

Part B: 33 meters²

Step-by-step explanation:

Part A: We know the length of 4 of the sides. The other two sides are 2 m & 1 m. Now add all of those values up. 3 + 7 + 5 + 6 + 2 + 1 = 10 + 11 + 3 = 21 + 3 = 24 meters. The perimeter of the polygon is 24 meters.

Part B: I'll split this into two rectangles: one is 3 by 7, and the other is 6 by 2. (3 * 7) + (6 * 2) = 21 + 12 = 33 meters². The area of the polygon is 33 meters².

8 0
3 years ago
A 9-foot piece of wood is cut into shelves. If each is 3/7 foot in length, how many shelves are there?
Aloiza [94]

Hello!

To find how much shelves we cut, we need to divide 9 feet by 3/7 feet. When dividing by fractions, it is like multiplying its reciprocal.

This means that the reciprocal of 3/7 is 7/3.

9 / \frac{3}{7} = \frac{9}{1} * \frac{7}{3} = \frac{63}{3} = 21

Therefore, if each shelf is 3/7 feet in length, then there are 21 shelves.

6 0
3 years ago
What is the reciprocal of 7/9
Margaret [11]
Your answer would be 0<span>.01587301587
Hope this helped
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</span>
6 0
4 years ago
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In the graph above, the coordinates of the vertices of quadrilateral QPRS are Q(2, 4), P(4, 4), R(3, 1), and S(1, 1). If quadril
larisa [96]

Answer:

(1, -1)  

Step-by-step explanation:

When you reflect a point (x, y) across the x-axis, its coordinates

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7 0
3 years ago
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