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Evgesh-ka [11]
4 years ago
11

Find the area of the figure. PLZ HURRY

Mathematics
2 answers:
Alex4 years ago
4 0

Answer:

132 cm²

Step-by-step explanation:

Area = rectangle + trapezoid

(7 × 4) + [½(7 + 19) × 8]

28 + 204

132 cm²

Serjik [45]4 years ago
3 0

Answer:

132 cm²

Step-by-step explanation:

This is a composite figure, so we want to find the area of the top rectangle and the bottom trapezoid and then add those together.

The area of a rectangle is denoted by: A = lw, where l is the length and w is the width. Here, the length is l = 4 and the width is w = 7, so the area is:

A = lw

A = 7 * 4 = 28 cm²

The area of a trapezoid is denoted by: A = \frac{(b_1+b_2)*h}{2}, where b1 and b2 are the bases and h is the height. Here, the two bases are 7 and 19 and the height is h = 8. So, the area is:

A = \frac{(b_1+b_2)*h}{2}

A = \frac{(7+19)*8}{2}=26 *4=104 cm²

Add these together:

28 + 104 = 132 cm²

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The formula to calculate the area of a circle from its circumference is:<br><br><br> A =c2/4π
densk [106]

Answer:

(if its a true or false question) True

Step-by-step explanation:

<u>We know-</u>

<u>Area of a circle = </u>

A=(π)r2

<u>Circumference of a circle = </u>

C=2(π)r

<u>Where pi is a constant and r is the radius of the circle.</u>

<u>Using these two formulas we can express A in terms of C as follows:</u>

<u />

c2=[2(π)r]2

⇒ c2=4[(π)2]r2 ⇒ c2=4(π)[(π)r2]

As (π)r2=A ⇒c2=4(π)A

<u>Therefore:</u>

A=c2/4(π)

4 0
3 years ago
Another housecleaning service, Acme Home, calculates its fees using the equation y=25x
Vitek1552 [10]

Answer:

y < 25x , or y = kx { where k < 25 } , or choosing a time saving worker {as fee is in terms of hours}

Step-by-step explanation:

Services cost : y = 25x , where y is the total fee and x is the number of hours worked.

If customer is looking to choose the less expensive cleaning service ; he / she has following options -

  • Choosing fee structure where y < 25x
  • Choosing y = k x , where k per hour fee is lesser
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5 0
3 years ago
Hey! Please find the value of x, so I can find the value of angle H! Thanks
o-na [289]
Hey there! :D

The congruence marks on the trapezoid make the angles congruent. This makes opposite angles supplementary. (Because all the angles in a trapezoid add up to 360 degrees)

12x-31+6x-5= 180

18x-36= 180

Add 36 to both sides. 

18x= 216 

Divide both sides by 18. 

x= 12

You can just plug that in to find m<H. 

6x-5

6(12)-5

72-5

m<H= 67

I hope this helps!
~kaikers




3 0
3 years ago
Math: <br> -x + 6 is greater than or equal to 10
Alla [95]

Answer:

It is actually less than 10.

Step-by-step explanation:

7 0
3 years ago
Consider the following equation: f(x)=x^2+4\4x^2-4x-8 name the vertical asymptote(s)
zhenek [66]

ANSWER

The vertical asymptotes are


\Rightarrow x=2\:or\:x=-1

<u>EXPLANATION</u>

We have

f(x)=\frac{x^2+4}{4x^2-4x-8}


For vertical asymptotes we set the denominator to zero and solve the quadratic equation;

4x^2-4x-8=0


\Rightarrow x^2-x-2=0

We split the middle term to obtain,

x^2+x-2x-2=0

\Rightarrow x(x+1)-2(x+1)=0


\Rightarrow (x-2)(x+1)=0


\Rightarrow x=2\:or\:x=-1


Therefore the vertical asymptotes are


x=2\:or\:x=-1





3 0
4 years ago
Read 2 more answers
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