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3 years ago

7777777777777777777777777777777777777777777777777777777777x1

Mathematics

1 answer:

Vikki [24]3 years ago

6 0

Answer:

7777777777777777777777777777777777777777777777777777777777

Step-by-step explanation:

Any number multiplied by 1 is itself.

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What is 1 5/6 divided by -3 3/10 in fraction or mixed number?

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Find the value of x. A 4 B 6 C 3 D 2

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3 years ago

1,478 people went to the movies on Saturday, and 956 people went to the movies on

wlad13 [49]

The percent decrease in people going to the movies from Saturday to Sunday is 35.3%

Step-by-step explanation:

The percent decrease is given by the formula:

$Percent\ decrease = \frac{Decrease}{Old\ Value}*100\\where \\Decrease = Old\ value -New\ value\\$

Given

New Value = 956

Old Value = 1478

Decrease = 1478-956

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$Percent\ decrease= \frac{522}{1478}*100\\=0.353*100\\=35.3\%$

The percent decrease in people going to the movies from Saturday to Sunday is 35.3%

Keywords: Percentage

Learn more about percentage at:

#LearnwithBrainly

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3 years ago

In an isosceles trapezoid the length of a diagonal is 25 cm and the length of an altitude is 15 cm. Find the area of the trapezo

andreev551 [17]

Answer:

The area of the trapezoid is $525\ cm^{2}$

Step-by-step explanation:

we know that

The area of a isosceles trapezoid is equal to the area of two isosceles right triangles plus the area of a rectangle

step 1

Find the area of the isosceles right triangle

Remember that

In a isosceles right triangle the height is equal to the base of the triangle

we have

$h=15\ cm$

$b=15\ cm$

The area is equal to

$A=\frac{1}{2}(b)(h)$

substitute the values

$A=\frac{1}{2}(15)(15)=112.5\ cm^{2}$

step 2

Find the area of the rectangle

The area of the rectangle is equal to

$A=LW$

we have

$W=15\ cm$ -----> is the height of the trapezoid

$d=25\ cm$ -----> the diagonal of the rectangle

Applying the Pythagoras Theorem

$25^{2}=L^{2}+15^{2}\\L^{2}=25^{2}-15^{2} \\ L^{2} =400\\L=20\ cm$

The area of the rectangle is

$A=(20)(15)=300\ cm^{2}$

step 3

Find the area of the trapezoid

$A=2(112.5\ cm^{2})+300\ cm^{2}=525\ cm^{2}$

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