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Valentin [98]
3 years ago
9

25. Find the area of the trapezoid. Leave your answer in simplest radical form. The figure is not drawn to scale.

Mathematics
1 answer:
n200080 [17]3 years ago
6 0

Answer:

Option D. 44\ cm^{2}

Step-by-step explanation:

we know that

The area of a trapezoid is equal to

A=\frac{1}{2}[b1+b2]h

we have

b1=8\ cm

b2=(4+8+2)=14\ cm

h=4\ cm

substitute the values

A=\frac{1}{2}[8+14](4)=44\ cm^{2}

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LUCKY_DIMON [66]
Sorry I don’t get this one anymore ???
8 0
4 years ago
What type of triangle is a 9.9 cm, 9 cm, 0.99 cm
Masja [62]
It would be an isosceles triangle. Since there are two sides of the triangle that are congruent, it would be isosceles.

Isosceles has two congruent sides, scalene has none, and equilateral has three.  

(A good tip to do is this: count the number of syllables in each word. Then take away two. That's how many sides that triangle has.)

Ex: i-so-sce-les has four syllables. Take away two, you get two. Therefore, an isosceles triangle has two congruent sides.

Hope that helps!
6 0
3 years ago
A quadratic equation with real coefficients and leading coefficient 1, has x = -bi as a root. Write the equation in general form
andrey2020 [161]
<span>The general form of quadratic equation with real coefficients and leading coefficient 1, has x = -bi as a root
=> x = <u>-b  + </u></span><u>√ b^2 – 4 ac</u><span>
                    2a

It is also written as:
=> ax^2 + bx + c = 0

Quadratic equation involves unknown numbers which is x, the numbers which a, b and c are called coeffecients.
There are also quadratic factorization where you factor the polynomial give to be able to get the value of the equation.</span>



5 0
3 years ago
Read 2 more answers
You are installing new carpeting in a family room. The room is rectangular with dimensions 2012feet × 1318feet . You intend to i
Pavlova-9 [17]

Answer: 1. When you estimate, it is not an exact measurement. 3ft 8 in gets rounded to 4ft and 12 ft 3 in rounds to 12ft. now find the perimeter. P=2l+2w P= 2*12 +2*4 P=32feet

2. 3ft 8in = 3 8/12 or reduced to 3 2/3  12ft 3in = 12 3/12 or reduced to 12 1/4   The fractional part is referring to a fraction of a foot.

3. The perimeter of the room is P=2l+2w or P=2(12 1/4) + 2(3 2/3) p=24 1/2 + 7 1/3  P= 31 5/6 feet

4. The estimate and the actual are very close. They are 1/6 of a foot apart.

5a. Total baseboard 31 5/6ft - 2 1/4 ft = 29 7/12 feet needed.

5b. Take the total and divide it by 8ft  = 29 7/12 divided by 8= 3.7  You are not buying a fraction of a board so you would need 4 boards.

7 0
3 years ago
Hello can anyone please help me
____ [38]

Answer:

B.

Step-by-step explanation:

6 0
3 years ago
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