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Fofino [41]
3 years ago
13

Base 1 of a trapezoid is 10 ft base is 8 feet the height is 5 ft the area is?

Mathematics
1 answer:
andriy [413]3 years ago
3 0

Answer: The area of the trapezoid is 45 square feet .

Step-by-step explanation:

Formula : Area of trapezoid : A=\dfrac{1}{2}(a+b)h , where a and b are the parallel opposite sides (bases) and h= height.

We are given that : A trapezoid has Base 1 = 10 ft

Base 2 = 8 feet

height = 5 ft

Then, the area of the trapezoid would be (Put a=10 , b= 8 and h=5)

A=\dfrac{1}{2}(10+8)(5)

A=\dfrac{1}{2}(18)(5)

A=(9)(5)=45\ \text{square feet}

Therefore , the area of the trapezoid = 45 square feet

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(15 points)
nikitadnepr [17]

Answer:

5) p=67.5

6) p=60.9

Step-by-step explanation:

To find the perimeter of a polygon you add all the side lengths together.

Step 1:

11.3+11.3+23.3+21.6=67.5

Step 2:

19.7+14+9.3+17.9=60.9

8 0
3 years ago
Read 2 more answers
Which are the solutions of x^2 = –11x + 4?
strojnjashka [21]

This is a quadratic equation, i.e. an equation involving a polynomial of degree 2. To solve them, you must rearrange them first, so that all terms are on the same side, so we get

x^2 + 11x - 4 = 0

i.e. now we're looking for the roots of the polynomial. To find them, we can use the following formula:

x_{1,2} = \frac{-b\pm\sqrt{b^2-4ac}}{2}

where x_{1,2} is a compact way to indicate both solutions x_1 and x_2, while a,b,c are the coefficients of the quadratic equation, i.e. we consider the polynomial ax^2+bx+c.

So, in your case, we have a=1,\ \ b=11,\ \ c=-4

Plug those values into the formula to get

x_{1,2} = \frac{-11\pm\sqrt{121+16}}{2} = \frac{-11\pm\sqrt{137}}{2}

So, the two solutions are

x_1 = \frac{-11+\sqrt{137}}{2}

x_2 = \frac{-11-\sqrt{137}}{2}

3 0
3 years ago
Order - 11, 22, -10, 17, -26, and 1 from greatest to least.​
Ratling [72]
Greatest 22,17,1,-10,-11,-26 least
3 0
3 years ago
-3x + 9 = -18 what's the answer
Art [367]

Answer:

x=9

Step-by-step explanation:

subtract 9 from both sides.

-3x = -27

divide by -3

x=9

6 0
2 years ago
Read 2 more answers
If you could please help me that would be great.
Brut [27]
No.1
r=9

No.3
r=10.5ft

No.5
C=132m

No.7
C=25.12

No.9
44

No.11
264cm

No.13
97.34m

No.15
47.1

No.17
Am not sure

Hope this helps though
8 0
1 year ago
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