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Troyanec [42]
4 years ago
15

What is the area figure below??

Mathematics
1 answer:
Ivenika [448]4 years ago
8 0

area of trapezoid is 1500 & represented with expression Area = \frac{75+25}{2}(30) . Correct answer is c) .

<u>Step-by-step explanation:</u>

Here we have , a Trapezoid in figure. A trapezoid is a 4-sided flat shape with straight sides that has a pair of opposite sides parallel . A trapezoid:

  • has a pair of parallel sides
  • is an isosceles trapezoid when it has equal angles from a parallel side
  • is called a "trapezium" in the UK

Area of Trapezoid = \frac{a+b}{2} (h) , a & b are the parallel sides and , h is height of trapezoid  . Let's find area of Trapezoid:

⇒ Area = \frac{a+b}{2}(h)

⇒ Area = \frac{75+25}{2}(30)

⇒ Area = \frac{100}{2}(30)

⇒ Area = (50)(30)

⇒ Area = 1500

So, area of trapezoid is 1500 & represented with expression Area = \frac{75+25}{2}(30) . Correct answer is c) .

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What geometrical figures have a measurable quantity
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Answer:

An angle and a line segment are measurable

Step-by-step explanation:

The geometric figures without measurable quantity:

- A line is infinite and have no measurable length.

- A point is a zero dimensional.

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5 0
3 years ago
Solve using the quadratic formula. 2x2 + 9x + 8 = 0 Write your answers as integers, proper or improper fractions in simplest for
Natalija [7]
2 x 2 + 9x + 8 = 0
4 + 9x + 8 = 0
12 + 9x = 0 (subtract 12 from each side)
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4 0
3 years ago
Using the Descartes Rule of Signs, describe the real zeroes of the function.
mrs_skeptik [129]

as you already know, Descartes rule of signs check the times the sign changes or f(x) and for f(-x)


\bf \stackrel{\textit{positive roots}}{f(x)=}\underset{change}{2x^5-}x^4\underset{change}{-2x^3+}4x^2\underset{change}{+x-2} \\\\\\ \stackrel{\textit{negative roots}}{f(~-x~)=}-2x^5\underset{change}{-x^4+}2x^3\underset{change}{+4x^2-}x-2


by the fundamental theorem of algebra, the polynomial has a degree of 5, so it has to have at most 5 zeros/solutions/roots.

f(x) has 3 sign changes, notice, that means, it has either 3, or (3-2), 1 positive zeros.

for f(-x), recall that x³, will be (-x)³ = (-x)(-x)(-x) = -x³, so in short, if the exponent is ODD, the sign changes for that term, if it's EVEN, it doesn't change.

so for f(-x), we have 2 sign changes, meaning, it has either 2 or (2-2), 0 negative roots.

the slack is picked up by the complex roots.

so

3 positive, 2 negative, 0 complex

or

1 positive, 2 negative, 2 complex  *recall complex always come in pairs*

or

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5 0
3 years ago
What is of the area of circle with a circumference of 12.56 feet?
Leona [35]

Answer:

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= 25.12×6.28²

= 25.12×39.4

= 990.6cm²

Step-by-step explanation:

circumference of a circle is 2π

radius of a circle is 2π/4

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Answer:

8

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